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Ethereum-based web3 ترقی کے ساتھ آسانی سے شروع کرنے کے لیے FMZ کا استعمال کریں۔

Created 2023-03-28 13:32:48 Updated 2024-11-11 22:28:24

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EtherEaseWithFMZ ٹیوٹوریل

Ethereum-based web3 ترقی کے ساتھ آسانی سے شروع کرنے کے لیے FMZ کا استعمال کریں۔

ایتھرئم ایک سمارٹ کنٹریکٹ پلیٹ فارم ہے جو بلاک چین ٹیکنالوجی پر مبنی ہے، جو سمارٹ معاہدوں کو لکھنے اور تعینات کرنے کا ایک غیر مرکزی طریقہ فراہم کرتا ہے۔ سمارٹ کنٹریکٹ ایک خاص کمپیوٹر پروگرام ہے جو خود بخود بلاک چین پر عمل میں لایا جا سکتا ہے اور کسی تیسرے فریق پر بھروسہ کیے بغیر مختلف کاروباری منطقوں کو لاگو کر سکتا ہے۔

Inventor Quantitative Trading Platform (FMZ.COM) ایک استعمال میں آسان API فراہم کرتا ہے جو ڈیولپرز کے لیے Ethereum blockchain اور اس کے ماحولیاتی نظام کے ساتھ بات چیت کرنا آسان بناتا ہے۔ ڈی سینٹرلائزڈ ایکسچینجز (DEX) تک رسائی، آن-چین ڈیٹا حاصل کرنا، اور لین دین بھیجنے جیسے افعال کا ادراک کریں۔

اس ٹیوٹوریل کے استعمال کی مثالیں۔JavaScriptزبان کی تحریر، ٹیسٹ کے ماحول کا استعمالایتھریم مینیٹ、گوئرلی ٹیسٹ نیٹ. آپ ٹیوٹوریل میں استعمال ہونے والے API انٹرفیس کے ساتھ ساتھ FMZ پلیٹ فارم کے API دستاویزات میں متعلقہ وضاحتیں اور کوڈ کی مثالیں بھی دیکھ سکتے ہیں۔

FMZ کے ساتھ شروع کرنا

FMZ مقداری تجارتی پلیٹ فارم کو استعمال کرنا سیکھنے سے پہلے، ہمیں کئی بنیادی تصورات سے واقف ہونا ضروری ہے:

1. FMZ مقداری تجارتی پلیٹ فارم فن تعمیر

FMZ مقداری تجارتی پلیٹ فارم (https://www.fmz.com) کی آفیشل ویب سائٹ پر رجسٹر ہونے اور لاگ ان کرنے کے بعد، آپ پلیٹ فارم کے مختلف افعال استعمال کر سکتے ہیں۔ FMZ ویب سائٹ پورے سسٹم کا انتظامی اختتام ہے، اور صارفین کے لکھے ہوئے پروگرام دراصل میزبان پر چلائے جاتے ہیں۔ میزبان ایک سافٹ ویئر پروگرام ہے جسے مختلف آلات، جیسے سرورز، کمپیوٹرز وغیرہ پر تعینات کیا جا سکتا ہے۔ جب کوئی صارف پروگرام لکھتا ہے اور FMZ ویب سائٹ پر ایک رننگ مثال تیار کرتا ہے، FMZ پلیٹ فارم میزبان کے ساتھ بات چیت کرے گا اور میزبان پر پروگرام کی مثال شروع کرے گا۔

2. میزبان

اگر آپ کسی پروگرام کو چلانا چاہتے ہیں، تو آپ کو ایک میزبان کو تعینات کرنا ہوگا، میزبان کی تعیناتی بھی بہت آسان ہے، اور پلیٹ فارم پر ایک تعیناتی ٹیوٹوریل موجود ہے۔ آپ FMZ پر فراہم کردہ "ایک کلک کی تعیناتی ہوسٹ" کو بھی استعمال کر سکتے ہیں تاکہ FMZ کی طرف سے کرائے پر لیے گئے سرور کو خود بخود تعینات کیا جا سکے۔

ذاتی ڈیوائس پر میزبان تعینات کریں۔

نگہبان پروگرام کو سرورز، پرسنل کمپیوٹرز اور دیگر ڈیوائسز پر تعینات اور چلایا جا سکتا ہے، جب تک کہ نیٹ ورک نارمل ہو (متعلقہ ہدف تک رسائی کے قابل ہونا ضروری ہے، جیسے ایکسچینج انٹرفیس، نوڈ ایڈریس وغیرہ)۔ تعیناتی کے اہم اقدامات یہ ہیں:
1. لاگ ان کریں یا اس ڈیوائس کو کھولیں جہاں آپ میزبان پروگرام کو تعینات کرنا چاہتے ہیں، جیسےسرور میں لاگ ان کریں۔یاکمپیوٹر کو آن کریں اور آپریٹنگ سسٹم میں داخل ہوں۔。
2. میزبان پروگرام کا متعلقہ ورژن ڈاؤن لوڈ کریں (ڈیوائس آپریٹنگ سسٹم پر منحصر ہے)، صفحہ ڈاؤن لوڈ کریں: https://www.fmz.com/m/add-node
3. ڈاؤن لوڈ کی گئی فائل ایک کمپریسڈ پیکج ہے، جسے ڈی کمپریس کرنے کی ضرورت ہے۔
4. میزبان پروگرام چلائیں میزبان پروگرام ایک پروگرام ہے۔robotقابل عمل فائل. نگہبان مواصلات کا پتہ ترتیب دیں FMZ میں لاگ ان کرنے کے بعد،https://www.fmz.com/m/add-nodeصفحہ اپنا پتہ دیکھ سکتا ہے (یعنی./robot -s node.fmz.com/xxxxxپتوں کا یہ سلسلہ، یہاںxxxxxمقام کا مواد ہر FMZ اکاؤنٹ کے لیے مختلف طریقے سے ظاہر ہوتا ہے)۔ آخر میں، آپ کو FMZ اکاؤنٹ کا پاس ورڈ درج کرنے کی ضرورت ہے، ان کو ترتیب دینے کے بعد، میزبان پروگرام کو چلائیں۔
FMZ پلیٹ فارم کے "کسٹوڈین کی ایک کلک کی تعیناتی" فنکشن کا استعمال کریں۔

FMZ پلیٹ فارم پر ایک محافظ صفحہ شامل کریں، پتہ:https://www.fmz.com/m/add-node

3. ڈیبگنگ ٹولز

FMZ مقداری تجارتی پلیٹ فارم ایک مفت ڈیبگنگ ٹول فراہم کرتا ہے جو سپورٹ کرتا ہے۔JavaScript，TypeScriptصفحہ یہ ہے: https://www.fmz.com/m/debug، کیونکہ ایک مثال بنانے اور اسے چلانے کا بل آتا ہے۔ یہ ڈیبگنگ ٹول ابتدائی سیکھنے کی مدت کے دوران جانچ اور سیکھنے کے لیے استعمال کیا جا سکتا ہے۔ ڈیبگنگ ٹول ایک مثال بنانے سے مختلف نہیں ہے، سوائے اس کے کہ چلانے کا وقت 3 منٹ تک محدود ہے۔

استعمال کریںTypeScriptزبان استعمال کرتے وقت، آپ کو اسے کوڈ کی پہلی لائن میں لکھنا ہوگا۔// @ts-checkپر سوئچ کرنے کے لیےTypeScriptموڈ، اگر سوئچ نہیں کیا گیا تو، ڈیفالٹ ہے۔JavaScriptزبان

4. تبادلے

FMZ پر، "تبادلہ" ایک عام تصور ہے CEX ایکسچینج کے لیے، یہ ایک مخصوص ایکسچینج اکاؤنٹ کنفیگریشن سے مراد ہے۔ web3 کے لیے، یہ تبادلہ کنفیگریشن کی معلومات کا حوالہ دیتا ہے، بشمول نوڈ ایڈریس اور پرائیویٹ کلید کنفیگریشن۔

FMZ پلیٹ فارم میں لاگ ان ہونے پر،https://www.fmz.com/m/add-platformصفحہ، آپ تبادلے کی معلومات کو ترتیب دے سکتے ہیں، جہاں تبادلہ ایک عام تصور ہے۔

منتخب کریںWeb3RPC نوڈ ایڈریس اور پرائیویٹ کلید کو کنفیگر کریں آپ سیکیورٹی میکانزم کو دیکھنے کے لیے نیچے دائیں کونے میں "حساس معلومات کو خفیہ اور محفوظ کیا گیا ہے" پر کلک کر سکتے ہیں۔

نوڈس خود ساختہ ہو سکتے ہیں یا نوڈ سروس فراہم کرنے والے فراہم کر سکتے ہیں۔ بہت سے نوڈ سروس فراہم کرنے والے ہیں، جیسے:Infura. رجسٹریشن کے بعد، آپ اپنے اکاؤنٹ کا نوڈ ایڈریس دیکھ سکتے ہیں۔ مین نیٹ اور ٹیسٹ نیٹ دونوں موجود ہیں، جو کہ اوپر کی شکل میں اس نوڈ ایڈریس کو کنفیگر کریں۔Rpc Addressکنٹرولز میں کنفیگر شدہ ایکسچینج اشیاء کو الگ کرنے کے لیے ٹیگز کا نام خود رکھا جا سکتا ہے۔

شکل میںhttps://mainnet.infura.io/v3/xxxxxxxxxxxxxیہ نجی Infura ETH مینیٹ RPC نوڈ ایڈریس ہے۔

Ethereum کے ساتھ تعامل کرنے کے لیے FMZ کا استعمال

کسٹوڈین پروگرام کو تعینات کرنے اور ایکسچینج آبجیکٹ کو ترتیب دینے کے بعد، آپ جانچ کے لیے FMZ.COM کا "ڈیبگنگ ٹول" استعمال کر سکتے ہیں۔ Ethereum کے ساتھ تعامل کرنے کے لیے Ethereum RPC طریقوں کو کال کریں اس باب میں درج کئی RPC طریقوں کے علاوہ، آپ دیگر RPC طریقوں کے لیے دستاویزات کا حوالہ دے سکتے ہیں۔https://www.quicknode.com/docs。

آئیے چند سادہ مثالیں لیتے ہیں اور بنیادی باتوں سے شروعات کرتے ہیں۔ مختلف زبانوں اور ٹولز کے لیے web3 تک رسائی کے طریقے ہیں، جیسا کہ تصویر میں دکھایا گیا ہے:

آر پی سی میتھڈ کالز بھی ایف ایم زیڈ پر انکیپسولڈ ہیں یہ فنکشنز ایف ایم زیڈ API فنکشن میں شامل ہیں۔exchange.IOدرمیانی کال کرنے کا طریقہ ہے۔exchange.IO("api", "eth", ...). پہلا پیرامیٹر طے ہے۔"api"، دوسرا پیرامیٹر طے شدہ ہے۔"eth"، دوسرے پیرامیٹرز کا انحصار مخصوص RPC طریقہ پر ہوتا ہے جسے کہا جاتا ہے۔

معلومات کو آؤٹ پٹ کرنے کے لیے، ہم FMZ پلیٹ فارم استعمال کرتے ہیں۔LogفنکشنLogفنکشن متعدد پیرامیٹرز میں گزر سکتا ہے اور پھر انہیں FMZ پلیٹ فارم کے "Debug Tool" یا "Real Trading" صفحہ کے لاگ ایریا میں آؤٹ پٹ کر سکتا ہے "Debug Tool" صفحہ ہماری جانچ کے لیے اہم آلہ ہوگا۔

eth_getBalance

ایتھریمeth_getBalanceEthereum پر کسی ایڈریس کے ETH بیلنس کے بارے میں استفسار کرنے کے لیے یہ طریقہ استعمال کیا جاتا ہے۔

پتہ جس سے استفسار کیا جائے۔
ٹیگ، عام طور پر "تازہ ترین"۔

آئیے Ethereum کے بانی کو چیک کریں۔V神ETH والیٹ ایڈریس، معلوم پتے ہیں:0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045。


            javascript
            
            
function main() {
    let ethBalance = exchange.IO("api", "eth", "eth_getBalance", "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045", "latest")
    Log("ethBalance:", ethBalance)
}

محافظ کو تعینات کیا گیا ہے (شکل میں: linux/amd64 ...) اور ایکسچینج آبجیکٹ کو ترتیب دیا گیا ہے (تصویر میں: Web3 ٹیسٹ ڈیبگنگ ٹول میں کوڈ کی جانچ کریں:

اس کوڈ کو چلانے اور نتائج ظاہر کرنے کے لیے "Execute" بٹن پر کلک کریں:

ethBalance: 0x117296558f185bbc4c6

Logفنکشن پرنٹ کرتا ہے۔ethBalanceمتغیر اقدار ہیں:0x117296558f185bbc4c6، جو ایک تار کی قسم ہے۔ ہاںہیکسا ڈیسیمل قدر میں ETH بیلنسکی طرف سےweiایک یونٹ کے طور پر،1e18 wei1 ہےETH. لہذا، اسے پڑھنے کے قابل اعشاریہ ETH بیلنس میں تبدیل کرنے کی ضرورت ہے۔

مرضیethBalanceپڑھنے کے قابل ڈیٹا میں تبدیل کریں:


            javascript
            
            
function main() {
    let ethBalance = exchange.IO("api", "eth", "eth_getBalance", "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045", "latest")
    Log("ethBalance:", ethBalance)
    
    // 将ethBalance转换为可读的数据
    let vitalikEthBalance = parseInt(ethBalance.substring(2), 16) / 1e18
    Log("vitalikEthBalance:", vitalikEthBalance)
}

سب سے اوپرhttps://etherscan.io/استفسار:

تاہم، اس پروسیسنگ میں خود زبان کی درستگی کی وجہ سے انحراف ہوگا، لہذا FMZ پلیٹ فارم میں ڈیٹا پر کارروائی کرنے کے لیے دو بلٹ ان فنکشنز ہیں:

BigInt: ایک ہیکساڈیسیمل سٹرنگ کو BigInt آبجیکٹ میں تبدیل کریں۔
بگ ڈیسیمل: عددی قسم کی آبجیکٹ کو بگ ڈیسیمل آبجیکٹ میں تبدیل کریں جس پر کام کیا جا سکتا ہے۔

کوڈ کو دوبارہ ایڈجسٹ کریں:


            javascript
            
            
function main() {
    let ethBalance = exchange.IO("api", "eth", "eth_getBalance", "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045", "latest")

    // ETH的精度单位为1e18
    let ethDecimal = 18
    Log("vitalikEthBalance:", Number((BigDecimal(BigInt(ethBalance)) / BigDecimal(Math.pow(10, ethDecimal))).toString()))
}

vitalikEthBalance: 5149.6244846875215

eth_chainId

eth_chainIdاورnet_versionاستعمال ایک جیسے ہیں، لہذا ہم نے ان کا ایک ساتھ تجربہ کیا۔ دونوں فنکشنز بلاکچین کی ID واپس کرتے ہیں جس سے موجودہ RPC نوڈ جڑا ہوا ہے۔net_versionڈیسیمل آئی ڈی لوٹاتا ہے۔eth_chainIdہیکسا ڈیسیمل ID لوٹاتا ہے۔

نیٹ ورک کا نام سلسلہ ID سے مطابقت رکھتا ہے۔


            desc
            
            
1 - ethereum mainnet
2 - morden testnet (deprecated)
3 - ropsten testnet
4 - rinkeby testnet
5 - goerli testnet
11155111 - sepolia testnet
10 - optimism mainnet
69 - optimism kovan testnet
42 - kovan testnet
137 - matic/polygon mainnet
80001 - matic/polygon mumbai testnet
250 - fantom mainnet
100 - xdai mainnet
56 - bsc mainnet

تشکیل شدہ ایتھریم ٹیسٹ نیٹ ورک کا استعمال کریں۔goerliنوڈ ٹیسٹ:


            javascript
            
            
function main() {
    let netVersionId = exchange.IO("api", "eth", "net_version")
    let ethChainId = exchange.IO("api", "eth", "eth_chainId")

    Log("netVersionId:", netVersionId)
    Log("ethChainId:", ethChainId, " ，转换：", parseInt(ethChainId.substring(2), 16))
}

eth_gasPrice

کال کریں۔eth_gasPriceموجودہ سلسلہ سے استفسار کرنے کا طریقہgas price。


            javascript
            
            
function toAmount(s, decimals) {
    return Number((BigDecimal(BigInt(s)) / BigDecimal(Math.pow(10, decimals))).toString())
}

function main() {
    let gasPrice = exchange.IO("api", "eth", "eth_gasPrice")
    Log("gasPrice:", gasPrice, " ，转换：", toAmount(gasPrice, 0))
}

یہاں ہم ایک ہیکساڈیسیمل سٹرنگ کو پڑھنے کے قابل قدر میں تبدیل کرنے کے لیے ایک فنکشن لکھتے ہیں۔toAmount. ایک اور بات قابل غور ہے کہ گیس پرائس کی اکائی ہے۔wei، تو پیرامیٹرdecimalsمتعلقہ اصل پیرامیٹر کو 0 کے طور پر پاس کیا جا سکتا ہے۔

eth_blockNumbe

eth_blockNumbeبلاک کی اونچائی کے بارے میں استفسار کرنے کے لیے استعمال کیا جاتا ہے۔


            javascript
            
            
function toAmount(s, decimals) {
    return Number((BigDecimal(BigInt(s)) / BigDecimal(Math.pow(10, decimals))).toString())
}

function main() {
    let blockNumber = exchange.IO("api", "eth", "eth_blockNumber")
    Log(toAmount(blockNumber, 0))
}

ڈیبگر میں چلائیں:

https://etherscan.io/استفسار پر:

eth_getBlockByNumber

بلاک کی معلومات سے استفسار کریں۔


            javascript
            
            
function main() {
    let blockNumber = exchange.IO("api", "eth", "eth_blockNumber")    
    Log(blockNumber)
    let blockMsg = exchange.IO("api", "eth", "eth_getBlockByNumber", blockNumber, true)
    Log(typeof(blockMsg), blockMsg)
    
    // 由于Log输出的内容过多，会自动截断，所以遍历返回的区块信息各个字段，逐个打印
    for (let key in blockMsg) {
        Log("key:", key, ", val:", blockMsg[key])
    }
}

درج ذیل معلومات کو "ڈیبگ ٹول" میں انجام دے کر حاصل کیا جا سکتا ہے:

معاہدے کی معلومات پڑھیں

ایتھرئم پر سمارٹ کنٹریکٹ ایپلی کیشنز کی ایک بڑی تعداد چل رہی ہے۔ENSان میں سے ایک ہے.ENS, یعنی Ethereum Name Service، Ethereum blockchain پر مبنی ایک विकेंद्रीकृत ڈومین نام ریزولوشن سروس ہے۔
ٹیوٹوریل کی وہ مثال یاد رکھیں جہاں ہم نے Ethereum کے بانی Vitalik Buterin کے بٹوے کے بیلنس کے بارے میں سوال کیا تھا؟ Vitalik کے بٹوے کے پتوں میں سے ایک یہ ہے:0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045. تو ہم اس ایڈریس کو کیسے جانتے ہیں؟ اصل میں، کے ذریعےENSسمارٹ معاہدہ، ایک بدیہی نام کا استعمال کرتے ہوئےvitalik.eth(vitalik Vitalik کا نام ہے) استفسار کرنے کے لیے۔

اس باب میں درج ذیل مواد Ethereum مین نیٹ ورک ماحول کا استعمال کرتے ہیں۔ENSدستاویز سے پتہ چلتا ہے کہ ایتھرئم ڈومین نام کا استفسار کیا جانا ضروری ہے۔Hashing Namesکے لیے درج ذیل کوڈ کا استعمال کریں۔vitalik.ethنام پر کارروائی ہوتی ہے۔


            javascript
            
            
function nameHash(name) {
    if (name == "") {
        return "0000000000000000000000000000000000000000000000000000000000000000"
    } else {
        let arr = name.split(".")
        let label = arr[0]
        
        arr.shift()
        let remainder = arr.join(".")
        return Encode("sha3.keccak256", "hex", "hex", nameHash(remainder) + Encode("sha3.keccak256", "raw", "hex", label))
    }
}

مندرجہ بالا کوڈ کی مثال میں، ہم ایک اور غیر مانوس فنکشن دیکھتے ہیں۔Encodeیہ فنکشن FMZ پلیٹ فارم کا API فنکشن ہے، جو خاص طور پر FMZ پلیٹ فارم پر انکوڈنگ آپریشنز کو انجام دینے کے لیے استعمال ہوتا ہے، یہ فنکشن متعدد انکوڈنگ طریقوں اور متعدد ہیش الگورتھم کو سپورٹ کرتا ہے۔


            
            
            
Encode(algo, inputFormat, outputFormat, data, keyFormat, key string)

ENS دستاویزات کے مطابق استعمال کریں۔sha3.keccak256الگورتھم ڈیٹا پر کارروائی کرتے ہیں۔

کال کریں۔nameHashافعال، مثال کے طور پر:Log(nameHash("vitalik.eth"))، ہم حاصل کر سکتے ہیں:ee6c4522aab0003e8d14cd40a6af439055fd2577951148c14b6cea9a53475835، آپ کو "0x" سابقہ شامل کرنے کی ضرورت ہے۔0xee6c4522aab0003e8d14cd40a6af439055fd2577951148c14b6cea9a53475835ENS سمارٹ کنٹریکٹ کے طور پرresolverطریقہ کار کے پیرامیٹرز۔


            javascript
            
            
let ensNode = "0x" + nameHash("vitalik.eth")    // 准备好调用resolver方法的参数ensNode

ENS دستاویز کے مطابق، ENS سمارٹ کنٹریکٹ کی درخواست کا معاہدہ کا پتہ ہے:0x00000000000C2E074eC69A0dFb2997BA6C7d2e1e. سمارٹ کنٹریکٹ کو کال کرنے میںresolverاس سے پہلے کہ ہم آگے بڑھیں، ہمیں معاہدہ تیار کرنے کی ضرورت ہے۔ABI。

ABI رجسٹر کرنا

یہ جاننے کے بعد، میں مدد نہیں کر سکتا لیکن پوچھ سکتا ہوں، سمارٹ کنٹریکٹ کیا ہے؟ABIاونی کپڑا۔


            desc
            
            
ABI，即应用程序二进制接口（Application Binary Interface），是智能合约与外部世界进行通信的接口标准。
智能合约的 ABI 定义了合约的函数接口、参数类型、返回值等信息，以及调用合约的方式和参数传递方式等规范。

智能合约的 ABI 通常以 JSON 格式存储，包含以下信息：

合约的函数接口：函数名、参数列表、返回值等信息。
函数参数类型：如 uint256、bool、string 等。
函数的输入参数和输出参数的编码方式：智能合约使用一种称为 Solidity ABI 的编码方式来编码函数的输入参数和输出参数，
以便与以太坊网络进行交互。
在以太坊网络中，使用智能合约的 ABI 来调用合约的函数。当需要调用合约函数时，需要提供函数名和函数参数，以及将函数参数按照 ABI 编码方式编码后的字节码。
以太坊节点会将这些信息打包成一笔交易，并将交易发送到以太坊网络中执行。

智能合约的 ABI 在 Solidity 语言中可以通过 interface 关键字来定义。以太坊开发工具如 Remix IDE、Truffle 等也提供了 ABI 编辑和生成工具，
使得开发者可以方便地创建和使用智能合约的 ABI。

ENS ABI سے درج ذیل کو نکالیں:resolverمکمل ABI میں بھی استعمال کیا جا سکتا ہے۔https://etherscan.io/آپ GitHub پر معاہدے کے ABI سے استفسار کر سکتے ہیں، یا دوسرے ذرائع سے ABI حاصل کر سکتے ہیں (مثال کے طور پر، متعلقہ پروجیکٹ دستاویزات)۔


            javascript
            
            
let abiENS_resolver = `[{"constant":true,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"}],"name":"resolver","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"}]`

یہاں ہمیں FMZ پلیٹ فارم پر کال کرنے کا ایک نیا طریقہ سیکھنا ہے۔exchange.IO("abi", address, abiContent)ABI رجسٹر کرنے کے لیے یہ طریقہ استعمال کریں،addressپیرامیٹر سمارٹ کنٹریکٹ کا پتہ ہے۔abiContentپیرامیٹر متعلقہ سمارٹ کنٹریکٹ ABI (سٹرنگ) ہے۔


            javascript
            
            
let abiENS_resolver = `[{"constant":true,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"}],"name":"resolver","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"}]`
exchange.IO("abi", "0x00000000000C2E074eC69A0dFb2997BA6C7d2e1e", abiENS_resolver)  // 0x00000000000C2E074eC69A0dFb2997BA6C7d2e1e 是在以太坊主网上部署的ENS智能合约的地址

سمارٹ معاہدے کے طریقوں کو کال کرنا

اگلا، آپ ENS سمارٹ کنٹریکٹ کو کال کر سکتے ہیں۔resolverطریقہ، جو واپس آتا ہےENS: Public Resolverمعاہدے کا پتہ۔


            javascript
            
            
let resolverAddress = exchange.IO("api", "0x00000000000C2E074eC69A0dFb2997BA6C7d2e1e", "resolver", ensNode)

استعمال کریںENS: Public ResolverمعاہدہaddrVitalik کے بٹوے کا پتہ حاصل کرنے کا طریقہ۔ کال کرناENS: Public Resolverمعاہدے کو اب بھی پہلے ABI رجسٹر کرنے کی ضرورت ہے۔ اس سمارٹ کنٹریکٹ کی ABI معلومات اب بھی پر مل سکتی ہے۔https://etherscan.io/حاصل کریں۔


            javascript
            
            
let abiENSPublicResolver = `[{"inputs":[{"internalType":"contract ENS","name":"_ens","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"node","type":"bytes32"},{"indexed":true,"internalType":"uint256","name":"contentType","type":"uint256"}],"name":"ABIChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"node","type":"bytes32"},{"indexed":false,"internalType":"address","name":"a","type":"address"}],"name":"AddrChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"node","type":"bytes32"},{"indexed":false,"internalType":"uint256","name":"coinType","type":"uint256"},{"indexed":false,"internalType":"bytes","name":"newAddress","type":"bytes"}],"name":"AddressChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"node","type":"bytes32"},{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"target","type":"address"},{"indexed":false,"internalType":"bool","name":"isAuthorised","type":"bool"}],"name":"AuthorisationChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"node","type":"bytes32"},{"indexed":false,"internalType":"bytes","name":"hash","type":"bytes"}],"name":"ContenthashChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"node","type":"bytes32"},{"indexed":false,"internalType":"bytes","name":"name","type":"bytes"},{"indexed":false,"internalType":"uint16","name":"resource","type":"uint16"},{"indexed":false,"internalType":"bytes","name":"record","type":"bytes"}],"name":"DNSRecordChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"node","type":"bytes32"},{"indexed":false,"internalType":"bytes","name":"name","type":"bytes"},{"indexed":false,"internalType":"uint16","name":"resource","type":"uint16"}],"name":"DNSRecordDeleted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"node","type":"bytes32"}],"name":"DNSZoneCleared","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"node","type":"bytes32"},{"indexed":true,"internalType":"bytes4","name":"interfaceID","type":"bytes4"},{"indexed":false,"internalType":"address","name":"implementer","type":"address"}],"name":"InterfaceChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"node","type":"bytes32"},{"indexed":false,"internalType":"string","name":"name","type":"string"}],"name":"NameChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"node","type":"bytes32"},{"indexed":false,"internalType":"bytes32","name":"x","type":"bytes32"},{"indexed":false,"internalType":"bytes32","name":"y","type":"bytes32"}],"name":"PubkeyChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"node","type":"bytes32"},{"indexed":true,"internalType":"string","name":"indexedKey","type":"string"},{"indexed":false,"internalType":"string","name":"key","type":"string"}],"name":"TextChanged","type":"event"},{"constant":true,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"uint256","name":"contentTypes","type":"uint256"}],"name":"ABI","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"bytes","name":"","type":"bytes"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"}],"name":"addr","outputs":[{"internalType":"address payable","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"uint256","name":"coinType","type":"uint256"}],"name":"addr","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"},{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"authorisations","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"}],"name":"clearDNSZone","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"}],"name":"contenthash","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"bytes32","name":"name","type":"bytes32"},{"internalType":"uint16","name":"resource","type":"uint16"}],"name":"dnsRecord","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"bytes32","name":"name","type":"bytes32"}],"name":"hasDNSRecords","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"bytes4","name":"interfaceID","type":"bytes4"}],"name":"interfaceImplementer","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes[]","name":"data","type":"bytes[]"}],"name":"multicall","outputs":[{"internalType":"bytes[]","name":"results","type":"bytes[]"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"}],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"}],"name":"pubkey","outputs":[{"internalType":"bytes32","name":"x","type":"bytes32"},{"internalType":"bytes32","name":"y","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"uint256","name":"contentType","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"setABI","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"uint256","name":"coinType","type":"uint256"},{"internalType":"bytes","name":"a","type":"bytes"}],"name":"setAddr","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"address","name":"a","type":"address"}],"name":"setAddr","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"address","name":"target","type":"address"},{"internalType":"bool","name":"isAuthorised","type":"bool"}],"name":"setAuthorisation","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"bytes","name":"hash","type":"bytes"}],"name":"setContenthash","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"setDNSRecords","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"bytes4","name":"interfaceID","type":"bytes4"},{"internalType":"address","name":"implementer","type":"address"}],"name":"setInterface","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"string","name":"name","type":"string"}],"name":"setName","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"bytes32","name":"x","type":"bytes32"},{"internalType":"bytes32","name":"y","type":"bytes32"}],"name":"setPubkey","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"string","name":"key","type":"string"},{"internalType":"string","name":"value","type":"string"}],"name":"setText","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"bytes4","name":"interfaceID","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"string","name":"key","type":"string"}],"name":"text","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"}]`
exchange.IO("abi", resolverAddress, abiENSPublicResolver)

آخری کالENS: Public Resolverمعاہدہaddrطریقہ، پیرامیٹرز اب بھی ہیںensNode。


            javascript
            
            
let vitalikAddress = exchange.IO("api", resolverAddress, "addr", ensNode)
Log("vitalikAddress:", vitalikAddress)

لاگ فنکشن آؤٹ پٹ:


            run
            
            
vitalikAddress: 0xd8da6bf26964af9d7eed9e03e53415d37aa96045

ENS کال کرنے کے لیے مکمل کوڈ


            javascript
            
            
function nameHash(name) {
    if (name == "") {
        return "0000000000000000000000000000000000000000000000000000000000000000"
    } else {
        let arr = name.split(".")
        let label = arr[0]
        
        arr.shift()
        let remainder = arr.join(".")
        return Encode("sha3.keccak256", "hex", "hex", nameHash(remainder) + Encode("sha3.keccak256", "raw", "hex", label))
    }
}

function main() {
    // 计算名称
    let ensNode = "0x" + nameHash("vitalik.eth")

    // 注册ENS合约
    let abiENS_resolver = `[{"constant":true,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"}],"name":"resolver","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"}]`
    exchange.IO("abi", "0x00000000000C2E074eC69A0dFb2997BA6C7d2e1e", abiENS_resolver)
    let resolverAddress = exchange.IO("api", "0x00000000000C2E074eC69A0dFb2997BA6C7d2e1e", "resolver", ensNode)
    
    // 注册ENS Public Resolver合约
    let abiENSPublicResolver = `[{"inputs":[{"internalType":"contract ENS","name":"_ens","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"node","type":"bytes32"},{"indexed":true,"internalType":"uint256","name":"contentType","type":"uint256"}],"name":"ABIChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"node","type":"bytes32"},{"indexed":false,"internalType":"address","name":"a","type":"address"}],"name":"AddrChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"node","type":"bytes32"},{"indexed":false,"internalType":"uint256","name":"coinType","type":"uint256"},{"indexed":false,"internalType":"bytes","name":"newAddress","type":"bytes"}],"name":"AddressChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"node","type":"bytes32"},{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"target","type":"address"},{"indexed":false,"internalType":"bool","name":"isAuthorised","type":"bool"}],"name":"AuthorisationChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"node","type":"bytes32"},{"indexed":false,"internalType":"bytes","name":"hash","type":"bytes"}],"name":"ContenthashChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"node","type":"bytes32"},{"indexed":false,"internalType":"bytes","name":"name","type":"bytes"},{"indexed":false,"internalType":"uint16","name":"resource","type":"uint16"},{"indexed":false,"internalType":"bytes","name":"record","type":"bytes"}],"name":"DNSRecordChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"node","type":"bytes32"},{"indexed":false,"internalType":"bytes","name":"name","type":"bytes"},{"indexed":false,"internalType":"uint16","name":"resource","type":"uint16"}],"name":"DNSRecordDeleted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"node","type":"bytes32"}],"name":"DNSZoneCleared","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"node","type":"bytes32"},{"indexed":true,"internalType":"bytes4","name":"interfaceID","type":"bytes4"},{"indexed":false,"internalType":"address","name":"implementer","type":"address"}],"name":"InterfaceChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"node","type":"bytes32"},{"indexed":false,"internalType":"string","name":"name","type":"string"}],"name":"NameChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"node","type":"bytes32"},{"indexed":false,"internalType":"bytes32","name":"x","type":"bytes32"},{"indexed":false,"internalType":"bytes32","name":"y","type":"bytes32"}],"name":"PubkeyChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"node","type":"bytes32"},{"indexed":true,"internalType":"string","name":"indexedKey","type":"string"},{"indexed":false,"internalType":"string","name":"key","type":"string"}],"name":"TextChanged","type":"event"},{"constant":true,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"uint256","name":"contentTypes","type":"uint256"}],"name":"ABI","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"bytes","name":"","type":"bytes"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"}],"name":"addr","outputs":[{"internalType":"address payable","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"uint256","name":"coinType","type":"uint256"}],"name":"addr","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"},{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"authorisations","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"}],"name":"clearDNSZone","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"}],"name":"contenthash","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"bytes32","name":"name","type":"bytes32"},{"internalType":"uint16","name":"resource","type":"uint16"}],"name":"dnsRecord","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"bytes32","name":"name","type":"bytes32"}],"name":"hasDNSRecords","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"bytes4","name":"interfaceID","type":"bytes4"}],"name":"interfaceImplementer","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes[]","name":"data","type":"bytes[]"}],"name":"multicall","outputs":[{"internalType":"bytes[]","name":"results","type":"bytes[]"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"}],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"}],"name":"pubkey","outputs":[{"internalType":"bytes32","name":"x","type":"bytes32"},{"internalType":"bytes32","name":"y","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"uint256","name":"contentType","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"setABI","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"uint256","name":"coinType","type":"uint256"},{"internalType":"bytes","name":"a","type":"bytes"}],"name":"setAddr","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"address","name":"a","type":"address"}],"name":"setAddr","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"address","name":"target","type":"address"},{"internalType":"bool","name":"isAuthorised","type":"bool"}],"name":"setAuthorisation","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"bytes","name":"hash","type":"bytes"}],"name":"setContenthash","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"setDNSRecords","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"bytes4","name":"interfaceID","type":"bytes4"},{"internalType":"address","name":"implementer","type":"address"}],"name":"setInterface","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"string","name":"name","type":"string"}],"name":"setName","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"bytes32","name":"x","type":"bytes32"},{"internalType":"bytes32","name":"y","type":"bytes32"}],"name":"setPubkey","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"string","name":"key","type":"string"},{"internalType":"string","name":"value","type":"string"}],"name":"setText","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"bytes4","name":"interfaceID","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[{"internalType":"bytes32","name":"node","type":"bytes32"},{"internalType":"string","name":"key","type":"string"}],"name":"text","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"}]`
    exchange.IO("abi", resolverAddress, abiENSPublicResolver)
    let vitalikAddress = exchange.IO("api", resolverAddress, "addr", ensNode)
    Log("vitalikAddress:", vitalikAddress)
}

ETH بھیجیں۔

پچھلے کورس کے ابواب میں، ہم نے سیکھا ہے کہ کنفیگر شدہ ایکسچینج آبجیکٹ کے لیے پرائیویٹ کیز کو کنفیگر کرنا ہے، ہم اس پرائیویٹ کلید کے مطابق بٹوے کا پتہ کیسے جانتے ہیں؟ FMZ پر دستیاب ہے۔exchange.IO("address")فنکشن کنفیگر شدہ پرائیویٹ کلید کے مطابق والیٹ ایڈریس حاصل کرتا ہے۔

چونکہ اس باب کے مندرجہ ذیل مواد استعمال ہوتے ہیں۔Goerliنیٹ ورک ماحول کی جانچ کریں، لہذا میں جو نوڈ استعمال کرتا ہوں وہ ہے:https://goerli.infura.io/v3/*******، Infura ہر رجسٹرڈ صارف کو مختلف نوڈ ایڈریس تفویض کرتا ہے۔*******مخصوص مواد پوشیدہ ہے۔


            javascript
            
            
function main() {
    let walletAddress = exchange.IO("address")
    Log("测试网 goerli 钱包地址：", walletAddress)
}

ایک بار جب آپ کو اپنے بٹوے کا پتہ معلوم ہو جائے تو، آپ Ethereum کا RPC طریقہ استعمال کر سکتے ہیں۔eth_getTransactionCountبٹوے کے پتے کی لین دین کی گنتی سے استفسار کریں۔ یہ شمار بہت عام طور پر Ethereum میں استعمال ہوتا ہے، درحقیقت، رقم کی منتقلی کے وقت اسے پاس کرنے کی ضرورت ہوتی ہے۔nonceپیرامیٹرز،ایتھریم میں، nonce ایک نمبر ہے جو اس بات کو یقینی بنانے کے لیے استعمال کیا جاتا ہے کہ ہر ٹرانزیکشن منفرد ہے۔ یہ ایک بڑھتی ہوئی تعداد ہے جو ہر بار جب نیا لین دین بھیجا جاتا ہے تو خود بخود بڑھ جاتا ہے۔ اس لیے، جب آپ کسی سمارٹ کنٹریکٹ پر ٹرانزیکشن بھیجتے ہیں، تو آپ کو اس بات کو یقینی بنانے کے لیے کہ لین دین منفرد اور صحیح ترتیب میں ہے، ایک نونس فراہم کرنے کی ضرورت ہے۔ کچھ ڈیٹا اور دستاویزات میں ہم تلاش کر سکتے ہیں:

https://goethereumbook.org/en/

گو زبان میں Ethereum لائبریری یہ ہے۔PendingNonceAtفنکشن دراصل کال کرتا ہے۔eth_getTransactionCountطریقہ پچھلے کورس میں، ہم نے RPC طریقوں کو کال کرنے کا طریقہ بھی سیکھا ہے، ہم اسے دوبارہ یہاں استعمال کریں گے۔exchange.IO("api", "eth", ...)فنکشن


            javascript
            
            
function toAmount(s, decimals) {
    return Number((BigDecimal(BigInt(s)) / BigDecimal(Math.pow(10, decimals))).toString())
}

function main() {
    let walletAddress = exchange.IO("address")
    Log("测试网 goerli 钱包地址：", walletAddress)

    /**
    * eth_getTransactionCount
    * @param address - string - The address from which the transaction count to be checked.
    * @param blockNumber - string - The block number as a string in hexadecimal format or tags.
    * @returns The integer of the number of transactions sent from an address encoded as hexadecimal.
    */
    let nonce = exchange.IO("api", "eth", "eth_getTransactionCount", walletAddress, "pending")
    Log("钱包地址：", walletAddress, "当前的 nonce：", nonce, "，转换为10进制：", toAmount(nonce, 0))
}

منتقلی کے عمل کی وضاحت کرنے سے پہلے، آئیے مختصراً کچھ تصورات کو سمجھیں جب Ethereum پر رقم کی منتقلی کرتے ہوئے، ETH ٹوکن کی ایک خاص مقدار استعمال کی جائے گی (بطور گیس کی فیس)۔ گیس کی فیس کا تعین دو پیرامیٹرز سے کیا جاتا ہے:

gasPrice

تاہم، Ethereum نیٹ ورک پر گیس کی فیسیں مارکیٹ کی طلب اور صارفین کی ادائیگی کے لیے تیار ہونے کی بنیاد پر ہمیشہ اتار چڑھاؤ کا شکار رہتی ہیں، اس لیے کوڈ میں گیس کی ایک مقررہ فیس لکھنا بعض اوقات مثالی نہیں ہوتا ہے۔ جو کچھ ہم نے پہلے سیکھا ہے اسے ہم استعمال کر سکتے ہیں۔eth_gasPriceطریقہ، جو گیس کی اوسط قیمت حاصل کر سکتا ہے۔
gasLimit

معیاری ایتھر کی منتقلی کے لیے گیس کی حد 21,000 یونٹ ہے۔

سمجھ گیاnonce，gasPrice，gasLimitان تصورات کے ساتھ، آپ منتقلی کی جانچ کر سکتے ہیں۔ ایک بہت ہی آسان اور استعمال میں آسان ٹرانسفر فنکشن FMZ پر شامل ہے۔


            javascript
            
            
exchange.IO("api", "eth", "send", toAddress, toAmount)

جب منتقلی کے لیے استعمال کیا جاتا ہے،exchange.IOتیسرا پیرامیٹر ہمیشہ "بھیجیں" ہوتا ہے۔toAddressپیرامیٹر وہ پتہ ہے جو منتقلی کے دوران ETH وصول کرتا ہے۔toAmountETH کی رقم منتقل کی گئی۔

nonce，gasPrice，gasLimitیہ پیرامیٹرز FMZ پر پہلے سے طے شدہ طور پر سسٹم کے ذریعہ خودکار طور پر حاصل کردہ اقدار کو استعمال کرسکتے ہیں۔ آپ یہ بھی بتا سکتے ہیں:


            javascript
            
            
exchange.IO("api", "eth", "send", toAddress, toAmount, {gasPrice: 5000000000, gasLimit: 21000, nonce: 100})

اگلا، ہم ٹیسٹ نیٹ ورک goerli پر ایک مخصوص ایڈریس پر ETH کی ایک خاص مقدار منتقل کرتے ہیں:


            javascript
            
            
function toInnerAmount(s, decimals) {
    return (BigDecimal(s)*BigDecimal(Math.pow(10, decimals))).toFixed(0)
}

function main() {
    let walletAddress = exchange.IO("address")
    Log("测试网 goerli 钱包地址：", walletAddress)

    let ret = exchange.IO("api", "eth", "send", "0x4D75a08E870674E68cAE611f329A27f446A66813", toInnerAmount(0.01, 18))
    return ret    // 返回Transaction Hash : 0xa6f9f51b00d8ae850b0f204380b59da98f4bbce34b813577d3d948f61de4734e
}

کیونکہ Ethereum کی منتقلی کی رقم کی اکائی ہے۔wei، آپ کو ایک حسب ضرورت فنکشن استعمال کرنے کی ضرورت ہے۔toInnerAmountکے طور پر عملدرآمدweiیونٹ کی قیمت۔

موجودhttps://etherscan.io/استفسار ٹرانزیکشن ہیش:0xa6f9f51b00d8ae850b0f204380b59da98f4bbce34b813577d3d948f61de4734e。

آپ ٹرانسفر ہیش سے استفسار کرنے کے لیے کوڈ بھی لکھ سکتے ہیں۔0xa6f9f51b00d8ae850b0f204380b59da98f4bbce34b813577d3d948f61de4734e، استعمال کریں۔eth_getTransactionReceiptاستفسار کرنے کا طریقہ۔


            javascript
            
            
function main() {
    let transHash = "0xa6f9f51b00d8ae850b0f204380b59da98f4bbce34b813577d3d948f61de4734e"
    let info = exchange.IO("api", "eth", "eth_getTransactionReceipt", transHash)
    return info
}

استفسار کے نتائج:


            run
            
            
{
	"cumulativeGasUsed": "0x200850",
	"effectiveGasPrice": "0x1748774421",
	"transactionHash": "0xa6f9f51b00d8ae850b0f204380b59da98f4bbce34b813577d3d948f61de4734e",
	"type": "0x0",
	"blockHash": "0x6bdde8b0f0453ecd24eecf7c634d65306f05511e0e8f09f9ed3f59eee2d06ac7",
	"contractAddress": null,
	"blockNumber": "0x868a50",
	"logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
	"gasUsed": "0x5208",
	"to": "0x4d75a08e870674e68cae611f329a27f446a66813",
	"status": "0x1",
	"transactionIndex": "0x23",
	"from": "0x6b3f11d807809b0b1e5e3243df04a280d9f94bf4",
	"logs": []
}

ہر فیلڈ کی تفصیل:


            desc
            
            
blockHash - 该交易所在区块的哈希值
blockNumber - 以十六进制编码的该交易所在区块的块号
contractAddress - 如果是合约创建，该合约的地址；否则为null
cumulativeGasUsed - 该交易在区块中执行时使用的总燃气量
effectiveGasPrice - 每单位燃气的总基础费用加小费
from - 发送者的地址
gasUsed - 该特定交易使用的燃气量
logs - 生成该交易的日志对象数组
  address - 生成该日志的地址
  topics - 0到4个32字节索引日志参数的数据数组。在Solidity中，第一个主题是事件签名的哈希值（例如Deposit（address，bytes32，uint256）），除非你使用匿名说明符声明该事件
  data - 日志的32字节非索引参数
  blockNumber - 该日志所在区块的块号
  transactionHash - 该日志创建时的交易哈希值。如果该日志处于待定状态，则为null
  transactionIndex - 该日志创建时的交易索引位置。如果该日志处于待定状态，则为null
  blockHash - 该日志所在区块的哈希值
  logIndex - 该日志在区块中的索引位置，以十六进制编码的整数。如果该日志处于待定状态，则为null
  removed - 如果该日志已被删除，则为true，由于链重组而被删除；如果是有效的日志，则为false
logsBloom - 用于检索相关日志的布隆过滤器
status - 以十六进制编码的值，它要么是1（成功），要么是0（失败）
to - 接收者的地址。如果是合约创建交易，则为null
transactionHash - 该交易的哈希值
transactionIndex - 以十六进制编码的该交易在区块中的索引位置
type - 值的类型

ایتھرئم سمارٹ کنٹریکٹ کو کال کرنا

ہم ہیںمعاہدے کی معلومات پڑھیںیہ سیکشن Vitalik کے بٹوے کا پتہ حاصل کرنے کے لیے Ethereum پر تعینات ENS معاہدے کے طریقہ کار کو کال کرنے کے لیے ایک مکمل مثال استعمال کرتا ہے۔ ان طریقوں کا تعلق ہے۔Readطریقے، ان طریقوں کو کال کرنا ضروری نہیں ہے۔gas(یاد ہے کہ ہم نے پہلے گیس کے بارے میں کیا بات کی تھی؟) اس سیکشن میں ہم Ethereum پر کچھ سمارٹ معاہدوں کو کال کریں گے۔Writeطریقہ اور ادائیگیgas. ان کارروائیوں کی تصدیق پورے نیٹ ورک پر ہر نوڈ اور کان کن کے ذریعے کی جائے گی اور بلاک چین کی حالت کو تبدیل کیا جائے گا۔

ERC20

ERC20 معاہدوں (ERC20 ٹوکن کنٹریکٹس) کے لیے، FMZ پلیٹ فارم ERC20 معاہدے کے ABI کو عام طور پر استعمال ہونے والے ABI کے طور پر درج کرتا ہے اور ABI کو رجسٹر کرنے کے مرحلے کو ختم کرتے ہوئے اسے براہ راست سسٹم میں بناتا ہے۔ ہم نے پچھلے ٹیوٹوریل میں ABI کے بارے میں بھی سیکھا ہے جب ہم ENS معاہدہ کے طریقہ کار کو کہتے ہیں، تو ہم سب سے پہلے ENS معاہدے کے ABI کو رجسٹر کرتے ہیں۔

ABI کو مزید واضح طور پر سمجھنے کے لیے، آپ اسے استعمال کرنے سے پہلے ERC20 کا ABI درج ذیل ہے:


            javascript
            
            
[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"guy","type":"address"},{"name":"wad","type":"uint256"}],"name":"approve","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"src","type":"address"},{"name":"dst","type":"address"},{"name":"wad","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"wad","type":"uint256"}],"name":"withdraw","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"dst","type":"address"},{"name":"wad","type":"uint256"}],"name":"transfer","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"deposit","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"},{"name":"","type":"address"}],"name":"allowance","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":true,"name":"src","type":"address"},{"indexed":true,"name":"guy","type":"address"},{"indexed":false,"name":"wad","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"src","type":"address"},{"indexed":true,"name":"dst","type":"address"},{"indexed":false,"name":"wad","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"dst","type":"address"},{"indexed":false,"name":"wad","type":"uint256"}],"name":"Deposit","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"src","type":"address"},{"indexed":false,"name":"wad","type":"uint256"}],"name":"Withdrawal","type":"event"}]

یہ سیکشن درج ذیل مواد استعمال کرتا ہے۔Goerliٹیسٹ نیٹ ماحول۔

balanceOf

اگلا، آئیے دوبارہ مشق کرتے ہیں کہ معاہدے کو کیسے کال کریں۔Readمعاہدہ کی معلومات کو پڑھنے اور ERC20 معاہدہ کو کال کرنے کا طریقہbalanceOfٹوکن بیلنس سے استفسار کرنے کا طریقہ،balanceOfطریقہ کار میں صرف ایک پیرامیٹر ہے، لیکن اس کا نام نہیں ہے قسم سے، ہم دیکھ سکتے ہیں کہ یہ ایک پتہ ہے (یعنی ٹوکن ایڈریس جس سے استفسار کیا جائے گا)۔ چونکہ واپس کیا گیا ڈیٹا ایک ٹوکن کی اکائیوں میں نہیں ہے، اس لیے تبادلوں کے لیے ٹوکن کی درستگی کا حساب ERC20 معاہدہ کے ذریعے لگایا جا سکتا ہے۔decimalsطریقہ حصول۔ ہم Ethereum testnet استعمال کرتے ہیں۔goerliاس کی جانچ کریں، اور نوٹ کریں کہ مختلف زنجیروں پر ٹوکن کنٹریکٹ ایڈریس مختلف ہو سکتا ہے۔


            javascript
            
            
function toAmount(s, decimals) {
    return Number((BigDecimal(BigInt(s)) / BigDecimal(Math.pow(10, decimals))).toString())
}

function main() {
    let walletAddress = exchange.IO("address")
    
    // goerli WETH address 
    let wethAddress = "0xB4FBF271143F4FBf7B91A5ded31805e42b2208d6"
    // goerli LINK address 
    let linkAddress = "0x326C977E6efc84E512bB9C30f76E30c160eD06FB"

    // 由于是ERC20合约，FMZ已经内置ABI注册，所以这里不用注册ERC20 ABI
    let wethDecimals = exchange.IO("api", wethAddress, "decimals")
    let linkDecimals = exchange.IO("api", linkAddress, "decimals")

    let wethBalance = exchange.IO("api", wethAddress, "balanceOf", walletAddress)
    let linkBalance = exchange.IO("api", linkAddress, "balanceOf", walletAddress)
    Log("WETH精度：", wethDecimals, "wethBalance:", toAmount(wethBalance, wethDecimals))
    Log("LINK精度：", linkDecimals, "linkBalance:", toAmount(linkBalance, linkDecimals))
}

مندرجہ بالا کوڈ کو چلا کر، آپ موجودہ والیٹ میں WETH اور LINK ٹوکن بیلنس کے بارے میں استفسار کر سکتے ہیں:

WETH درستگی: 18 wethBalance: 0
لنک کی درستگی: 18 لنک بیلنس: 51.41374973681053

deposit

آپ دیکھ سکتے ہیں کہ اس پرس میں WETH ٹوکن کا بیلنس 0 ہے۔ اس کے بعد، ہم WETH ٹوکن کے ERC20 سمارٹ کنٹریکٹ کے ساتھ بات چیت جاری رکھیں گے اس بار ہم رائٹ ٹائپ طریقہ کو کہتے ہیں:deposit。
depositآسان الفاظ میں، اس طریقہ کار کا کام ETH کی ایک مخصوص مقدار کو WETH میں تبدیل کرنا ہے۔depositطریقہ کار میں کوئی پیرامیٹرز نہیں ہیں (جس کا مشاہدہ ABI کو دیکھ کر کیا جا سکتا ہے)، اور طریقہ میں درج ذیل صفات ہیں:payableکے لیےtrueاس لیے، آپ کو ای ٹی ایچ کی رقم کا تعین کرنے کے لیے کال کرتے وقت ٹرانسفر ETH (پیی ایبل اماؤنٹ) رقم سیٹ کرنی ہوگی۔

سمارٹ کنٹریکٹ کے طریقوں کو کال کرتے وقت نوٹ کریں:
اگر کہلائے گئے طریقہ میں قابل ادائیگی وصف ہے، تو آپ کو طریقہ کے نام (exchange.IO فنکشن کا چوتھا پیرامیٹر) کے بعد ایک ٹرانسفر ETH ویلیو شامل کرنے کی ضرورت ہے، جو کہ عددی قسم یا سٹرنگ ویلیو ہو سکتی ہے۔


            javascript
            
            
function toAmount(s, decimals) {
    return Number((BigDecimal(BigInt(s)) / BigDecimal(Math.pow(10, decimals))).toString())
}

function toInnerAmount(s, decimals) {
    return (BigDecimal(s)*BigDecimal(Math.pow(10, decimals))).toFixed(0)
}

function main() {
    let walletAddress = exchange.IO("address")
    
    // goerli WETH address 
    let wethAddress = "0xB4FBF271143F4FBf7B91A5ded31805e42b2208d6"

    // 由于是ERC20合约，FMZ已经内置ABI注册，所以这里不用注册ERC20 ABI
    let wethDecimals = exchange.IO("api", wethAddress, "decimals")

    let wethBalance = exchange.IO("api", wethAddress, "balanceOf", walletAddress)
    Log("WETH精度：", wethDecimals, "wethBalance:", toAmount(wethBalance, wethDecimals))
    let ethBalance = exchange.IO("api", "eth", "eth_getBalance", walletAddress, "latest")
    Log("ETH精度：", 18, "ethBalance:", toAmount(ethBalance, 18))

    // 调用deposit方法，由于deposit是ERC20标准之外的方法，所以这里要注册这个方法的ABI
    let abiWETH = `[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"guy","type":"address"},{"name":"wad","type":"uint256"}],"name":"approve","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"src","type":"address"},{"name":"dst","type":"address"},{"name":"wad","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"wad","type":"uint256"}],"name":"withdraw","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"dst","type":"address"},{"name":"wad","type":"uint256"}],"name":"transfer","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"deposit","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"},{"name":"","type":"address"}],"name":"allowance","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":true,"name":"src","type":"address"},{"indexed":true,"name":"guy","type":"address"},{"indexed":false,"name":"wad","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"src","type":"address"},{"indexed":true,"name":"dst","type":"address"},{"indexed":false,"name":"wad","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"dst","type":"address"},{"indexed":false,"name":"wad","type":"uint256"}],"name":"Deposit","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"src","type":"address"},{"indexed":false,"name":"wad","type":"uint256"}],"name":"Withdrawal","type":"event"}]`
    exchange.IO("abi", wethAddress, abiWETH)

    let payableAmount = toInnerAmount(0.01, 18)
    let ret = exchange.IO("api", wethAddress, "deposit", payableAmount)
    Log("Transaction Hash:", ret)
}

WETH درستگی: 18 wethBalance: 0
ETH درستگی: 18 ایتھ بیلنس: 0.14333094664072302
Transaction Hash: 0xaf15b0b0e25a81eda583295e82b249e2d02e4eafebecc906470ccc2c89e23563

WETH اور ETH کے بیلنس کا دوبارہ سوال کریں:

WETH درستگی: 18 weth بیلنس: 0.01
ETH درستگی: 18 ایتھ بیلنس: 0.1333309358060905

کال کریں۔depositاس سے پہلےWETH0 ہے،ETH0.14333094664072302 ہے، کال کر رہا ہے۔depositکے بعدWETH0.01 ہے،ETHیہ 0.1333309358060905 ہے۔ آپ دیکھ سکتے ہیں کہ 0.01 کامیابی کے ساتھ رہا ہے۔ETHسے بدل دیا گیا۔WETH。

transfer

ERC20 ٹوکن کو بھی استعمال کرکے منتقل کیا جا سکتا ہے۔transferاس پتے پر منتقل کرنے کا طریقہ0x4D75a08E870674E68cAE611f329A27f446A668130.01 WETH ٹوکنز۔transferطریقہ کے دو پیرامیٹرز ہیں، پہلا پیرامیٹرdstمنتقلی وصول کنندہ کے بٹوے کا پتہ ہے، دوسرا پیرامیٹرwadیہ منتقلی کی رقم ہے۔


            javascript
            
            
function toAmount(s, decimals) {
    return Number((BigDecimal(BigInt(s)) / BigDecimal(Math.pow(10, decimals))).toString())
}

function toInnerAmount(s, decimals) {
    return (BigDecimal(s)*BigDecimal(Math.pow(10, decimals))).toFixed(0)
}

function waitMined (tx) {
    for (var i = 0 ; i < 10 ; i++) {
        Sleep(5000)
        let info = exchange.IO("api", "eth", "eth_getTransactionReceipt", tx)
        if (info && info.gasUsed) {
            Log(info)
            return true
        }
        Log('Transaction not yet mined', tx)
    }
    return false 
}

function main() {
    let walletAddress = exchange.IO("address")
    
    // goerli WETH address 
    let wethAddress = "0xB4FBF271143F4FBf7B91A5ded31805e42b2208d6"

    // 由于是ERC20合约，FMZ已经内置ABI注册，所以这里不用注册ERC20 ABI
    let wethDecimals = exchange.IO("api", wethAddress, "decimals")
    let wethBalance = exchange.IO("api", wethAddress, "balanceOf", walletAddress)
    Log("WETH精度：", wethDecimals, "wethBalance:", toAmount(wethBalance, wethDecimals))

    let dst = "0x4D75a08E870674E68cAE611f329A27f446A66813"
    let wad = toInnerAmount(0.01, wethDecimals)
    let tx = exchange.IO("api", wethAddress, "transfer", dst, wad)   
    Log("Transaction Hash:", tx)
    waitMined(tx)
    
    wethBalance = exchange.IO("api", wethAddress, "balanceOf", walletAddress)
    Log("WETH精度：", wethDecimals, "wethBalance:", toAmount(wethBalance, wethDecimals))
}

مندرجہ بالا مثال حسب ضرورت فنکشن کا استعمال کرتی ہے۔waitMinedدرحقیقت ہم اس فنکشن سے ناواقف نہیں ہیں۔eth_getTransactionReceiptطریقہ؟ اس waitMined کسٹم فنکشن کا کام پاس شدہ ٹرانزیکشن ہیش کے نتیجے کا انتظار کرنا ہے۔

اس WETH کی منتقلی کے لیے، دلچسپی رکھنے والے قارئین ٹرانزیکشن ہیش سے بھی استفسار کر سکتے ہیں۔0x2fafb62b548a1fffb0f3189429e3c5a4f57ddafb0acbc0678d8b3cf0a2f7c92cتفصیلات دیکھنے کے لیے (نوٹ کریں کہ یہ testnet goerli پر ہے)۔

withdraw

اس بار ہم نے ڈال دیا۔WETHتبادلہETH، استعمال کریں۔withdrawطریقہ، جس میں صرف ایک پیرامیٹر ہے۔wad، آسان الفاظ میں، یہ سیٹ کرنے کے لیے استعمال کیا جاتا ہے کہ کتنی ETH کا تبادلہ کرنا ہے۔


            javascript
            
            
function toAmount(s, decimals) {
    return Number((BigDecimal(BigInt(s)) / BigDecimal(Math.pow(10, decimals))).toString())
}

function toInnerAmount(s, decimals) {
    return (BigDecimal(s)*BigDecimal(Math.pow(10, decimals))).toFixed(0)
}

function main() {
    let walletAddress = exchange.IO("address")
    
    // goerli WETH address 
    let wethAddress = "0xB4FBF271143F4FBf7B91A5ded31805e42b2208d6"

    // 由于是ERC20合约，FMZ已经内置ABI注册，所以这里不用注册ERC20 ABI
    let wethDecimals = exchange.IO("api", wethAddress, "decimals")

    let wethBalance = exchange.IO("api", wethAddress, "balanceOf", walletAddress)
    Log("WETH精度：", wethDecimals, "wethBalance:", toAmount(wethBalance, wethDecimals))
    let ethBalance = exchange.IO("api", "eth", "eth_getBalance", walletAddress, "latest")
    Log("ETH精度：", 18, "ethBalance:", toAmount(ethBalance, 18))

    let abiWETH = `[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"guy","type":"address"},{"name":"wad","type":"uint256"}],"name":"approve","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"src","type":"address"},{"name":"dst","type":"address"},{"name":"wad","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"wad","type":"uint256"}],"name":"withdraw","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"dst","type":"address"},{"name":"wad","type":"uint256"}],"name":"transfer","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"deposit","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"},{"name":"","type":"address"}],"name":"allowance","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":true,"name":"src","type":"address"},{"indexed":true,"name":"guy","type":"address"},{"indexed":false,"name":"wad","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"src","type":"address"},{"indexed":true,"name":"dst","type":"address"},{"indexed":false,"name":"wad","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"dst","type":"address"},{"indexed":false,"name":"wad","type":"uint256"}],"name":"Deposit","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"src","type":"address"},{"indexed":false,"name":"wad","type":"uint256"}],"name":"Withdrawal","type":"event"}]`
    exchange.IO("abi", wethAddress, abiWETH)

    let wad = toInnerAmount(0.01, 18)
    let ret = exchange.IO("api", wethAddress, "withdraw", wad)
    Log("Transaction Hash:", ret)
}

Transaction Hash: 0x446423c841451a8d04428a075b556eb5564186b09926da915f5da1c9837d2af4

آپ اوپر کا کوڈ اور پچھلا دیکھ سکتے ہیں۔depositطریقہ کار کی مثالیں بنیادی طور پر ایک جیسی ہیں، سوائے اس کے کہ آخری مرحلے میں کہا گیا طریقہ تبدیل کر دیا گیا ہے۔withdrawکال کرنے سے پہلے:

WETH درستگی: 18 weth بیلنس: 0.01
ETH درستگی: 18 ایتھ بیلنس: 0.11322979983231546

دوبارہ سوال:

WETH درستگی: 18 wethBalance: 0
ETH درستگی: 18 ایتھ بیلنس: 0.1231207156449464

آپ اسے 0.01 دیکھ سکتے ہیں۔WETHواپس بدل گیا۔ETH。

Uniswap V3

Uniswap V3یہ ایک وکندریقرت تجارتی پروٹوکول ہے جسے کرپٹو کرنسیوں کی تجارت اور لیکویڈیٹی فراہمی کے لیے Ethereum blockchain پر بنایا گیا ہے۔ یہ سمارٹ معاہدوں کی ایک سیریز پر مشتمل ہے، بشمول بنیادی معاہدے، پول کنٹریکٹس، فیکٹری کنٹریکٹس، روٹنگ کنٹریکٹس وغیرہ۔

استعمال میںUniswapمندرجہ ذیل معاہدے بنیادی طور پر موجودہ زر مبادلہ کی قیمت کے بارے میں استفسار کرنے اور تبادلے کی کارروائیوں کو انجام دینے کے لیے استعمال کیے جاتے ہیں:

Router(روٹنگ کا معاہدہ)
یہ ایک معاہدہ ہے جو لین دین کو انجام دینے کے لیے استعمال کیا جاتا ہے، جو صارفین کو لین دین کے راستوں اور پیرامیٹرز کی وضاحت کر کے لین دین کی کارروائیوں کو انجام دینے کی اجازت دیتا ہے۔
Pool(پول معاہدہ)
پول کا معاہدہ ہے۔UniswapEthereum blockchain کا ایک اہم جزو جو مخصوص اثاثوں کے جوڑوں کے لیے لیکویڈیٹی کو ذخیرہ کرنے اور ان کا انتظام کرنے کے لیے استعمال ہوتا ہے۔ ہر اثاثہ جوڑے کے پاس ایک متعلقہ پول کنٹریکٹ ہوتا ہے، جس میں معلومات ہوتی ہیں جیسے کہ لیکویڈیٹی فراہم کنندہ کی طرف سے فراہم کردہ فنڈز، قیمت کی حد، فیس کی ترتیبات وغیرہ۔ پول کنٹریکٹ ٹرانزیکشنز پر کارروائی کرنے، فنڈ پول کی حیثیت کا حساب لگانے، اور لین دین کی آسانی سے عملدرآمد کو یقینی بنانے کے لیے ذمہ دار ہے۔
Factory(فیکٹری معاہدہ)
فیکٹری کے معاہدوں کو تخلیق اور انتظام کرنے کے لیے استعمال کیا جاتا ہے۔Uniswapپول کا معاہدہ۔ جب کوئی صارف ایک نیا اثاثہ جوڑا بنانا چاہتا ہے، تو وہ فیکٹری کنٹریکٹ کے ساتھ تعامل کرکے ایک نیا پول کنٹریکٹ لگاتا ہے۔ فیکٹری کنٹریکٹ پول کنٹریکٹ کی تخلیق اور ابتدا میں ہم آہنگی کا ذمہ دار ہے، صارفین کو متحرک طور پر نئے اثاثوں کے جوڑے بنانے کے قابل بناتا ہے۔

جو کچھ ہم نے پہلے سیکھا ہے اس کی بنیاد پر، آئیے جائزہ لیں کہ FMZ مقداری تجارتی پلیٹ فارم حکمت عملی کوڈ میں سمارٹ معاہدوں کو کیسے رجسٹر کیا جائے۔ABIہم نے پہلے ہی بتایا ہے کہ پچھلے کورسز میں اسمارٹ کنٹریکٹ کا ABI کیسے حاصل کیا جائے، اس لیے ہم اسے یہاں نہیں دہرائیں گے۔
تین رجسٹریشن کی ضرورت ہے۔Uniswapاسمارٹ معاہدےABI، مثال کے طور پر Ethereum mainnet کا استعمال کرتے ہوئے:


            javascript
            
            
var abiRoute = '[{"inputs":[{"internalType":"address","name":"_factoryV2","type":"address"},{"internalType":"address","name":"factoryV3","type":"address"},{"internalType":"address","name":"_positionManager","type":"address"},{"internalType":"address","name":"_WETH9","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"WETH9","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"approveMax","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"approveMaxMinusOne","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"approveZeroThenMax","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"approveZeroThenMaxMinusOne","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes","name":"data","type":"bytes"}],"name":"callPositionManager","outputs":[{"internalType":"bytes","name":"result","type":"bytes"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes[]","name":"paths","type":"bytes[]"},{"internalType":"uint128[]","name":"amounts","type":"uint128[]"},{"internalType":"uint24","name":"maximumTickDivergence","type":"uint24"},{"internalType":"uint32","name":"secondsAgo","type":"uint32"}],"name":"checkOracleSlippage","outputs":[],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes","name":"path","type":"bytes"},{"internalType":"uint24","name":"maximumTickDivergence","type":"uint24"},{"internalType":"uint32","name":"secondsAgo","type":"uint32"}],"name":"checkOracleSlippage","outputs":[],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"bytes","name":"path","type":"bytes"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMinimum","type":"uint256"}],"internalType":"struct IV3SwapRouter.ExactInputParams","name":"params","type":"tuple"}],"name":"exactInput","outputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"tokenIn","type":"address"},{"internalType":"address","name":"tokenOut","type":"address"},{"internalType":"uint24","name":"fee","type":"uint24"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMinimum","type":"uint256"},{"internalType":"uint160","name":"sqrtPriceLimitX96","type":"uint160"}],"internalType":"struct IV3SwapRouter.ExactInputSingleParams","name":"params","type":"tuple"}],"name":"exactInputSingle","outputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"bytes","name":"path","type":"bytes"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"uint256","name":"amountInMaximum","type":"uint256"}],"internalType":"struct IV3SwapRouter.ExactOutputParams","name":"params","type":"tuple"}],"name":"exactOutput","outputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"tokenIn","type":"address"},{"internalType":"address","name":"tokenOut","type":"address"},{"internalType":"uint24","name":"fee","type":"uint24"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"uint256","name":"amountInMaximum","type":"uint256"},{"internalType":"uint160","name":"sqrtPriceLimitX96","type":"uint160"}],"internalType":"struct IV3SwapRouter.ExactOutputSingleParams","name":"params","type":"tuple"}],"name":"exactOutputSingle","outputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"factory","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"factoryV2","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"getApprovalType","outputs":[{"internalType":"enum IApproveAndCall.ApprovalType","name":"","type":"uint8"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"token0","type":"address"},{"internalType":"address","name":"token1","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"amount0Min","type":"uint256"},{"internalType":"uint256","name":"amount1Min","type":"uint256"}],"internalType":"struct IApproveAndCall.IncreaseLiquidityParams","name":"params","type":"tuple"}],"name":"increaseLiquidity","outputs":[{"internalType":"bytes","name":"result","type":"bytes"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"token0","type":"address"},{"internalType":"address","name":"token1","type":"address"},{"internalType":"uint24","name":"fee","type":"uint24"},{"internalType":"int24","name":"tickLower","type":"int24"},{"internalType":"int24","name":"tickUpper","type":"int24"},{"internalType":"uint256","name":"amount0Min","type":"uint256"},{"internalType":"uint256","name":"amount1Min","type":"uint256"},{"internalType":"address","name":"recipient","type":"address"}],"internalType":"struct IApproveAndCall.MintParams","name":"params","type":"tuple"}],"name":"mint","outputs":[{"internalType":"bytes","name":"result","type":"bytes"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"previousBlockhash","type":"bytes32"},{"internalType":"bytes[]","name":"data","type":"bytes[]"}],"name":"multicall","outputs":[{"internalType":"bytes[]","name":"","type":"bytes[]"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"bytes[]","name":"data","type":"bytes[]"}],"name":"multicall","outputs":[{"internalType":"bytes[]","name":"","type":"bytes[]"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes[]","name":"data","type":"bytes[]"}],"name":"multicall","outputs":[{"internalType":"bytes[]","name":"results","type":"bytes[]"}],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"positionManager","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"pull","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"refundETH","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"selfPermit","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"nonce","type":"uint256"},{"internalType":"uint256","name":"expiry","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"selfPermitAllowed","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"nonce","type":"uint256"},{"internalType":"uint256","name":"expiry","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"selfPermitAllowedIfNecessary","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"selfPermitIfNecessary","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMin","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"}],"name":"swapExactTokensForTokens","outputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"uint256","name":"amountInMax","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"}],"name":"swapTokensForExactTokens","outputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amountMinimum","type":"uint256"},{"internalType":"address","name":"recipient","type":"address"}],"name":"sweepToken","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amountMinimum","type":"uint256"}],"name":"sweepToken","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amountMinimum","type":"uint256"},{"internalType":"uint256","name":"feeBips","type":"uint256"},{"internalType":"address","name":"feeRecipient","type":"address"}],"name":"sweepTokenWithFee","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amountMinimum","type":"uint256"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"feeBips","type":"uint256"},{"internalType":"address","name":"feeRecipient","type":"address"}],"name":"sweepTokenWithFee","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"int256","name":"amount0Delta","type":"int256"},{"internalType":"int256","name":"amount1Delta","type":"int256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"uniswapV3SwapCallback","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountMinimum","type":"uint256"},{"internalType":"address","name":"recipient","type":"address"}],"name":"unwrapWETH9","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountMinimum","type":"uint256"}],"name":"unwrapWETH9","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountMinimum","type":"uint256"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"feeBips","type":"uint256"},{"internalType":"address","name":"feeRecipient","type":"address"}],"name":"unwrapWETH9WithFee","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountMinimum","type":"uint256"},{"internalType":"uint256","name":"feeBips","type":"uint256"},{"internalType":"address","name":"feeRecipient","type":"address"}],"name":"unwrapWETH9WithFee","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"value","type":"uint256"}],"name":"wrapETH","outputs":[],"stateMutability":"payable","type":"function"},{"stateMutability":"payable","type":"receive"}]';
var abiPool = '[{\"inputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"int24\",\"name\":\"tickLower\",\"type\":\"int24\"},{\"indexed\":true,\"internalType\":\"int24\",\"name\":\"tickUpper\",\"type\":\"int24\"},{\"indexed\":false,\"internalType\":\"uint128\",\"name\":\"amount\",\"type\":\"uint128\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount0\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount1\",\"type\":\"uint256\"}],\"name\":\"Burn\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"int24\",\"name\":\"tickLower\",\"type\":\"int24\"},{\"indexed\":true,\"internalType\":\"int24\",\"name\":\"tickUpper\",\"type\":\"int24\"},{\"indexed\":false,\"internalType\":\"uint128\",\"name\":\"amount0\",\"type\":\"uint128\"},{\"indexed\":false,\"internalType\":\"uint128\",\"name\":\"amount1\",\"type\":\"uint128\"}],\"name\":\"Collect\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"sender\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint128\",\"name\":\"amount0\",\"type\":\"uint128\"},{\"indexed\":false,\"internalType\":\"uint128\",\"name\":\"amount1\",\"type\":\"uint128\"}],\"name\":\"CollectProtocol\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"sender\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount0\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount1\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"paid0\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"paid1\",\"type\":\"uint256\"}],\"name\":\"Flash\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint16\",\"name\":\"observationCardinalityNextOld\",\"type\":\"uint16\"},{\"indexed\":false,\"internalType\":\"uint16\",\"name\":\"observationCardinalityNextNew\",\"type\":\"uint16\"}],\"name\":\"IncreaseObservationCardinalityNext\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint160\",\"name\":\"sqrtPriceX96\",\"type\":\"uint160\"},{\"indexed\":false,\"internalType\":\"int24\",\"name\":\"tick\",\"type\":\"int24\"}],\"name\":\"Initialize\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"address\",\"name\":\"sender\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"int24\",\"name\":\"tickLower\",\"type\":\"int24\"},{\"indexed\":true,\"internalType\":\"int24\",\"name\":\"tickUpper\",\"type\":\"int24\"},{\"indexed\":false,\"internalType\":\"uint128\",\"name\":\"amount\",\"type\":\"uint128\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount0\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount1\",\"type\":\"uint256\"}],\"name\":\"Mint\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint8\",\"name\":\"feeProtocol0Old\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"uint8\",\"name\":\"feeProtocol1Old\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"uint8\",\"name\":\"feeProtocol0New\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"uint8\",\"name\":\"feeProtocol1New\",\"type\":\"uint8\"}],\"name\":\"SetFeeProtocol\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"sender\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"int256\",\"name\":\"amount0\",\"type\":\"int256\"},{\"indexed\":false,\"internalType\":\"int256\",\"name\":\"amount1\",\"type\":\"int256\"},{\"indexed\":false,\"internalType\":\"uint160\",\"name\":\"sqrtPriceX96\",\"type\":\"uint160\"},{\"indexed\":false,\"internalType\":\"uint128\",\"name\":\"liquidity\",\"type\":\"uint128\"},{\"indexed\":false,\"internalType\":\"int24\",\"name\":\"tick\",\"type\":\"int24\"}],\"name\":\"Swap\",\"type\":\"event\"},{\"inputs\":[{\"internalType\":\"int24\",\"name\":\"tickLower\",\"type\":\"int24\"},{\"internalType\":\"int24\",\"name\":\"tickUpper\",\"type\":\"int24\"},{\"internalType\":\"uint128\",\"name\":\"amount\",\"type\":\"uint128\"}],\"name\":\"burn\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"amount0\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"amount1\",\"type\":\"uint256\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"int24\",\"name\":\"tickLower\",\"type\":\"int24\"},{\"internalType\":\"int24\",\"name\":\"tickUpper\",\"type\":\"int24\"},{\"internalType\":\"uint128\",\"name\":\"amount0Requested\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"amount1Requested\",\"type\":\"uint128\"}],\"name\":\"collect\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"amount0\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"amount1\",\"type\":\"uint128\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"uint128\",\"name\":\"amount0Requested\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"amount1Requested\",\"type\":\"uint128\"}],\"name\":\"collectProtocol\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"amount0\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"amount1\",\"type\":\"uint128\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"factory\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"fee\",\"outputs\":[{\"internalType\":\"uint24\",\"name\":\"\",\"type\":\"uint24\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"feeGrowthGlobal0X128\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"feeGrowthGlobal1X128\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount0\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"amount1\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"flash\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint16\",\"name\":\"observationCardinalityNext\",\"type\":\"uint16\"}],\"name\":\"increaseObservationCardinalityNext\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint160\",\"name\":\"sqrtPriceX96\",\"type\":\"uint160\"}],\"name\":\"initialize\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"liquidity\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"\",\"type\":\"uint128\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"maxLiquidityPerTick\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"\",\"type\":\"uint128\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"int24\",\"name\":\"tickLower\",\"type\":\"int24\"},{\"internalType\":\"int24\",\"name\":\"tickUpper\",\"type\":\"int24\"},{\"internalType\":\"uint128\",\"name\":\"amount\",\"type\":\"uint128\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"mint\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"amount0\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"amount1\",\"type\":\"uint256\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"name\":\"observations\",\"outputs\":[{\"internalType\":\"uint32\",\"name\":\"blockTimestamp\",\"type\":\"uint32\"},{\"internalType\":\"int56\",\"name\":\"tickCumulative\",\"type\":\"int56\"},{\"internalType\":\"uint160\",\"name\":\"secondsPerLiquidityCumulativeX128\",\"type\":\"uint160\"},{\"internalType\":\"bool\",\"name\":\"initialized\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint32[]\",\"name\":\"secondsAgos\",\"type\":\"uint32[]\"}],\"name\":\"observe\",\"outputs\":[{\"internalType\":\"int56[]\",\"name\":\"tickCumulatives\",\"type\":\"int56[]\"},{\"internalType\":\"uint160[]\",\"name\":\"secondsPerLiquidityCumulativeX128s\",\"type\":\"uint160[]\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"name\":\"positions\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"liquidity\",\"type\":\"uint128\"},{\"internalType\":\"uint256\",\"name\":\"feeGrowthInside0LastX128\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"feeGrowthInside1LastX128\",\"type\":\"uint256\"},{\"internalType\":\"uint128\",\"name\":\"tokensOwed0\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"tokensOwed1\",\"type\":\"uint128\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"protocolFees\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"token0\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"token1\",\"type\":\"uint128\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint8\",\"name\":\"feeProtocol0\",\"type\":\"uint8\"},{\"internalType\":\"uint8\",\"name\":\"feeProtocol1\",\"type\":\"uint8\"}],\"name\":\"setFeeProtocol\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"slot0\",\"outputs\":[{\"internalType\":\"uint160\",\"name\":\"sqrtPriceX96\",\"type\":\"uint160\"},{\"internalType\":\"int24\",\"name\":\"tick\",\"type\":\"int24\"},{\"internalType\":\"uint16\",\"name\":\"observationIndex\",\"type\":\"uint16\"},{\"internalType\":\"uint16\",\"name\":\"observationCardinality\",\"type\":\"uint16\"},{\"internalType\":\"uint16\",\"name\":\"observationCardinalityNext\",\"type\":\"uint16\"},{\"internalType\":\"uint8\",\"name\":\"feeProtocol\",\"type\":\"uint8\"},{\"internalType\":\"bool\",\"name\":\"unlocked\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"int24\",\"name\":\"tickLower\",\"type\":\"int24\"},{\"internalType\":\"int24\",\"name\":\"tickUpper\",\"type\":\"int24\"}],\"name\":\"snapshotCumulativesInside\",\"outputs\":[{\"internalType\":\"int56\",\"name\":\"tickCumulativeInside\",\"type\":\"int56\"},{\"internalType\":\"uint160\",\"name\":\"secondsPerLiquidityInsideX128\",\"type\":\"uint160\"},{\"internalType\":\"uint32\",\"name\":\"secondsInside\",\"type\":\"uint32\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"bool\",\"name\":\"zeroForOne\",\"type\":\"bool\"},{\"internalType\":\"int256\",\"name\":\"amountSpecified\",\"type\":\"int256\"},{\"internalType\":\"uint160\",\"name\":\"sqrtPriceLimitX96\",\"type\":\"uint160\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"swap\",\"outputs\":[{\"internalType\":\"int256\",\"name\":\"amount0\",\"type\":\"int256\"},{\"internalType\":\"int256\",\"name\":\"amount1\",\"type\":\"int256\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"int16\",\"name\":\"\",\"type\":\"int16\"}],\"name\":\"tickBitmap\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"tickSpacing\",\"outputs\":[{\"internalType\":\"int24\",\"name\":\"\",\"type\":\"int24\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"int24\",\"name\":\"\",\"type\":\"int24\"}],\"name\":\"ticks\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"liquidityGross\",\"type\":\"uint128\"},{\"internalType\":\"int128\",\"name\":\"liquidityNet\",\"type\":\"int128\"},{\"internalType\":\"uint256\",\"name\":\"feeGrowthOutside0X128\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"feeGrowthOutside1X128\",\"type\":\"uint256\"},{\"internalType\":\"int56\",\"name\":\"tickCumulativeOutside\",\"type\":\"int56\"},{\"internalType\":\"uint160\",\"name\":\"secondsPerLiquidityOutsideX128\",\"type\":\"uint160\"},{\"internalType\":\"uint32\",\"name\":\"secondsOutside\",\"type\":\"uint32\"},{\"internalType\":\"bool\",\"name\":\"initialized\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"token0\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"token1\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"}]'
var abiFactory = '[{\"inputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"uint24\",\"name\":\"fee\",\"type\":\"uint24\"},{\"indexed\":true,\"internalType\":\"int24\",\"name\":\"tickSpacing\",\"type\":\"int24\"}],\"name\":\"FeeAmountEnabled\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"oldOwner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"OwnerChanged\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"token0\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"token1\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"uint24\",\"name\":\"fee\",\"type\":\"uint24\"},{\"indexed\":false,\"internalType\":\"int24\",\"name\":\"tickSpacing\",\"type\":\"int24\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"pool\",\"type\":\"address\"}],\"name\":\"PoolCreated\",\"type\":\"event\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"tokenA\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"tokenB\",\"type\":\"address\"},{\"internalType\":\"uint24\",\"name\":\"fee\",\"type\":\"uint24\"}],\"name\":\"createPool\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"pool\",\"type\":\"address\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint24\",\"name\":\"fee\",\"type\":\"uint24\"},{\"internalType\":\"int24\",\"name\":\"tickSpacing\",\"type\":\"int24\"}],\"name\":\"enableFeeAmount\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint24\",\"name\":\"\",\"type\":\"uint24\"}],\"name\":\"feeAmountTickSpacing\",\"outputs\":[{\"internalType\":\"int24\",\"name\":\"\",\"type\":\"int24\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"uint24\",\"name\":\"\",\"type\":\"uint24\"}],\"name\":\"getPool\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"owner\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"parameters\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"factory\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"token0\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"token1\",\"type\":\"address\"},{\"internalType\":\"uint24\",\"name\":\"fee\",\"type\":\"uint24\"},{\"internalType\":\"int24\",\"name\":\"tickSpacing\",\"type\":\"int24\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_owner\",\"type\":\"address\"}],\"name\":\"setOwner\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"}]'

var contractV3FactoryAddress = "0x1F98431c8aD98523631AE4a59f267346ea31F984"
var contractV3SwapRouterV2Address = "0x68b3465833fb72A70ecDF485E0e4C7bD8665Fc45"

function main() {
    // 注册Uniswap工厂合约的ABI
    exchange.IO("abi", contractV3FactoryAddress, abiFactory)
    
    // 测试Factory合约的owner方法
    var owner = exchange.IO("api", contractV3FactoryAddress, "owner")
    Log("owner:", owner)   // 返回值应当为： 0x1a9C8182C09F50C8318d769245beA52c32BE35BC

    // 注册Uniswap路由合约的ABI
    exchange.IO("abi", contractV3SwapRouterV2Address, abiRoute)

    // 测试Uniswap V3 Router V2合约的factory方法
    var factoryOfRouter = exchange.IO("api", contractV3SwapRouterV2Address, "factory")
    Log("factoryOfRouter:", factoryOfRouter)  // 返回值应当为： 0x1F98431c8aD98523631AE4a59f267346ea31F984

    // 获取交易对的池地址
    var tokenIn = {name : "DAI", address: "0x6b175474e89094c44da98b954eedeac495271d0f"}
    var tokenOut = {name : "USDT", address: "0xdac17f958d2ee523a2206206994597c13d831ec7"}
    var poolAddress = exchange.IO("api", contractV3FactoryAddress, "getPool", tokenIn.address, tokenOut.address, 3000)
    var pair = "tokenIn:" + tokenIn.name + ", tokenOut:" + tokenOut.name + ", fee:" + 3000
    Log("使用工厂合约的getPool方法获取", pair, "池地址：", poolAddress)

    // 注册池合约ABI
    exchange.IO("abi", poolAddress, abiPool)

    // 测试池合约的
    var factoryOfPool = exchange.IO("api", poolAddress, "factory")
    Log("factoryOfPool:", factoryOfPool)   // 返回值应当为： 0x1F98431c8aD98523631AE4a59f267346ea31F984
}

مذکورہ کوڈ فیکٹری کنٹریکٹ، روٹنگ کنٹریکٹ، اور پول کنٹریکٹ کے ABI کو رجسٹر کرتا ہے، اور کچھ ٹیسٹ کرتا ہے۔ آپ روٹنگ کنٹریکٹ اور پول کنٹریکٹ کا مشاہدہ کر سکتے ہیں۔factoryطریقہ واپس آتا ہے۔0x1F98431c8aD98523631AE4a59f267346ea31F984یہ پتہ Uniswap فیکٹری معاہدہ ہے (کوڈ میںcontractV3FactoryAddressمتغیر)۔


            javascript
            
            
var contractV3FactoryAddress = "0x1F98431c8aD98523631AE4a59f267346ea31F984"

سمارٹ کنٹریکٹ کے ABI کو رجسٹر کرنے کے بعد، آئیے پہلے استعمال کرتے ہوئے دیکھتے ہیں۔Uniswap V3ایکسچینج آپریشن کے لیے، ہم درج ذیل مواد استعمال کرتے ہیں۔ERC20ٹوکن کا تبادلہ (ایتھریم مین نیٹ پر) ایک مخصوص منظر نامے کے طور پر استعمال ہوتا ہے۔

استفسار`Uniswap V3`روٹنگ کے معاہدے کی اجازت

موجودERC20معاہدے میں،allowanceفنکشن کا استعمال دوسرے پتوں پر مجاز ٹوکنز کی تعداد کے بارے میں استفسار کرنے کے لیے کیا جاتا ہے۔ یہ ان ٹوکنز کی تعداد کے بارے میں استفسار کر سکتا ہے جنہیں ایک مخصوص ایڈریس نے دوسرے ایڈریس (عام طور پر ایک کنٹریکٹ ایڈریس) کو اپنے اکاؤنٹ سے منتقل کرنے کی اجازت دی ہے۔
کے لیےUniswap V3روٹنگ کے معاہدے کے لیے، اگر آپ نے عمل درآمد کیا ہے۔approveفنکشن روٹر کنٹریکٹ کے ایڈریس پر مجاز ہے، پھر آپ استعمال کر سکتے ہیں۔ERC20ٹوکنallowanceمجاز مقدار سے استفسار کرنے کا فنکشن۔

پچھلے ٹیوٹوریل کو یاد رکھیں جس کا ہم نے مظاہرہ کیا تھا۔ERC20معاہدہ کے طریقہ کار کی کال؟allowance、approveدونوںERC20معاہدے کے طریقے ان سے ملتے جلتے ہیں جن کی ہم پہلے وضاحت کر چکے ہیں۔balanceOf、transferتمام طریقے یکساں حیثیت کے حامل ہیں۔

چھڑانے سے پہلے، ہمیں پہلے یہ جانچنے کی ضرورت ہے کہ آیا اجازت دی گئی ہے۔Uniswapروٹر کنٹریکٹ میں تبادلے کے لیے کافی ٹوکن ہیں اگر ہم جس کارروائی کا تبادلہ کرنا چاہتے ہیں وہ یہ ہے:1INCH->ETH، شرح 10000 مقرر کی گئی ہے۔ یہ شرح 10000 پر رکھی گئی ہے، جس کا مطلب ہے کہ شرح 1% ہے۔Uniswapایکسچینج پول میں عام طور پر مختلف شرحیں ہوسکتی ہیں۔Uniswapکئی اختیارات فراہم کیے گئے ہیں۔ مثال کے طور پر، اگر شرح 3000 پر سیٹ کی گئی ہے، تو اس کا مطلب ہے کہ شرح 0.3% ہے آپ مخصوص کو چیک کر سکتے ہیں۔Uniswapدستاویزات اور متعلقہ معلومات۔

یہاں یہ واضح رہے کہ اصل ایکسچینج پول ہے۔1INCH/WETH, ETH اور WETH Ethereum میں دو مختلف ٹوکن ہیں۔

ETH (ایتھر):
ETH Ethereum blockchain کی مقامی کریپٹو کرنسی ہے اور Ethereum نیٹ ورک کا اہم اثاثہ اور کمپیوٹنگ یونٹ ہے۔ ETH Ethereum پر مقامی ٹوکن ہے، جس میں یونیورسل سرکولیشن اور قابل استعمال ہے، اس کا استعمال لین دین کی فیس ادا کرنے، سمارٹ کنٹریکٹ کے تعاملات، اسٹور ویلیو وغیرہ میں کیا جا سکتا ہے۔
WETH (لپٹا ہوا ایتھر):
WETH ETH کی ایک شکل ہے جسے ERC20 معیاری ٹوکن کے طور پر شامل کیا گیا ہے۔ یہ Ethereum پر ایک سمارٹ معاہدہ ہے جس کا مقصد ETH کو سمارٹ معاہدوں میں ERC20 ٹوکنز کے ساتھ بغیر کسی رکاوٹ کے تعامل کرنے کے قابل بنانا ہے۔ WETH کو WETH کنٹریکٹ ایڈریس میں ETH جمع کر کے بنایا اور حاصل کیا جا سکتا ہے، اور WETH کو کسی بھی وقت ETH میں واپس منتقل کیا جا سکتا ہے۔ Ethereum ماحولیاتی نظام میں WETH کا بنیادی کردار ETH کو دوسرے ERC20 ٹوکنز کی طرح ایک ہی معیاری انٹرفیس اور مطابقت فراہم کرنا ہے، جس سے ETH کو وکندریقرت ٹرانزیکشنز، لیکویڈیٹی پولز، اور دیگر ڈی فائی پروٹوکولز میں حصہ لینے کے قابل بنانا ہے۔

لہذا، WETH ETH کی ایک پیک شدہ شکل ہے جو ETH کو Ethereum سمارٹ کنٹریکٹس میں ERC20 ٹوکن کی شکل میں بات چیت کرنے کے قابل بناتی ہے۔ عام طور پر، جب ETH کو اسمارٹ کنٹریکٹ میں استعمال کرنے کی ضرورت ہوتی ہے، ETH کو WETH میں تبدیل کیا جا سکتا ہے، تجارت کی جا سکتی ہے یا DeFi آپریشنز میں شامل کیا جا سکتا ہے، اور پھر ضرورت کے مطابق WETH کو ETH میں واپس تبدیل کیا جا سکتا ہے۔

استعمال کریںERC20کیallowanceمجاز مقدار حاصل کرنے کا طریقہ:


            javascript
            
            
var abiRoute = '[{"inputs":[{"internalType":"address","name":"_factoryV2","type":"address"},{"internalType":"address","name":"factoryV3","type":"address"},{"internalType":"address","name":"_positionManager","type":"address"},{"internalType":"address","name":"_WETH9","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"WETH9","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"approveMax","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"approveMaxMinusOne","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"approveZeroThenMax","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"approveZeroThenMaxMinusOne","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes","name":"data","type":"bytes"}],"name":"callPositionManager","outputs":[{"internalType":"bytes","name":"result","type":"bytes"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes[]","name":"paths","type":"bytes[]"},{"internalType":"uint128[]","name":"amounts","type":"uint128[]"},{"internalType":"uint24","name":"maximumTickDivergence","type":"uint24"},{"internalType":"uint32","name":"secondsAgo","type":"uint32"}],"name":"checkOracleSlippage","outputs":[],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes","name":"path","type":"bytes"},{"internalType":"uint24","name":"maximumTickDivergence","type":"uint24"},{"internalType":"uint32","name":"secondsAgo","type":"uint32"}],"name":"checkOracleSlippage","outputs":[],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"bytes","name":"path","type":"bytes"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMinimum","type":"uint256"}],"internalType":"struct IV3SwapRouter.ExactInputParams","name":"params","type":"tuple"}],"name":"exactInput","outputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"tokenIn","type":"address"},{"internalType":"address","name":"tokenOut","type":"address"},{"internalType":"uint24","name":"fee","type":"uint24"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMinimum","type":"uint256"},{"internalType":"uint160","name":"sqrtPriceLimitX96","type":"uint160"}],"internalType":"struct IV3SwapRouter.ExactInputSingleParams","name":"params","type":"tuple"}],"name":"exactInputSingle","outputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"bytes","name":"path","type":"bytes"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"uint256","name":"amountInMaximum","type":"uint256"}],"internalType":"struct IV3SwapRouter.ExactOutputParams","name":"params","type":"tuple"}],"name":"exactOutput","outputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"tokenIn","type":"address"},{"internalType":"address","name":"tokenOut","type":"address"},{"internalType":"uint24","name":"fee","type":"uint24"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"uint256","name":"amountInMaximum","type":"uint256"},{"internalType":"uint160","name":"sqrtPriceLimitX96","type":"uint160"}],"internalType":"struct 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IApproveAndCall.ApprovalType","name":"","type":"uint8"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"token0","type":"address"},{"internalType":"address","name":"token1","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"amount0Min","type":"uint256"},{"internalType":"uint256","name":"amount1Min","type":"uint256"}],"internalType":"struct IApproveAndCall.IncreaseLiquidityParams","name":"params","type":"tuple"}],"name":"increaseLiquidity","outputs":[{"internalType":"bytes","name":"result","type":"bytes"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"token0","type":"address"},{"internalType":"address","name":"token1","type":"address"},{"internalType":"uint24","name":"fee","type":"uint24"},{"internalType":"int24","name":"tickLower","type":"int24"},{"internalType":"int24","name":"tickUpper","type":"int24"},{"internalType":"uint256","name":"amount0Min","type":"uint256"},{"internalType":"uint256","name":"amount1Min","type":"uint256"},{"internalType":"address","name":"recipient","type":"address"}],"internalType":"struct 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var abiPool = '[{\"inputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"int24\",\"name\":\"tickLower\",\"type\":\"int24\"},{\"indexed\":true,\"internalType\":\"int24\",\"name\":\"tickUpper\",\"type\":\"int24\"},{\"indexed\":false,\"internalType\":\"uint128\",\"name\":\"amount\",\"type\":\"uint128\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount0\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount1\",\"type\":\"uint256\"}],\"name\":\"Burn\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"int24\",\"name\":\"tickLower\",\"type\":\"int24\"},{\"indexed\":true,\"internalType\":\"int24\",\"name\":\"tickUpper\",\"type\":\"int24\"},{\"indexed\":false,\"internalType\":\"uint128\",\"name\":\"amount0\",\"type\":\"uint128\"},{\"indexed\":false,\"internalType\":\"uint128\",\"name\":\"amount1\",\"type\":\"uint128\"}],\"name\":\"Collect\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"sender\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint128\",\"name\":\"amount0\",\"type\":\"uint128\"},{\"indexed\":false,\"internalType\":\"uint128\",\"name\":\"amount1\",\"type\":\"uint128\"}],\"name\":\"CollectProtocol\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"sender\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount0\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount1\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"paid0\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"paid1\",\"type\":\"uint256\"}],\"name\":\"Flash\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint16\",\"name\":\"observationCardinalityNextOld\",\"type\":\"uint16\"},{\"indexed\":false,\"internalType\":\"uint16\",\"name\":\"observationCardinalityNextNew\",\"type\":\"uint16\"}],\"name\":\"IncreaseObservationCardinalityNext\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint160\",\"name\":\"sqrtPriceX96\",\"type\":\"uint160\"},{\"indexed\":false,\"internalType\":\"int24\",\"name\":\"tick\",\"type\":\"int24\"}],\"name\":\"Initialize\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"address\",\"name\":\"sender\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"int24\",\"name\":\"tickLower\",\"type\":\"int24\"},{\"indexed\":true,\"internalType\":\"int24\",\"name\":\"tickUpper\",\"type\":\"int24\"},{\"indexed\":false,\"internalType\":\"uint128\",\"name\":\"amount\",\"type\":\"uint128\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount0\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount1\",\"type\":\"uint256\"}],\"name\":\"Mint\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint8\",\"name\":\"feeProtocol0Old\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"uint8\",\"name\":\"feeProtocol1Old\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"uint8\",\"name\":\"feeProtocol0New\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"uint8\",\"name\":\"feeProtocol1New\",\"type\":\"uint8\"}],\"name\":\"SetFeeProtocol\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"sender\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"int256\",\"name\":\"amount0\",\"type\":\"int256\"},{\"indexed\":false,\"internalType\":\"int256\",\"name\":\"amount1\",\"type\":\"int256\"},{\"indexed\":false,\"internalType\":\"uint160\",\"name\":\"sqrtPriceX96\",\"type\":\"uint160\"},{\"indexed\":false,\"internalType\":\"uint128\",\"name\":\"liquidity\",\"type\":\"uint128\"},{\"indexed\":false,\"internalType\":\"int24\",\"name\":\"tick\",\"type\":\"int24\"}],\"name\":\"Swap\",\"type\":\"event\"},{\"inputs\":[{\"internalType\":\"int24\",\"name\":\"tickLower\",\"type\":\"int24\"},{\"internalType\":\"int24\",\"name\":\"tickUpper\",\"type\":\"int24\"},{\"internalType\":\"uint128\",\"name\":\"amount\",\"type\":\"uint128\"}],\"name\":\"burn\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"amount0\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"amount1\",\"type\":\"uint256\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"int24\",\"name\":\"tickLower\",\"type\":\"int24\"},{\"internalType\":\"int24\",\"name\":\"tickUpper\",\"type\":\"int24\"},{\"internalType\":\"uint128\",\"name\":\"amount0Requested\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"amount1Requested\",\"type\":\"uint128\"}],\"name\":\"collect\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"amount0\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"amount1\",\"type\":\"uint128\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"uint128\",\"name\":\"amount0Requested\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"amount1Requested\",\"type\":\"uint128\"}],\"name\":\"collectProtocol\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"amount0\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"amount1\",\"type\":\"uint128\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"factory\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"fee\",\"outputs\":[{\"internalType\":\"uint24\",\"name\":\"\",\"type\":\"uint24\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"feeGrowthGlobal0X128\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"feeGrowthGlobal1X128\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount0\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"amount1\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"flash\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint16\",\"name\":\"observationCardinalityNext\",\"type\":\"uint16\"}],\"name\":\"increaseObservationCardinalityNext\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint160\",\"name\":\"sqrtPriceX96\",\"type\":\"uint160\"}],\"name\":\"initialize\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"liquidity\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"\",\"type\":\"uint128\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"maxLiquidityPerTick\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"\",\"type\":\"uint128\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"int24\",\"name\":\"tickLower\",\"type\":\"int24\"},{\"internalType\":\"int24\",\"name\":\"tickUpper\",\"type\":\"int24\"},{\"internalType\":\"uint128\",\"name\":\"amount\",\"type\":\"uint128\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"mint\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"amount0\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"amount1\",\"type\":\"uint256\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"name\":\"observations\",\"outputs\":[{\"internalType\":\"uint32\",\"name\":\"blockTimestamp\",\"type\":\"uint32\"},{\"internalType\":\"int56\",\"name\":\"tickCumulative\",\"type\":\"int56\"},{\"internalType\":\"uint160\",\"name\":\"secondsPerLiquidityCumulativeX128\",\"type\":\"uint160\"},{\"internalType\":\"bool\",\"name\":\"initialized\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint32[]\",\"name\":\"secondsAgos\",\"type\":\"uint32[]\"}],\"name\":\"observe\",\"outputs\":[{\"internalType\":\"int56[]\",\"name\":\"tickCumulatives\",\"type\":\"int56[]\"},{\"internalType\":\"uint160[]\",\"name\":\"secondsPerLiquidityCumulativeX128s\",\"type\":\"uint160[]\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"name\":\"positions\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"liquidity\",\"type\":\"uint128\"},{\"internalType\":\"uint256\",\"name\":\"feeGrowthInside0LastX128\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"feeGrowthInside1LastX128\",\"type\":\"uint256\"},{\"internalType\":\"uint128\",\"name\":\"tokensOwed0\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"tokensOwed1\",\"type\":\"uint128\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"protocolFees\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"token0\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"token1\",\"type\":\"uint128\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint8\",\"name\":\"feeProtocol0\",\"type\":\"uint8\"},{\"internalType\":\"uint8\",\"name\":\"feeProtocol1\",\"type\":\"uint8\"}],\"name\":\"setFeeProtocol\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"slot0\",\"outputs\":[{\"internalType\":\"uint160\",\"name\":\"sqrtPriceX96\",\"type\":\"uint160\"},{\"internalType\":\"int24\",\"name\":\"tick\",\"type\":\"int24\"},{\"internalType\":\"uint16\",\"name\":\"observationIndex\",\"type\":\"uint16\"},{\"internalType\":\"uint16\",\"name\":\"observationCardinality\",\"type\":\"uint16\"},{\"internalType\":\"uint16\",\"name\":\"observationCardinalityNext\",\"type\":\"uint16\"},{\"internalType\":\"uint8\",\"name\":\"feeProtocol\",\"type\":\"uint8\"},{\"internalType\":\"bool\",\"name\":\"unlocked\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"int24\",\"name\":\"tickLower\",\"type\":\"int24\"},{\"internalType\":\"int24\",\"name\":\"tickUpper\",\"type\":\"int24\"}],\"name\":\"snapshotCumulativesInside\",\"outputs\":[{\"internalType\":\"int56\",\"name\":\"tickCumulativeInside\",\"type\":\"int56\"},{\"internalType\":\"uint160\",\"name\":\"secondsPerLiquidityInsideX128\",\"type\":\"uint160\"},{\"internalType\":\"uint32\",\"name\":\"secondsInside\",\"type\":\"uint32\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"bool\",\"name\":\"zeroForOne\",\"type\":\"bool\"},{\"internalType\":\"int256\",\"name\":\"amountSpecified\",\"type\":\"int256\"},{\"internalType\":\"uint160\",\"name\":\"sqrtPriceLimitX96\",\"type\":\"uint160\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"swap\",\"outputs\":[{\"internalType\":\"int256\",\"name\":\"amount0\",\"type\":\"int256\"},{\"internalType\":\"int256\",\"name\":\"amount1\",\"type\":\"int256\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"int16\",\"name\":\"\",\"type\":\"int16\"}],\"name\":\"tickBitmap\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"tickSpacing\",\"outputs\":[{\"internalType\":\"int24\",\"name\":\"\",\"type\":\"int24\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"int24\",\"name\":\"\",\"type\":\"int24\"}],\"name\":\"ticks\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"liquidityGross\",\"type\":\"uint128\"},{\"internalType\":\"int128\",\"name\":\"liquidityNet\",\"type\":\"int128\"},{\"internalType\":\"uint256\",\"name\":\"feeGrowthOutside0X128\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"feeGrowthOutside1X128\",\"type\":\"uint256\"},{\"internalType\":\"int56\",\"name\":\"tickCumulativeOutside\",\"type\":\"int56\"},{\"internalType\":\"uint160\",\"name\":\"secondsPerLiquidityOutsideX128\",\"type\":\"uint160\"},{\"internalType\":\"uint32\",\"name\":\"secondsOutside\",\"type\":\"uint32\"},{\"internalType\":\"bool\",\"name\":\"initialized\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"token0\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"token1\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"}]'
var abiFactory = '[{\"inputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"uint24\",\"name\":\"fee\",\"type\":\"uint24\"},{\"indexed\":true,\"internalType\":\"int24\",\"name\":\"tickSpacing\",\"type\":\"int24\"}],\"name\":\"FeeAmountEnabled\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"oldOwner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"OwnerChanged\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"token0\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"token1\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"uint24\",\"name\":\"fee\",\"type\":\"uint24\"},{\"indexed\":false,\"internalType\":\"int24\",\"name\":\"tickSpacing\",\"type\":\"int24\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"pool\",\"type\":\"address\"}],\"name\":\"PoolCreated\",\"type\":\"event\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"tokenA\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"tokenB\",\"type\":\"address\"},{\"internalType\":\"uint24\",\"name\":\"fee\",\"type\":\"uint24\"}],\"name\":\"createPool\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"pool\",\"type\":\"address\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint24\",\"name\":\"fee\",\"type\":\"uint24\"},{\"internalType\":\"int24\",\"name\":\"tickSpacing\",\"type\":\"int24\"}],\"name\":\"enableFeeAmount\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint24\",\"name\":\"\",\"type\":\"uint24\"}],\"name\":\"feeAmountTickSpacing\",\"outputs\":[{\"internalType\":\"int24\",\"name\":\"\",\"type\":\"int24\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"uint24\",\"name\":\"\",\"type\":\"uint24\"}],\"name\":\"getPool\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"owner\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"parameters\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"factory\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"token0\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"token1\",\"type\":\"address\"},{\"internalType\":\"uint24\",\"name\":\"fee\",\"type\":\"uint24\"},{\"internalType\":\"int24\",\"name\":\"tickSpacing\",\"type\":\"int24\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_owner\",\"type\":\"address\"}],\"name\":\"setOwner\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"}]'

var contractV3FactoryAddress = "0x1F98431c8aD98523631AE4a59f267346ea31F984"
var contractV3SwapRouterV2Address = "0x68b3465833fb72A70ecDF485E0e4C7bD8665Fc45"

function toAmount(s, decimals) {
    return Number((BigDecimal(BigInt(s)) / BigDecimal(Math.pow(10, decimals))).toString())
}

function main() {
    // 注册Uniswap工厂合约的ABI
    exchange.IO("abi", contractV3FactoryAddress, abiFactory)

    // 注册Uniswap路由合约的ABI
    exchange.IO("abi", contractV3SwapRouterV2Address, abiRoute)

    // 获取交易对的池地址
    var tokenIn = {name : "1INCH", address: "0x111111111117dC0aa78b770fA6A738034120C302", decimals: exchange.IO("api", "0x111111111117dC0aa78b770fA6A738034120C302", "decimals")}
    var tokenOut = {name : "WETH", address: "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2", decimals: exchange.IO("api", "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2", "decimals")}
    var poolAddress = exchange.IO("api", contractV3FactoryAddress, "getPool", tokenIn.address, tokenOut.address, 10000)

    // 注册池合约ABI
    exchange.IO("abi", poolAddress, abiPool)
    
    // 获取当前配置的钱包地址
    var walletAddress = exchange.IO("address")

    // 1INCH -> ETH, tokenIn: 1INCH
    var allowanceAmount = exchange.IO("api", tokenIn.address, "allowance", walletAddress, contractV3SwapRouterV2Address)
    Log("allowanceAmount:", allowanceAmount, ", 使用toAmount()函数转换为可读数值：", toAmount(allowanceAmount, tokenIn.decimals))
}

کوڈ کے لیےtoAmount()ہمیں فنکشنز سے واقف ہونا چاہیے ہم نے اس حسب ضرورت فنکشن کوڈ کا استعمال پچھلے ابواب میں ڈیٹا کو عددی اقدار میں کرنے کے لیے کیا ہے جو کہ انسانوں کے لیے پڑھنا آسان ہے۔


            javascript
            
            
function toAmount(s, decimals) {
    return Number((BigDecimal(BigInt(s)) / BigDecimal(Math.pow(10, decimals))).toString())
}

کوڈ چلاتے وقت، ہمیں معلوم ہوتا ہے کہ موجودہ مجاز مقدار 0 ہے۔ لہذا، چھڑانے کے لیے، ہمیں روٹنگ کنٹریکٹ کے لیے کافی مقدار کی اجازت دینی چاہیے۔

اجازت`Uniswap V3`روٹنگ کا معاہدہ

اگر آپ استعمال کر رہے ہیں۔allowanceاگر استفسار کے بعد اجازت نامے کی تعداد ناکافی ہے تو آپ کو استعمال کرنے کی ضرورت ہے۔approveاجازتUniswap V3روٹنگ کے معاہدے اسے ایک مخصوص تعداد میں کام کرنے کی اجازت دیتے ہیں۔ERC20ٹوکنز۔

یا1INCH -> ETHمثال کے طور پر استعمال کریں۔ERC20کیapproveطریقےUniswapروٹنگ کنٹریکٹ فی الحال کنفیگر شدہ والیٹ کے آپریشن کی اجازت دیتا ہے۔1INCHٹوکنز۔


            javascript
            
            
var abiRoute = '[{"inputs":[{"internalType":"address","name":"_factoryV2","type":"address"},{"internalType":"address","name":"factoryV3","type":"address"},{"internalType":"address","name":"_positionManager","type":"address"},{"internalType":"address","name":"_WETH9","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"WETH9","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"approveMax","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"approveMaxMinusOne","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"approveZeroThenMax","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"approveZeroThenMaxMinusOne","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes","name":"data","type":"bytes"}],"name":"callPositionManager","outputs":[{"internalType":"bytes","name":"result","type":"bytes"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes[]","name":"paths","type":"bytes[]"},{"internalType":"uint128[]","name":"amounts","type":"uint128[]"},{"internalType":"uint24","name":"maximumTickDivergence","type":"uint24"},{"internalType":"uint32","name":"secondsAgo","type":"uint32"}],"name":"checkOracleSlippage","outputs":[],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes","name":"path","type":"bytes"},{"internalType":"uint24","name":"maximumTickDivergence","type":"uint24"},{"internalType":"uint32","name":"secondsAgo","type":"uint32"}],"name":"checkOracleSlippage","outputs":[],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"bytes","name":"path","type":"bytes"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMinimum","type":"uint256"}],"internalType":"struct IV3SwapRouter.ExactInputParams","name":"params","type":"tuple"}],"name":"exactInput","outputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"tokenIn","type":"address"},{"internalType":"address","name":"tokenOut","type":"address"},{"internalType":"uint24","name":"fee","type":"uint24"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMinimum","type":"uint256"},{"internalType":"uint160","name":"sqrtPriceLimitX96","type":"uint160"}],"internalType":"struct IV3SwapRouter.ExactInputSingleParams","name":"params","type":"tuple"}],"name":"exactInputSingle","outputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"bytes","name":"path","type":"bytes"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"uint256","name":"amountInMaximum","type":"uint256"}],"internalType":"struct IV3SwapRouter.ExactOutputParams","name":"params","type":"tuple"}],"name":"exactOutput","outputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"tokenIn","type":"address"},{"internalType":"address","name":"tokenOut","type":"address"},{"internalType":"uint24","name":"fee","type":"uint24"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"uint256","name":"amountInMaximum","type":"uint256"},{"internalType":"uint160","name":"sqrtPriceLimitX96","type":"uint160"}],"internalType":"struct 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\"amount\",\"type\":\"uint128\"}],\"name\":\"burn\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"amount0\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"amount1\",\"type\":\"uint256\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"int24\",\"name\":\"tickLower\",\"type\":\"int24\"},{\"internalType\":\"int24\",\"name\":\"tickUpper\",\"type\":\"int24\"},{\"internalType\":\"uint128\",\"name\":\"amount0Requested\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"amount1Requested\",\"type\":\"uint128\"}],\"name\":\"collect\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"amount0\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"amount1\",\"type\":\"uint128\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"uint128\",\"name\":\"amount0Requested\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"amount1Requested\",\"type\":\"uint128\"}],\"name\":\"collectProtocol\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"amount0\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"amount1\",\"type\":\"uint128\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"factory\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"fee\",\"outputs\":[{\"internalType\":\"uint24\",\"name\":\"\",\"type\":\"uint24\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"feeGrowthGlobal0X128\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"feeGrowthGlobal1X128\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount0\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"amount1\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"flash\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint16\",\"name\":\"observationCardinalityNext\",\"type\":\"uint16\"}],\"name\":\"increaseObservationCardinalityNext\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint160\",\"name\":\"sqrtPriceX96\",\"type\":\"uint160\"}],\"name\":\"initialize\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"liquidity\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"\",\"type\":\"uint128\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"maxLiquidityPerTick\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"\",\"type\":\"uint128\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"int24\",\"name\":\"tickLower\",\"type\":\"int24\"},{\"internalType\":\"int24\",\"name\":\"tickUpper\",\"type\":\"int24\"},{\"internalType\":\"uint128\",\"name\":\"amount\",\"type\":\"uint128\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"mint\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"amount0\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"amount1\",\"type\":\"uint256\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"name\":\"observations\",\"outputs\":[{\"internalType\":\"uint32\",\"name\":\"blockTimestamp\",\"type\":\"uint32\"},{\"internalType\":\"int56\",\"name\":\"tickCumulative\",\"type\":\"int56\"},{\"internalType\":\"uint160\",\"name\":\"secondsPerLiquidityCumulativeX128\",\"type\":\"uint160\"},{\"internalType\":\"bool\",\"name\":\"initialized\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint32[]\",\"name\":\"secondsAgos\",\"type\":\"uint32[]\"}],\"name\":\"observe\",\"outputs\":[{\"internalType\":\"int56[]\",\"name\":\"tickCumulatives\",\"type\":\"int56[]\"},{\"internalType\":\"uint160[]\",\"name\":\"secondsPerLiquidityCumulativeX128s\",\"type\":\"uint160[]\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"name\":\"positions\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"liquidity\",\"type\":\"uint128\"},{\"internalType\":\"uint256\",\"name\":\"feeGrowthInside0LastX128\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"feeGrowthInside1LastX128\",\"type\":\"uint256\"},{\"internalType\":\"uint128\",\"name\":\"tokensOwed0\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"tokensOwed1\",\"type\":\"uint128\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"protocolFees\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"token0\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"token1\",\"type\":\"uint128\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint8\",\"name\":\"feeProtocol0\",\"type\":\"uint8\"},{\"internalType\":\"uint8\",\"name\":\"feeProtocol1\",\"type\":\"uint8\"}],\"name\":\"setFeeProtocol\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"slot0\",\"outputs\":[{\"internalType\":\"uint160\",\"name\":\"sqrtPriceX96\",\"type\":\"uint160\"},{\"internalType\":\"int24\",\"name\":\"tick\",\"type\":\"int24\"},{\"internalType\":\"uint16\",\"name\":\"observationIndex\",\"type\":\"uint16\"},{\"internalType\":\"uint16\",\"name\":\"observationCardinality\",\"type\":\"uint16\"},{\"internalType\":\"uint16\",\"name\":\"observationCardinalityNext\",\"type\":\"uint16\"},{\"internalType\":\"uint8\",\"name\":\"feeProtocol\",\"type\":\"uint8\"},{\"internalType\":\"bool\",\"name\":\"unlocked\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"int24\",\"name\":\"tickLower\",\"type\":\"int24\"},{\"internalType\":\"int24\",\"name\":\"tickUpper\",\"type\":\"int24\"}],\"name\":\"snapshotCumulativesInside\",\"outputs\":[{\"internalType\":\"int56\",\"name\":\"tickCumulativeInside\",\"type\":\"int56\"},{\"internalType\":\"uint160\",\"name\":\"secondsPerLiquidityInsideX128\",\"type\":\"uint160\"},{\"internalType\":\"uint32\",\"name\":\"secondsInside\",\"type\":\"uint32\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"bool\",\"name\":\"zeroForOne\",\"type\":\"bool\"},{\"internalType\":\"int256\",\"name\":\"amountSpecified\",\"type\":\"int256\"},{\"internalType\":\"uint160\",\"name\":\"sqrtPriceLimitX96\",\"type\":\"uint160\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"swap\",\"outputs\":[{\"internalType\":\"int256\",\"name\":\"amount0\",\"type\":\"int256\"},{\"internalType\":\"int256\",\"name\":\"amount1\",\"type\":\"int256\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"int16\",\"name\":\"\",\"type\":\"int16\"}],\"name\":\"tickBitmap\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"tickSpacing\",\"outputs\":[{\"internalType\":\"int24\",\"name\":\"\",\"type\":\"int24\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"int24\",\"name\":\"\",\"type\":\"int24\"}],\"name\":\"ticks\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"liquidityGross\",\"type\":\"uint128\"},{\"internalType\":\"int128\",\"name\":\"liquidityNet\",\"type\":\"int128\"},{\"internalType\":\"uint256\",\"name\":\"feeGrowthOutside0X128\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"feeGrowthOutside1X128\",\"type\":\"uint256\"},{\"internalType\":\"int56\",\"name\":\"tickCumulativeOutside\",\"type\":\"int56\"},{\"internalType\":\"uint160\",\"name\":\"secondsPerLiquidityOutsideX128\",\"type\":\"uint160\"},{\"internalType\":\"uint32\",\"name\":\"secondsOutside\",\"type\":\"uint32\"},{\"internalType\":\"bool\",\"name\":\"initialized\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"token0\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"token1\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"}]'
var abiFactory = '[{\"inputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"uint24\",\"name\":\"fee\",\"type\":\"uint24\"},{\"indexed\":true,\"internalType\":\"int24\",\"name\":\"tickSpacing\",\"type\":\"int24\"}],\"name\":\"FeeAmountEnabled\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"oldOwner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"OwnerChanged\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"token0\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"token1\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"uint24\",\"name\":\"fee\",\"type\":\"uint24\"},{\"indexed\":false,\"internalType\":\"int24\",\"name\":\"tickSpacing\",\"type\":\"int24\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"pool\",\"type\":\"address\"}],\"name\":\"PoolCreated\",\"type\":\"event\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"tokenA\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"tokenB\",\"type\":\"address\"},{\"internalType\":\"uint24\",\"name\":\"fee\",\"type\":\"uint24\"}],\"name\":\"createPool\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"pool\",\"type\":\"address\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint24\",\"name\":\"fee\",\"type\":\"uint24\"},{\"internalType\":\"int24\",\"name\":\"tickSpacing\",\"type\":\"int24\"}],\"name\":\"enableFeeAmount\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint24\",\"name\":\"\",\"type\":\"uint24\"}],\"name\":\"feeAmountTickSpacing\",\"outputs\":[{\"internalType\":\"int24\",\"name\":\"\",\"type\":\"int24\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"uint24\",\"name\":\"\",\"type\":\"uint24\"}],\"name\":\"getPool\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"owner\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"parameters\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"factory\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"token0\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"token1\",\"type\":\"address\"},{\"internalType\":\"uint24\",\"name\":\"fee\",\"type\":\"uint24\"},{\"internalType\":\"int24\",\"name\":\"tickSpacing\",\"type\":\"int24\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_owner\",\"type\":\"address\"}],\"name\":\"setOwner\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"}]'

var contractV3FactoryAddress = "0x1F98431c8aD98523631AE4a59f267346ea31F984"
var contractV3SwapRouterV2Address = "0x68b3465833fb72A70ecDF485E0e4C7bD8665Fc45"

function toAmount(s, decimals) {
    return Number((BigDecimal(BigInt(s)) / BigDecimal(Math.pow(10, decimals))).toString())
}

function toInnerAmount(n, decimals) {
    return (BigDecimal(n) * BigDecimal(Math.pow(10, decimals))).toFixed(0)
}

function main() {
    // 注册Uniswap工厂合约的ABI
    exchange.IO("abi", contractV3FactoryAddress, abiFactory)

    // 注册Uniswap路由合约的ABI
    exchange.IO("abi", contractV3SwapRouterV2Address, abiRoute)

    // 获取交易对的池地址
    var tokenIn = {name : "1INCH", address: "0x111111111117dC0aa78b770fA6A738034120C302", decimals: exchange.IO("api", "0x111111111117dC0aa78b770fA6A738034120C302", "decimals")}
    var tokenOut = {name : "WETH", address: "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2", decimals: exchange.IO("api", "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2", "decimals")}
    var poolAddress = exchange.IO("api", contractV3FactoryAddress, "getPool", tokenIn.address, tokenOut.address, 10000)

    // 注册池合约ABI
    exchange.IO("abi", poolAddress, abiPool)
    
    // 获取当前配置的钱包地址
    var walletAddress = exchange.IO("address")

    // 1INCH -> WETH, tokenIn: 1INCH
    var allowanceAmount = exchange.IO("api", tokenIn.address, "allowance", walletAddress, contractV3SwapRouterV2Address)
    Log("allowanceAmount:", allowanceAmount, ", 使用toAmount()函数转换为可读数值：", toAmount(allowanceAmount, tokenIn.decimals))
    
    var balance = exchange.IO("api", "0x111111111117dC0aa78b770fA6A738034120C302", "balanceOf", walletAddress)
    var balanceOf1INCH = toAmount(balance, tokenIn.decimals)
    Log("balanceOf1INCH:", balanceOf1INCH)

    var swapAmount = 38
    if (balanceOf1INCH < swapAmount) {
        Log("钱包中", tokenIn.name, "不足，数量只有：", balanceOf1INCH)
    }

    if (toAmount(allowanceAmount, tokenIn.decimals) < swapAmount) {
        Log("授权数量不足，进行授权")
        // 也可以指定授权数量为无限，即把代码中toInnerAmount(swapAmount, tokenIn.decimals) 替换为 '0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff'
        var txApprove = exchange.IO("api", tokenIn.address, "approve", contractV3SwapRouterV2Address, toInnerAmount(swapAmount, tokenIn.decimals))
        if (!txApprove) {
            Log("授权失败")
        } else {
            for (var i = 0; i < 10; i++) {
                Sleep(5000)
                var info = exchange.IO("api", "eth", "eth_getTransactionReceipt", txApprove)
                if (info && info.gasUsed) {
                    Log("info:", info)
                    break
                }
                Log('Transaction not yet mined', txApprove)
            }
            // 再次查询授权数量
            allowanceAmount = exchange.IO("api", tokenIn.address, "allowance", walletAddress, contractV3SwapRouterV2Address)
            Log("再次查询授权数量，", "allowanceAmount:", allowanceAmount, ", 使用toAmount()函数转换为可读数值：", toAmount(allowanceAmount, tokenIn.decimals))
        }
    }
}

شامل کیا گیا atoInnerAmount()کسٹم فنکشن کا نفاذ ہمارے پچھلے کورسز میں اکثر استعمال ہوتا رہا ہے، اس لیے میں یہاں تفصیلات میں نہیں جاؤں گا۔
آپ اجازت کا ریکارڈ دیکھ سکتے ہیں اور اجازت کی حیثیت کو چیک کرنے کے لیے دوبارہ کوڈ پر کال کر سکتے ہیں:


            javascript
            
            
allowanceAmount = exchange.IO("api", tokenIn.address, "allowance", walletAddress, contractV3SwapRouterV2Address)
Log("再次查询授权数量，", "allowanceAmount:", allowanceAmount, ", 使用toAmount()函数转换为可读数值：", toAmount(allowanceAmount, tokenIn.decimals))

Uniswap کا استعمال کرتے ہوئے ٹوکن سویپ

جب بٹوے میں ادائیگی کے لیے کافی ٹوکن ہوں (یعنی: ٹوکن ان)، اور اجازتUniswapروٹنگ کنٹریکٹ میں کافی آپریشنز ہوتے ہیں، اور پھر ایکسچینج کو عمل میں لایا جا سکتا ہے۔
Uniswapروٹنگ کے معاہدوں میں چھٹکارے کے متعدد طریقے ہوتے ہیں، جنہیں یہاں دکھایا گیا ہے۔exactInputطریقہ، اصل تبادلہ پول ہے1INCH/WETH، چھڑائیں اور دوبارہ استعمال کریں۔unwrapWETH9WETH کو ETH میں کھولنے کا طریقہ۔ ہم نے پچھلے ERC20 باب میں اس تصور پر تبادلہ خیال کیا ہے۔withdrawتفصیل میں بیان کیا گیا ہے۔

ایکسچینج آپریشن بنیادی طور پر تین طریقے استعمال کرتا ہے:exactInput、unwrapWETH9、multicall، پہلے ڈالیں۔Uniswapروٹنگ کا معاہدہexactInputطریقہ کال،unwrapWETH9طریقہ کال کوڈ پھر روٹنگ کنٹریکٹ کے ذریعہ استعمال کیا جاتا ہے۔multicallطریقہ بیچ پر عمل درآمد۔


            javascript
            
            
    // 兑换
    var recipientAddress = "0x0000000000000000000000000000000000000002"  // 如果最终兑换到手的是ETH或者WETH，需要把exactInput方法的recipient参数指定为"0x0000000000000000000000000000000000000002"
    var fee = exchange.IO("encodePacked", "uint24", 10000)
    var path = tokenIn.address.slice(2).toLowerCase() + fee + tokenOut.address.slice(2).toLowerCase()
    var minOut = 1
    var amountIn = toInnerAmount(swapAmount, tokenIn.decimals)

    var swapToken = exchange.IO("encode", contractV3SwapRouterV2Address, "exactInput", {
        path: path,
        recipient: recipientAddress,
        amountIn: amountIn,
        amountOutMinimum: minOut
    })

    var data = [swapToken]
    data.push(exchange.IO("encode", contractV3SwapRouterV2Address, "unwrapWETH9(uint256,address)", 1, walletAddress))
    var tx = exchange.IO("api", contractV3SwapRouterV2Address, "multicall(uint256,bytes[])", 0, (new Date().getTime() / 1000) + 3600, data)
    Log("tx:", tx)

استعمال کریںexchange.IO("encodePacked", ...)فنکشن شرح کے پیرامیٹرز کو انکوڈ اور کمپریس کرتا ہے۔
کے مطابقexactInputطریقہ پیرامیٹر کی ضروریات، تعمیراتی راستے کے پیرامیٹرزpath。
استعمال کریںexchange.IO("encode", ...)فنکشن انکوڈنگexactInputطریقہ کال۔
نوٹ: اگر فائنل ایکسچینج ETH یا WETH ہے تو، exactInput طریقہ کے وصول کنندہ پیرامیٹر کو "0x000000000000000000000000000000000000000000000000000000000000000002" کے طور پر بیان کرنے کی ضرورت ہے۔
استعمال کریںexchange.IO("encode", ...)فنکشن انکوڈنگunwrapWETH9(uint256,address)طریقہ کال۔
استعمال کریںmulticall(uint256,bytes[])طریقہ اوپر کوڈ کردہ فنکشن کال کو انجام دیتا ہے۔

تبادلے کے نتائج سے استفسار کریں:

مکمل کوڈ:


            javascript
            
            
var abiRoute = '[{"inputs":[{"internalType":"address","name":"_factoryV2","type":"address"},{"internalType":"address","name":"factoryV3","type":"address"},{"internalType":"address","name":"_positionManager","type":"address"},{"internalType":"address","name":"_WETH9","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"WETH9","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"approveMax","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"approveMaxMinusOne","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"approveZeroThenMax","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"approveZeroThenMaxMinusOne","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes","name":"data","type":"bytes"}],"name":"callPositionManager","outputs":[{"internalType":"bytes","name":"result","type":"bytes"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes[]","name":"paths","type":"bytes[]"},{"internalType":"uint128[]","name":"amounts","type":"uint128[]"},{"internalType":"uint24","name":"maximumTickDivergence","type":"uint24"},{"internalType":"uint32","name":"secondsAgo","type":"uint32"}],"name":"checkOracleSlippage","outputs":[],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes","name":"path","type":"bytes"},{"internalType":"uint24","name":"maximumTickDivergence","type":"uint24"},{"internalType":"uint32","name":"secondsAgo","type":"uint32"}],"name":"checkOracleSlippage","outputs":[],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"bytes","name":"path","type":"bytes"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMinimum","type":"uint256"}],"internalType":"struct IV3SwapRouter.ExactInputParams","name":"params","type":"tuple"}],"name":"exactInput","outputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"tokenIn","type":"address"},{"internalType":"address","name":"tokenOut","type":"address"},{"internalType":"uint24","name":"fee","type":"uint24"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMinimum","type":"uint256"},{"internalType":"uint160","name":"sqrtPriceLimitX96","type":"uint160"}],"internalType":"struct IV3SwapRouter.ExactInputSingleParams","name":"params","type":"tuple"}],"name":"exactInputSingle","outputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"bytes","name":"path","type":"bytes"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"uint256","name":"amountInMaximum","type":"uint256"}],"internalType":"struct IV3SwapRouter.ExactOutputParams","name":"params","type":"tuple"}],"name":"exactOutput","outputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"tokenIn","type":"address"},{"internalType":"address","name":"tokenOut","type":"address"},{"internalType":"uint24","name":"fee","type":"uint24"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"uint256","name":"amountInMaximum","type":"uint256"},{"internalType":"uint160","name":"sqrtPriceLimitX96","type":"uint160"}],"internalType":"struct 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\"amount\",\"type\":\"uint128\"}],\"name\":\"burn\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"amount0\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"amount1\",\"type\":\"uint256\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"int24\",\"name\":\"tickLower\",\"type\":\"int24\"},{\"internalType\":\"int24\",\"name\":\"tickUpper\",\"type\":\"int24\"},{\"internalType\":\"uint128\",\"name\":\"amount0Requested\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"amount1Requested\",\"type\":\"uint128\"}],\"name\":\"collect\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"amount0\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"amount1\",\"type\":\"uint128\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"uint128\",\"name\":\"amount0Requested\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"amount1Requested\",\"type\":\"uint128\"}],\"name\":\"collectProtocol\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"amount0\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"amount1\",\"type\":\"uint128\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"factory\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"fee\",\"outputs\":[{\"internalType\":\"uint24\",\"name\":\"\",\"type\":\"uint24\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"feeGrowthGlobal0X128\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"feeGrowthGlobal1X128\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount0\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"amount1\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"flash\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint16\",\"name\":\"observationCardinalityNext\",\"type\":\"uint16\"}],\"name\":\"increaseObservationCardinalityNext\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint160\",\"name\":\"sqrtPriceX96\",\"type\":\"uint160\"}],\"name\":\"initialize\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"liquidity\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"\",\"type\":\"uint128\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"maxLiquidityPerTick\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"\",\"type\":\"uint128\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"int24\",\"name\":\"tickLower\",\"type\":\"int24\"},{\"internalType\":\"int24\",\"name\":\"tickUpper\",\"type\":\"int24\"},{\"internalType\":\"uint128\",\"name\":\"amount\",\"type\":\"uint128\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"mint\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"amount0\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"amount1\",\"type\":\"uint256\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"name\":\"observations\",\"outputs\":[{\"internalType\":\"uint32\",\"name\":\"blockTimestamp\",\"type\":\"uint32\"},{\"internalType\":\"int56\",\"name\":\"tickCumulative\",\"type\":\"int56\"},{\"internalType\":\"uint160\",\"name\":\"secondsPerLiquidityCumulativeX128\",\"type\":\"uint160\"},{\"internalType\":\"bool\",\"name\":\"initialized\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint32[]\",\"name\":\"secondsAgos\",\"type\":\"uint32[]\"}],\"name\":\"observe\",\"outputs\":[{\"internalType\":\"int56[]\",\"name\":\"tickCumulatives\",\"type\":\"int56[]\"},{\"internalType\":\"uint160[]\",\"name\":\"secondsPerLiquidityCumulativeX128s\",\"type\":\"uint160[]\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"name\":\"positions\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"liquidity\",\"type\":\"uint128\"},{\"internalType\":\"uint256\",\"name\":\"feeGrowthInside0LastX128\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"feeGrowthInside1LastX128\",\"type\":\"uint256\"},{\"internalType\":\"uint128\",\"name\":\"tokensOwed0\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"tokensOwed1\",\"type\":\"uint128\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"protocolFees\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"token0\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"token1\",\"type\":\"uint128\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint8\",\"name\":\"feeProtocol0\",\"type\":\"uint8\"},{\"internalType\":\"uint8\",\"name\":\"feeProtocol1\",\"type\":\"uint8\"}],\"name\":\"setFeeProtocol\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"slot0\",\"outputs\":[{\"internalType\":\"uint160\",\"name\":\"sqrtPriceX96\",\"type\":\"uint160\"},{\"internalType\":\"int24\",\"name\":\"tick\",\"type\":\"int24\"},{\"internalType\":\"uint16\",\"name\":\"observationIndex\",\"type\":\"uint16\"},{\"internalType\":\"uint16\",\"name\":\"observationCardinality\",\"type\":\"uint16\"},{\"internalType\":\"uint16\",\"name\":\"observationCardinalityNext\",\"type\":\"uint16\"},{\"internalType\":\"uint8\",\"name\":\"feeProtocol\",\"type\":\"uint8\"},{\"internalType\":\"bool\",\"name\":\"unlocked\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"int24\",\"name\":\"tickLower\",\"type\":\"int24\"},{\"internalType\":\"int24\",\"name\":\"tickUpper\",\"type\":\"int24\"}],\"name\":\"snapshotCumulativesInside\",\"outputs\":[{\"internalType\":\"int56\",\"name\":\"tickCumulativeInside\",\"type\":\"int56\"},{\"internalType\":\"uint160\",\"name\":\"secondsPerLiquidityInsideX128\",\"type\":\"uint160\"},{\"internalType\":\"uint32\",\"name\":\"secondsInside\",\"type\":\"uint32\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"bool\",\"name\":\"zeroForOne\",\"type\":\"bool\"},{\"internalType\":\"int256\",\"name\":\"amountSpecified\",\"type\":\"int256\"},{\"internalType\":\"uint160\",\"name\":\"sqrtPriceLimitX96\",\"type\":\"uint160\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"swap\",\"outputs\":[{\"internalType\":\"int256\",\"name\":\"amount0\",\"type\":\"int256\"},{\"internalType\":\"int256\",\"name\":\"amount1\",\"type\":\"int256\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"int16\",\"name\":\"\",\"type\":\"int16\"}],\"name\":\"tickBitmap\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"tickSpacing\",\"outputs\":[{\"internalType\":\"int24\",\"name\":\"\",\"type\":\"int24\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"int24\",\"name\":\"\",\"type\":\"int24\"}],\"name\":\"ticks\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"liquidityGross\",\"type\":\"uint128\"},{\"internalType\":\"int128\",\"name\":\"liquidityNet\",\"type\":\"int128\"},{\"internalType\":\"uint256\",\"name\":\"feeGrowthOutside0X128\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"feeGrowthOutside1X128\",\"type\":\"uint256\"},{\"internalType\":\"int56\",\"name\":\"tickCumulativeOutside\",\"type\":\"int56\"},{\"internalType\":\"uint160\",\"name\":\"secondsPerLiquidityOutsideX128\",\"type\":\"uint160\"},{\"internalType\":\"uint32\",\"name\":\"secondsOutside\",\"type\":\"uint32\"},{\"internalType\":\"bool\",\"name\":\"initialized\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"token0\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"token1\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"}]'
var abiFactory = '[{\"inputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"uint24\",\"name\":\"fee\",\"type\":\"uint24\"},{\"indexed\":true,\"internalType\":\"int24\",\"name\":\"tickSpacing\",\"type\":\"int24\"}],\"name\":\"FeeAmountEnabled\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"oldOwner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"OwnerChanged\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"token0\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"token1\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"uint24\",\"name\":\"fee\",\"type\":\"uint24\"},{\"indexed\":false,\"internalType\":\"int24\",\"name\":\"tickSpacing\",\"type\":\"int24\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"pool\",\"type\":\"address\"}],\"name\":\"PoolCreated\",\"type\":\"event\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"tokenA\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"tokenB\",\"type\":\"address\"},{\"internalType\":\"uint24\",\"name\":\"fee\",\"type\":\"uint24\"}],\"name\":\"createPool\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"pool\",\"type\":\"address\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint24\",\"name\":\"fee\",\"type\":\"uint24\"},{\"internalType\":\"int24\",\"name\":\"tickSpacing\",\"type\":\"int24\"}],\"name\":\"enableFeeAmount\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint24\",\"name\":\"\",\"type\":\"uint24\"}],\"name\":\"feeAmountTickSpacing\",\"outputs\":[{\"internalType\":\"int24\",\"name\":\"\",\"type\":\"int24\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"uint24\",\"name\":\"\",\"type\":\"uint24\"}],\"name\":\"getPool\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"owner\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"parameters\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"factory\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"token0\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"token1\",\"type\":\"address\"},{\"internalType\":\"uint24\",\"name\":\"fee\",\"type\":\"uint24\"},{\"internalType\":\"int24\",\"name\":\"tickSpacing\",\"type\":\"int24\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_owner\",\"type\":\"address\"}],\"name\":\"setOwner\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"}]'

var contractV3FactoryAddress = "0x1F98431c8aD98523631AE4a59f267346ea31F984"
var contractV3SwapRouterV2Address = "0x68b3465833fb72A70ecDF485E0e4C7bD8665Fc45"

function toAmount(s, decimals) {
    return Number((BigDecimal(BigInt(s)) / BigDecimal(Math.pow(10, decimals))).toString())
}

function toInnerAmount(n, decimals) {
    return (BigDecimal(n) * BigDecimal(Math.pow(10, decimals))).toFixed(0)
}

function main() {
    // 注册Uniswap工厂合约的ABI
    exchange.IO("abi", contractV3FactoryAddress, abiFactory)

    // 注册Uniswap路由合约的ABI
    exchange.IO("abi", contractV3SwapRouterV2Address, abiRoute)

    // 获取交易对的池地址
    var tokenIn = {name : "1INCH", address: "0x111111111117dC0aa78b770fA6A738034120C302", decimals: exchange.IO("api", "0x111111111117dC0aa78b770fA6A738034120C302", "decimals")}
    var tokenOut = {name : "WETH", address: "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2", decimals: exchange.IO("api", "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2", "decimals")}
    var poolAddress = exchange.IO("api", contractV3FactoryAddress, "getPool", tokenIn.address, tokenOut.address, 10000)

    // 注册池合约ABI
    exchange.IO("abi", poolAddress, abiPool)
    
    // 获取当前配置的钱包地址
    var walletAddress = exchange.IO("address")

    // 1INCH -> WETH, tokenIn: 1INCH
    var allowanceAmount = exchange.IO("api", tokenIn.address, "allowance", walletAddress, contractV3SwapRouterV2Address)
    Log("allowanceAmount:", allowanceAmount, ", 使用toAmount()函数转换为可读数值：", toAmount(allowanceAmount, tokenIn.decimals))
    
    var balance = exchange.IO("api", "0x111111111117dC0aa78b770fA6A738034120C302", "balanceOf", walletAddress)
    var balanceOf1INCH = toAmount(balance, tokenIn.decimals)
    Log("balanceOf1INCH:", balanceOf1INCH)

    var swapAmount = 38
    if (balanceOf1INCH < swapAmount) {
        Log("钱包中", tokenIn.name, "不足，数量只有：", balanceOf1INCH)
    }

    if (toAmount(allowanceAmount, tokenIn.decimals) < swapAmount) {
        Log("授权数量不足，进行授权")
        // 也可以指定授权数量为无限，即把代码中toInnerAmount(swapAmount, tokenIn.decimals) 替换为 '0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff'
        var txApprove = exchange.IO("api", tokenIn.address, "approve", contractV3SwapRouterV2Address, toInnerAmount(swapAmount, tokenIn.decimals))
        if (!txApprove) {
            Log("授权失败")
        } else {
            for (var i = 0; i < 10; i++) {
                Sleep(5000)
                var info = exchange.IO("api", "eth", "eth_getTransactionReceipt", txApprove)
                if (info && info.gasUsed) {
                    Log("info:", info)
                    break
                }
                Log('Transaction not yet mined', txApprove)
            }
            // 再次查询授权数量
            allowanceAmount = exchange.IO("api", tokenIn.address, "allowance", walletAddress, contractV3SwapRouterV2Address)
            Log("再次查询授权数量，", "allowanceAmount:", allowanceAmount, ", 使用toAmount()函数转换为可读数值：", toAmount(allowanceAmount, tokenIn.decimals))
        }
    }

    // 兑换
    var recipientAddress = "0x0000000000000000000000000000000000000002"
    var fee = exchange.IO("encodePacked", "uint24", 10000)
    var path = tokenIn.address.slice(2).toLowerCase() + fee + tokenOut.address.slice(2).toLowerCase()
    var minOut = 1
    var amountIn = toInnerAmount(swapAmount, tokenIn.decimals)

    var swapToken = exchange.IO("encode", contractV3SwapRouterV2Address, "exactInput", {
        path: path,
        recipient: recipientAddress,
        amountIn: amountIn,
        amountOutMinimum: minOut
    })

    var data = [swapToken]
    data.push(exchange.IO("encode", contractV3SwapRouterV2Address, "unwrapWETH9(uint256,address)", 1, walletAddress))
    var tx = exchange.IO("api", contractV3SwapRouterV2Address, "multicall(uint256,bytes[])", 0, (new Date().getTime() / 1000) + 3600, data)
    Log("tx:", tx)
}

پول میں زر مبادلہ کی قیمت حاصل کریں۔

جیسا کہ ہم پہلے بیان کر چکے ہیں، جب ہم ٹوکن ایڈریس استعمال کرتے ہیں (دو ہیں، ٹوکن ان اور ٹوکن آؤٹ) اور ریٹ سیٹنگ، ہمUniswapکیFactoryمعاہدہgetPoolاس تبادلے کے مجموعہ کا ایکسچینج پول (سمارٹ کنٹریکٹ) پتہ حاصل کرنے کا طریقہ۔
ایکسچینج پول ایڈریس حاصل کرنے کے بعد، پول کنٹریکٹ کا ABI رجسٹر کریں۔ پھر آپ پول کنٹریکٹ کو کال کر سکتے ہیں۔slot0موجودہ زر مبادلہ کی قیمت سے متعلق ڈیٹا حاصل کرنے اور تبادلے کی قیمت کو مزید پارس کرنے کا طریقہ۔


            javascript
            
            
var abiRoute = '[{"inputs":[{"internalType":"address","name":"_factoryV2","type":"address"},{"internalType":"address","name":"factoryV3","type":"address"},{"internalType":"address","name":"_positionManager","type":"address"},{"internalType":"address","name":"_WETH9","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"WETH9","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"approveMax","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"approveMaxMinusOne","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"approveZeroThenMax","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"approveZeroThenMaxMinusOne","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes","name":"data","type":"bytes"}],"name":"callPositionManager","outputs":[{"internalType":"bytes","name":"result","type":"bytes"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes[]","name":"paths","type":"bytes[]"},{"internalType":"uint128[]","name":"amounts","type":"uint128[]"},{"internalType":"uint24","name":"maximumTickDivergence","type":"uint24"},{"internalType":"uint32","name":"secondsAgo","type":"uint32"}],"name":"checkOracleSlippage","outputs":[],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes","name":"path","type":"bytes"},{"internalType":"uint24","name":"maximumTickDivergence","type":"uint24"},{"internalType":"uint32","name":"secondsAgo","type":"uint32"}],"name":"checkOracleSlippage","outputs":[],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"bytes","name":"path","type":"bytes"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMinimum","type":"uint256"}],"internalType":"struct IV3SwapRouter.ExactInputParams","name":"params","type":"tuple"}],"name":"exactInput","outputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"tokenIn","type":"address"},{"internalType":"address","name":"tokenOut","type":"address"},{"internalType":"uint24","name":"fee","type":"uint24"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMinimum","type":"uint256"},{"internalType":"uint160","name":"sqrtPriceLimitX96","type":"uint160"}],"internalType":"struct IV3SwapRouter.ExactInputSingleParams","name":"params","type":"tuple"}],"name":"exactInputSingle","outputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"bytes","name":"path","type":"bytes"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"uint256","name":"amountInMaximum","type":"uint256"}],"internalType":"struct IV3SwapRouter.ExactOutputParams","name":"params","type":"tuple"}],"name":"exactOutput","outputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"tokenIn","type":"address"},{"internalType":"address","name":"tokenOut","type":"address"},{"internalType":"uint24","name":"fee","type":"uint24"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"uint256","name":"amountInMaximum","type":"uint256"},{"internalType":"uint160","name":"sqrtPriceLimitX96","type":"uint160"}],"internalType":"struct IV3SwapRouter.ExactOutputSingleParams","name":"params","type":"tuple"}],"name":"exactOutputSingle","outputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"factory","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"factoryV2","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"getApprovalType","outputs":[{"internalType":"enum IApproveAndCall.ApprovalType","name":"","type":"uint8"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"token0","type":"address"},{"internalType":"address","name":"token1","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"amount0Min","type":"uint256"},{"internalType":"uint256","name":"amount1Min","type":"uint256"}],"internalType":"struct IApproveAndCall.IncreaseLiquidityParams","name":"params","type":"tuple"}],"name":"increaseLiquidity","outputs":[{"internalType":"bytes","name":"result","type":"bytes"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"token0","type":"address"},{"internalType":"address","name":"token1","type":"address"},{"internalType":"uint24","name":"fee","type":"uint24"},{"internalType":"int24","name":"tickLower","type":"int24"},{"internalType":"int24","name":"tickUpper","type":"int24"},{"internalType":"uint256","name":"amount0Min","type":"uint256"},{"internalType":"uint256","name":"amount1Min","type":"uint256"},{"internalType":"address","name":"recipient","type":"address"}],"internalType":"struct IApproveAndCall.MintParams","name":"params","type":"tuple"}],"name":"mint","outputs":[{"internalType":"bytes","name":"result","type":"bytes"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"previousBlockhash","type":"bytes32"},{"internalType":"bytes[]","name":"data","type":"bytes[]"}],"name":"multicall","outputs":[{"internalType":"bytes[]","name":"","type":"bytes[]"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"bytes[]","name":"data","type":"bytes[]"}],"name":"multicall","outputs":[{"internalType":"bytes[]","name":"","type":"bytes[]"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes[]","name":"data","type":"bytes[]"}],"name":"multicall","outputs":[{"internalType":"bytes[]","name":"results","type":"bytes[]"}],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"positionManager","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"pull","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"refundETH","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"selfPermit","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"nonce","type":"uint256"},{"internalType":"uint256","name":"expiry","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"selfPermitAllowed","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"nonce","type":"uint256"},{"internalType":"uint256","name":"expiry","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"selfPermitAllowedIfNecessary","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"selfPermitIfNecessary","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMin","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"}],"name":"swapExactTokensForTokens","outputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"uint256","name":"amountInMax","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"}],"name":"swapTokensForExactTokens","outputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amountMinimum","type":"uint256"},{"internalType":"address","name":"recipient","type":"address"}],"name":"sweepToken","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amountMinimum","type":"uint256"}],"name":"sweepToken","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amountMinimum","type":"uint256"},{"internalType":"uint256","name":"feeBips","type":"uint256"},{"internalType":"address","name":"feeRecipient","type":"address"}],"name":"sweepTokenWithFee","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amountMinimum","type":"uint256"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"feeBips","type":"uint256"},{"internalType":"address","name":"feeRecipient","type":"address"}],"name":"sweepTokenWithFee","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"int256","name":"amount0Delta","type":"int256"},{"internalType":"int256","name":"amount1Delta","type":"int256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"uniswapV3SwapCallback","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountMinimum","type":"uint256"},{"internalType":"address","name":"recipient","type":"address"}],"name":"unwrapWETH9","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountMinimum","type":"uint256"}],"name":"unwrapWETH9","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountMinimum","type":"uint256"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"feeBips","type":"uint256"},{"internalType":"address","name":"feeRecipient","type":"address"}],"name":"unwrapWETH9WithFee","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountMinimum","type":"uint256"},{"internalType":"uint256","name":"feeBips","type":"uint256"},{"internalType":"address","name":"feeRecipient","type":"address"}],"name":"unwrapWETH9WithFee","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"value","type":"uint256"}],"name":"wrapETH","outputs":[],"stateMutability":"payable","type":"function"},{"stateMutability":"payable","type":"receive"}]';
var abiPool = '[{\"inputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"int24\",\"name\":\"tickLower\",\"type\":\"int24\"},{\"indexed\":true,\"internalType\":\"int24\",\"name\":\"tickUpper\",\"type\":\"int24\"},{\"indexed\":false,\"internalType\":\"uint128\",\"name\":\"amount\",\"type\":\"uint128\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount0\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount1\",\"type\":\"uint256\"}],\"name\":\"Burn\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"int24\",\"name\":\"tickLower\",\"type\":\"int24\"},{\"indexed\":true,\"internalType\":\"int24\",\"name\":\"tickUpper\",\"type\":\"int24\"},{\"indexed\":false,\"internalType\":\"uint128\",\"name\":\"amount0\",\"type\":\"uint128\"},{\"indexed\":false,\"internalType\":\"uint128\",\"name\":\"amount1\",\"type\":\"uint128\"}],\"name\":\"Collect\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"sender\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint128\",\"name\":\"amount0\",\"type\":\"uint128\"},{\"indexed\":false,\"internalType\":\"uint128\",\"name\":\"amount1\",\"type\":\"uint128\"}],\"name\":\"CollectProtocol\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"sender\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount0\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount1\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"paid0\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"paid1\",\"type\":\"uint256\"}],\"name\":\"Flash\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint16\",\"name\":\"observationCardinalityNextOld\",\"type\":\"uint16\"},{\"indexed\":false,\"internalType\":\"uint16\",\"name\":\"observationCardinalityNextNew\",\"type\":\"uint16\"}],\"name\":\"IncreaseObservationCardinalityNext\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint160\",\"name\":\"sqrtPriceX96\",\"type\":\"uint160\"},{\"indexed\":false,\"internalType\":\"int24\",\"name\":\"tick\",\"type\":\"int24\"}],\"name\":\"Initialize\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"address\",\"name\":\"sender\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"int24\",\"name\":\"tickLower\",\"type\":\"int24\"},{\"indexed\":true,\"internalType\":\"int24\",\"name\":\"tickUpper\",\"type\":\"int24\"},{\"indexed\":false,\"internalType\":\"uint128\",\"name\":\"amount\",\"type\":\"uint128\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount0\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount1\",\"type\":\"uint256\"}],\"name\":\"Mint\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint8\",\"name\":\"feeProtocol0Old\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"uint8\",\"name\":\"feeProtocol1Old\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"uint8\",\"name\":\"feeProtocol0New\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"uint8\",\"name\":\"feeProtocol1New\",\"type\":\"uint8\"}],\"name\":\"SetFeeProtocol\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"sender\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"int256\",\"name\":\"amount0\",\"type\":\"int256\"},{\"indexed\":false,\"internalType\":\"int256\",\"name\":\"amount1\",\"type\":\"int256\"},{\"indexed\":false,\"internalType\":\"uint160\",\"name\":\"sqrtPriceX96\",\"type\":\"uint160\"},{\"indexed\":false,\"internalType\":\"uint128\",\"name\":\"liquidity\",\"type\":\"uint128\"},{\"indexed\":false,\"internalType\":\"int24\",\"name\":\"tick\",\"type\":\"int24\"}],\"name\":\"Swap\",\"type\":\"event\"},{\"inputs\":[{\"internalType\":\"int24\",\"name\":\"tickLower\",\"type\":\"int24\"},{\"internalType\":\"int24\",\"name\":\"tickUpper\",\"type\":\"int24\"},{\"internalType\":\"uint128\",\"name\":\"amount\",\"type\":\"uint128\"}],\"name\":\"burn\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"amount0\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"amount1\",\"type\":\"uint256\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"int24\",\"name\":\"tickLower\",\"type\":\"int24\"},{\"internalType\":\"int24\",\"name\":\"tickUpper\",\"type\":\"int24\"},{\"internalType\":\"uint128\",\"name\":\"amount0Requested\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"amount1Requested\",\"type\":\"uint128\"}],\"name\":\"collect\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"amount0\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"amount1\",\"type\":\"uint128\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"uint128\",\"name\":\"amount0Requested\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"amount1Requested\",\"type\":\"uint128\"}],\"name\":\"collectProtocol\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"amount0\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"amount1\",\"type\":\"uint128\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"factory\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"fee\",\"outputs\":[{\"internalType\":\"uint24\",\"name\":\"\",\"type\":\"uint24\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"feeGrowthGlobal0X128\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"feeGrowthGlobal1X128\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount0\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"amount1\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"flash\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint16\",\"name\":\"observationCardinalityNext\",\"type\":\"uint16\"}],\"name\":\"increaseObservationCardinalityNext\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint160\",\"name\":\"sqrtPriceX96\",\"type\":\"uint160\"}],\"name\":\"initialize\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"liquidity\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"\",\"type\":\"uint128\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"maxLiquidityPerTick\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"\",\"type\":\"uint128\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"int24\",\"name\":\"tickLower\",\"type\":\"int24\"},{\"internalType\":\"int24\",\"name\":\"tickUpper\",\"type\":\"int24\"},{\"internalType\":\"uint128\",\"name\":\"amount\",\"type\":\"uint128\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"mint\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"amount0\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"amount1\",\"type\":\"uint256\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"name\":\"observations\",\"outputs\":[{\"internalType\":\"uint32\",\"name\":\"blockTimestamp\",\"type\":\"uint32\"},{\"internalType\":\"int56\",\"name\":\"tickCumulative\",\"type\":\"int56\"},{\"internalType\":\"uint160\",\"name\":\"secondsPerLiquidityCumulativeX128\",\"type\":\"uint160\"},{\"internalType\":\"bool\",\"name\":\"initialized\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint32[]\",\"name\":\"secondsAgos\",\"type\":\"uint32[]\"}],\"name\":\"observe\",\"outputs\":[{\"internalType\":\"int56[]\",\"name\":\"tickCumulatives\",\"type\":\"int56[]\"},{\"internalType\":\"uint160[]\",\"name\":\"secondsPerLiquidityCumulativeX128s\",\"type\":\"uint160[]\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"name\":\"positions\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"liquidity\",\"type\":\"uint128\"},{\"internalType\":\"uint256\",\"name\":\"feeGrowthInside0LastX128\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"feeGrowthInside1LastX128\",\"type\":\"uint256\"},{\"internalType\":\"uint128\",\"name\":\"tokensOwed0\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"tokensOwed1\",\"type\":\"uint128\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"protocolFees\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"token0\",\"type\":\"uint128\"},{\"internalType\":\"uint128\",\"name\":\"token1\",\"type\":\"uint128\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint8\",\"name\":\"feeProtocol0\",\"type\":\"uint8\"},{\"internalType\":\"uint8\",\"name\":\"feeProtocol1\",\"type\":\"uint8\"}],\"name\":\"setFeeProtocol\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"slot0\",\"outputs\":[{\"internalType\":\"uint160\",\"name\":\"sqrtPriceX96\",\"type\":\"uint160\"},{\"internalType\":\"int24\",\"name\":\"tick\",\"type\":\"int24\"},{\"internalType\":\"uint16\",\"name\":\"observationIndex\",\"type\":\"uint16\"},{\"internalType\":\"uint16\",\"name\":\"observationCardinality\",\"type\":\"uint16\"},{\"internalType\":\"uint16\",\"name\":\"observationCardinalityNext\",\"type\":\"uint16\"},{\"internalType\":\"uint8\",\"name\":\"feeProtocol\",\"type\":\"uint8\"},{\"internalType\":\"bool\",\"name\":\"unlocked\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"int24\",\"name\":\"tickLower\",\"type\":\"int24\"},{\"internalType\":\"int24\",\"name\":\"tickUpper\",\"type\":\"int24\"}],\"name\":\"snapshotCumulativesInside\",\"outputs\":[{\"internalType\":\"int56\",\"name\":\"tickCumulativeInside\",\"type\":\"int56\"},{\"internalType\":\"uint160\",\"name\":\"secondsPerLiquidityInsideX128\",\"type\":\"uint160\"},{\"internalType\":\"uint32\",\"name\":\"secondsInside\",\"type\":\"uint32\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"bool\",\"name\":\"zeroForOne\",\"type\":\"bool\"},{\"internalType\":\"int256\",\"name\":\"amountSpecified\",\"type\":\"int256\"},{\"internalType\":\"uint160\",\"name\":\"sqrtPriceLimitX96\",\"type\":\"uint160\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"swap\",\"outputs\":[{\"internalType\":\"int256\",\"name\":\"amount0\",\"type\":\"int256\"},{\"internalType\":\"int256\",\"name\":\"amount1\",\"type\":\"int256\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"int16\",\"name\":\"\",\"type\":\"int16\"}],\"name\":\"tickBitmap\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"tickSpacing\",\"outputs\":[{\"internalType\":\"int24\",\"name\":\"\",\"type\":\"int24\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"int24\",\"name\":\"\",\"type\":\"int24\"}],\"name\":\"ticks\",\"outputs\":[{\"internalType\":\"uint128\",\"name\":\"liquidityGross\",\"type\":\"uint128\"},{\"internalType\":\"int128\",\"name\":\"liquidityNet\",\"type\":\"int128\"},{\"internalType\":\"uint256\",\"name\":\"feeGrowthOutside0X128\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"feeGrowthOutside1X128\",\"type\":\"uint256\"},{\"internalType\":\"int56\",\"name\":\"tickCumulativeOutside\",\"type\":\"int56\"},{\"internalType\":\"uint160\",\"name\":\"secondsPerLiquidityOutsideX128\",\"type\":\"uint160\"},{\"internalType\":\"uint32\",\"name\":\"secondsOutside\",\"type\":\"uint32\"},{\"internalType\":\"bool\",\"name\":\"initialized\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"token0\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"token1\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"}]'
var abiFactory = '[{\"inputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"uint24\",\"name\":\"fee\",\"type\":\"uint24\"},{\"indexed\":true,\"internalType\":\"int24\",\"name\":\"tickSpacing\",\"type\":\"int24\"}],\"name\":\"FeeAmountEnabled\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"oldOwner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"OwnerChanged\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"token0\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"token1\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"uint24\",\"name\":\"fee\",\"type\":\"uint24\"},{\"indexed\":false,\"internalType\":\"int24\",\"name\":\"tickSpacing\",\"type\":\"int24\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"pool\",\"type\":\"address\"}],\"name\":\"PoolCreated\",\"type\":\"event\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"tokenA\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"tokenB\",\"type\":\"address\"},{\"internalType\":\"uint24\",\"name\":\"fee\",\"type\":\"uint24\"}],\"name\":\"createPool\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"pool\",\"type\":\"address\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint24\",\"name\":\"fee\",\"type\":\"uint24\"},{\"internalType\":\"int24\",\"name\":\"tickSpacing\",\"type\":\"int24\"}],\"name\":\"enableFeeAmount\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint24\",\"name\":\"\",\"type\":\"uint24\"}],\"name\":\"feeAmountTickSpacing\",\"outputs\":[{\"internalType\":\"int24\",\"name\":\"\",\"type\":\"int24\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"uint24\",\"name\":\"\",\"type\":\"uint24\"}],\"name\":\"getPool\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"owner\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"parameters\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"factory\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"token0\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"token1\",\"type\":\"address\"},{\"internalType\":\"uint24\",\"name\":\"fee\",\"type\":\"uint24\"},{\"internalType\":\"int24\",\"name\":\"tickSpacing\",\"type\":\"int24\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_owner\",\"type\":\"address\"}],\"name\":\"setOwner\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"}]'

var contractV3FactoryAddress = "0x1F98431c8aD98523631AE4a59f267346ea31F984"
var contractV3SwapRouterV2Address = "0x68b3465833fb72A70ecDF485E0e4C7bD8665Fc45"

function toAmount(s, decimals) {
    return Number((BigDecimal(BigInt(s)) / BigDecimal(Math.pow(10, decimals))).toString())
}

function toInnerAmount(n, decimals) {
    return (BigDecimal(n) * BigDecimal(Math.pow(10, decimals))).toFixed(0)
}

function main() {
    // 注册Uniswap工厂合约的ABI
    exchange.IO("abi", contractV3FactoryAddress, abiFactory)

    // 注册Uniswap路由合约的ABI
    exchange.IO("abi", contractV3SwapRouterV2Address, abiRoute)

    // 获取交易对的池地址
    var tokenIn = {name : "1INCH", address: "0x111111111117dC0aa78b770fA6A738034120C302", decimals: exchange.IO("api", "0x111111111117dC0aa78b770fA6A738034120C302", "decimals")}
    var tokenOut = {name : "WETH", address: "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2", decimals: exchange.IO("api", "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2", "decimals")}
    var poolAddress = exchange.IO("api", contractV3FactoryAddress, "getPool", tokenIn.address, tokenOut.address, 10000)

    // 注册池合约ABI
    exchange.IO("abi", poolAddress, abiPool)
    
    var slot0 = exchange.IO("api", poolAddress, "slot0")
    Log("slot0:", slot0)
}

ایکسچینج پول کی قیمت کی معلومات حاصل کریں اور کوڈ پرنٹ کریں۔slot0متغیر:


            javascript
            
            
{
    "feeProtocol":0,
    "unlocked":true,
    "sqrtPriceX96":"1128983883551457130720648561",
    "tick":"-85025",
    "observationIndex":5,
    "observationCardinality":6,
    "observationCardinalityNext":6
}

قیمت کی اہم معلومات کا ڈیٹا درج کیا جاتا ہے۔sqrtPriceX96فیلڈ میں، ایکسچینج پول کی موجودہ قیمت کو ایکسچینج کمبی نیشن کے ٹوکن پریزیشن ڈیٹا کی بنیاد پر شمار کرنے کی ضرورت ہے۔Uniswapجیسا کہ دستاویز میں بیان کیا گیا ہے، ہم حساب کرنے کے لیے ایک فنکشن نافذ کرتے ہیں:


            javascript
            
            
function computePoolPrice(decimals0, decimals1, sqrtPriceX96) {
    // sqrtPriceX96 = sqrt(price) * 2^96
    [decimals0, decimals1, sqrtPriceX96] = [decimals0, decimals1, sqrtPriceX96].map(BigInt);
    const TWO = BigInt(2);
    const TEN = BigInt(10);
    const SIX_TENTH = BigInt(1000000);
    const Q192 = (TWO ** BigInt(96)) ** TWO;
    return (
        Number((sqrtPriceX96 ** TWO * TEN ** decimals0 * SIX_TENTH) / (Q192 * TEN ** decimals1)) /
        Number(SIX_TENTH)
    );
}

ٹوکن مجموعہ کا حساب لگانے کے لیے اس فنکشن کا استعمال کریں۔1INCH/WETH10,000 کی فیس کے ساتھ ایکسچینج پول کی موجودہ قیمت۔


            javascript
            
            
function computePoolPrice(decimals0, decimals1, sqrtPriceX96) {
    // sqrtPriceX96 = sqrt(price) * 2^96
    [decimals0, decimals1, sqrtPriceX96] = [decimals0, decimals1, sqrtPriceX96].map(BigInt);
    const TWO = BigInt(2);
    const TEN = BigInt(10);
    const SIX_TENTH = BigInt(1000000);
    const Q192 = (TWO ** BigInt(96)) ** TWO;
    return (
        Number((sqrtPriceX96 ** TWO * TEN ** decimals0 * SIX_TENTH) / (Q192 * TEN ** decimals1)) /
        Number(SIX_TENTH)
    );
}

function main() {
    var tokenIn = {name : "1INCH", address: "0x111111111117dC0aa78b770fA6A738034120C302", decimals: exchange.IO("api", "0x111111111117dC0aa78b770fA6A738034120C302", "decimals")}
    var tokenOut = {name : "WETH", address: "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2", decimals: exchange.IO("api", "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2", "decimals")}

    // 获取的slot0变量中"sqrtPriceX96":"1128983883551457130720648561",
    var price = computePoolPrice(tokenIn.decimals, tokenOut.decimals, "1128983883551457130720648561")
    Log("price:", price)
}

پرنٹنگ متغیراتpriceدکھائیں:price: 0.000203(1 1INCH 0.000203 WETH میں بدلا جاتا ہے)۔

یونیسیاپ V3 ٹریڈنگ لائبریری

مقداری تجارتی پلیٹ فارم کے موجد نے ایک پیکج جاری کیا ہے۔Uniswapٹیمپلیٹجس میں تبادلے، قیمت کا حصول، اور والیٹ بیلنس کے سوال کا احساس ہوا ہے، آپ کو اوپر بیان کردہ مواد کے مطابق کوڈ کو دہرانے کی ضرورت نہیں ہے، آپ مزید گہرائی سے سیکھنے اور Web3 ایپلیکیشنز کو تیار کر سکتے ہیں۔ .
اس ٹیمپلیٹ لائبریری میں سیکھنے کے قابل بہت سی تفصیلات ہیں:

ٹوکن کی معلومات خود بخود حاصل کریں۔
وضاحت کرنے کے لیے کوڈ کا ایک حصہ لیں، جب ٹیمپلیٹ کے پیرامیٹرزAutoFetchTokensصحیح پر سیٹ ہونے پر، ٹیمپلیٹ پروگرام خود بخود رسائی حاصل کر لے گا۔https://tokens.coingecko.com/uniswap/all.jsonتمام ٹوکن معلومات کو لنک کریں، حاصل کریں اور خود بخود اس پر کارروائی کریں۔ اس طرح آپ کو حکمت عملی کوڈ میں دستی طور پر ٹوکن شامل کرنے کی ضرورت نہیں ہے (ورنہ آپ کو استعمال کرنے کی ضرورت ہوگیaddToken(name, address)ٹوکن شامل کریں)۔
```
            javascript
            
            
     if (AutoFetchTokens) {
          let res = JSON.parse(HttpQuery("https://tokens.coingecko.com/uniswap/all.json"))
          Log("fetch", res.tokens.length, "tokens from", res.name)
          res.tokens.forEach(function(token) {
              if (token.chainId == chainId && token.symbol != "WETH") {
                  self.tokenInfo[token.symbol] = {
                      name: token.symbol,
                      decimals: token.decimals,
                      address: token.address
                  }
              }
          })
      }  
```

چین کی ترتیبات کے مطابق مختلف معاہدے کے پتوں کو اپنائیں
یہ ٹیمپلیٹ سیٹ کرتا ہے۔ChainTypeپیرامیٹرز، ایک سے زیادہ زنجیروں کو سوئچ کرنے کی حمایت کرتے ہیں:


            desc
            
            
  'https://rpc.ankr.com/eth',
  'https://arb1.arbitrum.io/rpc',
  'https://mainnet.optimism.io/',
  'https://rpc.ankr.com/avalanche',
  'https://polygon-rpc.com',
  'https://rpc.ankr.com/celo',

اقتباس کوڈ:


            javascript
            
            
      if (typeof(ChainType) === 'number') {
          let chainRpc = [
              '',
              'https://rpc.ankr.com/eth',
              'https://arb1.arbitrum.io/rpc',
              'https://mainnet.optimism.io/',
              'https://rpc.ankr.com/avalanche',
              'https://polygon-rpc.com',
              'https://rpc.ankr.com/celo',
              //'https://mainnet.aurora.dev',
              //'https://bsc-dataseed.binance.org',
              //'https://exchainrpc.okex.org'
          ][ChainType]
          if (chainRpc && chainRpc.length > 0) {
              e.IO("base", chainRpc)
              Log("change base rpc to", chainRpc)
          }
      }

Ethereum کے RPC طریقہ کو کال کرناeth_chainIdموجودہ سوالchainId، اور پھر کے مطابقchainIdWETH ایڈریس کو اپنانے کے لیے،Uniswapمعاہدے کے پتے کی ایک سیریز،USDTسمارٹ کنٹریکٹ کا کنٹریکٹ ایڈریس مختلف زنجیروں پر مختلف ہو سکتا ہے۔

اقتباس کوڈ:


            javascript
            
            
      // https://docs.uniswap.org/contracts/v3/reference/deployments
      let WETHAddress = {
          1: "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2", // Ethereum
          3: "0xc778417E063141139Fce010982780140Aa0cD5Ab", // Ropsten
          4: "0xc778417E063141139Fce010982780140Aa0cD5Ab", // Rinkeby
          5: "0xB4FBF271143F4FBf7B91A5ded31805e42b2208d6", // Goerli
          42: "0xd0A1E359811322d97991E03f863a0C30C2cF029C", // Kovan
          10: "0x4200000000000000000000000000000000000006", // Optimism
          69: "0x4200000000000000000000000000000000000006", // Optimistic Kovan
          42161: "0x82aF49447D8a07e3bd95BD0d56f35241523fBab1", // Arbitrum One
          421611: "0xB47e6A5f8b33b3F17603C83a0535A9dcD7E32681", // Arbitrum Rinkeby
          137: "0x0d500B1d8E8eF31E21C99d1Db9A6444d3ADf1270", // Polygon
          80001: "0x9c3C9283D3e44854697Cd22D3Faa240Cfb032889", // Polygon Mumbai
      }

      let chainId = e.IO("api", "ETH", "eth_chainId")
      if (chainId) {
          chainId = Number(chainId)
          Log("chainId: ", chainId)
          let addr = WETHAddress[chainId]
          if (addr) {
              Log("Register WETH address", addr)
              self.addToken("ETH", addr)
          }
          if (chainId == 42220) {
              // Celo Address
              ContractV3Factory = '0xAfE208a311B21f13EF87E33A90049fC17A7acDEc'
              ContractV3SwapRouterV2 = '0x5615CDAb10dc425a742d643d949a7F474C01abc4'
              self.addToken('CELO', '0x471ece3750da237f93b8e339c536989b8978a438')
          } else if (chainId == 42161) {
              self.addToken('USDT', '0xfd086bc7cd5c481dcc9c85ebe478a1c0b69fcbb9')
          }
      } else {
          panic("get chain Id error")
      }

"Uniswap V3 ٹریڈنگ لائبریری" کا استعمال

اس سانچے میں$.testUniswap()فنکشن ایک ایسا فنکشن ہے جو ٹیمپلیٹ کی فعالیت کو جانچتا ہے اس کا کوڈ مثال دیتا ہے کہ ٹیمپلیٹ کال کو کیسے استعمال کیا جائے:


            javascript
            
            
$.testUniswap = function() {
    let ex = $.NewUniswapV3()
    Log("walletAddress: ", ex.walletAddress)
    let tokenAddressMap = {
        "USDT": "0xdac17f958d2ee523a2206206994597c13d831ec7",
        "1INCH": "0x111111111117dC0aa78b770fA6A738034120C302",
        "USDC": "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
        "DAI": "0x6b175474e89094c44da98b954eedeac495271d0f",
    }
    for (let name in tokenAddressMap) {
        ex.addToken(name, tokenAddressMap[name])
    }

    Log(ex.getPrice('ETH_USDT'))
    Log(ex.getPrice('1INCH_USDT'))

    // swap 0.01 ETH to USDT
    Log(ex.swapToken('ETH', 0.01, 'USDT'))
    let usdtBalance = ex.balanceOf('USDT')
    Log("balance of USDT", usdtBalance)

    // swap USDT to DAI then DAI to ETH
    Log(ex.swapToken('USDT', usdtBalance, 'DAI,ETH'))

    Log("balance of ETH", ex.getETHBalance())

    // Log(ex.sendETH('0x11111', 0.02))

    // ...
}

جب کوئی حکمت عملی "Uniswap V3 Trading Library" کا حوالہ دیتی ہے (ٹیمپلیٹ لائبریری کا حوالہ دینے کے طریقہ کے بارے میں معلومات کے لیے، براہ کرم FMZ پلیٹ فارم دستاویزات سے رجوع کریں)، آپ اس ٹیمپلیٹ لائبریری میں انکیپسلیٹڈ فنکشنز کو کال کر سکتے ہیں۔

نامی ایک فائل بنائیںexمتغیرات، "Uniswap V3 Trading Library" ٹیمپلیٹ کے ذریعے encapsulated انٹرفیس فنکشن کو کال کریں$.NewUniswapV3()ایک آبجیکٹ بنائیں اور اسے تفویض کریں۔ex。


            javascript
            
            
let ex = $.NewUniswapV3()

استعمال کریںexکسی چیز کے ممبر کے افعالaddToken()ٹوکن کی معلومات (رجسٹر) شامل کریں۔


            javascript
            
            
  let tokenAddressMap = {
      "USDT": "0xdac17f958d2ee523a2206206994597c13d831ec7",
      "1INCH": "0x111111111117dC0aa78b770fA6A738034120C302",
      "USDC": "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
      "DAI": "0x6b175474e89094c44da98b954eedeac495271d0f",
  }
  for (let name in tokenAddressMap) {
      ex.addToken(name, tokenAddressMap[name])
  }

اگر آپ کسی خاص تجارتی جوڑے کی ایکسچینج پول قیمت حاصل کرنا اور پرنٹ کرنا چاہتے ہیں، تو آپ استعمال کر سکتے ہیں۔exکسی چیز کے ممبر کے افعالgetPrice()، آپ لکھ سکتے ہیں:


            javascript
            
            
  Log(ex.getPrice('ETH_USDT'))
  Log(ex.getPrice('1INCH_USDT'))

اگر آپ چھٹکارا آپریشن کرنا چاہتے ہیں، تو آپ استعمال کر سکتے ہیں۔exکسی چیز کے ممبر کے افعالswapToken()تبادلے کو انجام دیں:


            javascript
            
            
  // swap 0.01 ETH to USDT
  Log(ex.swapToken('ETH', 0.01, 'USDT'))
  let usdtBalance = ex.balanceOf('USDT')
  Log("balance of USDT", usdtBalance)

  // swap USDT to DAI then DAI to ETH
  Log(ex.swapToken('USDT', usdtBalance, 'DAI,ETH'))

واقعات کی بازیافت کریں۔

اس باب میں، ہم سیکھیں گے کہ سمارٹ کنٹریکٹس کے ذریعے جاری ہونے والے ایونٹس کو پڑھنے کے لیے موجد مقداری تجارتی پلیٹ فارم کا استعمال Ethereum ورچوئل مشین کے لاگ میں کیا جاتا ہے۔

eth_getLogs

سمارٹ معاہدوں کے ذریعہ جاری کردہ واقعات سے استفسار کرنے کے لیے، آپ کو Ethereum کا RPC طریقہ استعمال کرنے کی ضرورت ہے۔eth_getLogs, آن-چین لاگ ڈیٹا حاصل کریں ہم نے پہلے ہی اپنے پچھلے کورس میں Ethereum RPC نوڈ کو کال کرنے کا طریقہ بتا دیا ہے۔
مثال کے طور پر، ہم حاصل کرتے ہیںWETHمعاہدے کے واقعات کو ایف ایم زیڈ کا استعمال کرتے ہوئے کوڈ کیا جا سکتا ہے۔ڈیبگنگ ٹولزٹیسٹ، ایکسچینج آبجیکٹ کے ذریعہ ترتیب دیا گیا RPC نوڈ ایتھریم مین نیٹ ورک نوڈ ہے، جب کال کرتے ہیںeth_getLogsطریقہ استعمال کرتے وقت ہم نے تین پیرامیٹرز بتائے۔fromBlock、toBlock、address، ہم بلاک کے اندر ڈیٹا تک استفسار کو محدود کرنے کے لیے fromBlock اور toBlock پیرامیٹرز کا استعمال کرتے ہیں:


            javascript
            
            
function toAmount(s, decimals) {
    return Number((BigDecimal(BigInt(s)) / BigDecimal(Math.pow(10, decimals))).toString())
}

function toInnerAmount(n, decimals) {
    return (BigDecimal(n) * BigDecimal(Math.pow(10, decimals))).toFixed(0)
}

function main() {
    // getBlockNumber
    var blockNumber = exchange.IO("api", "eth", "eth_blockNumber")
    Log("blockNumber:", blockNumber)

    // get logs
    var fromBlock = "0x" + (toAmount(blockNumber, 0) - 1).toString(16)
    var toBlock = "0x" + toAmount(blockNumber, 0).toString(16)
    var params = {
        "fromBlock" : fromBlock,
        "toBlock" : toBlock,
        "address" : "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2"   // WETH合约的地址
    }
    var logs = exchange.IO("api", "eth", "eth_getLogs", params)

    // 由于数据量比较大，如果使用Log函数打印，数据会被截断。使用return将完整数据返回在页面「函数结果」编辑框中
    return logs   
}

ہمیں لاگز کا ڈیٹا ملتا ہے چونکہ ڈیٹا بڑا ہے، ہم کچھ مواد کو چھوڑ دیتے ہیں:


            javascript
            
            
[{
	"data": "0x00000000000000000000000000000000000000000000000001c1a55000000000",
	"topics": ["0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef", "0x0000000000000000000000006b75d8af000000e20b7a7ddf000ba900b4009a80", "0x000000000000000000000000bcb095c1f9c3dc02e834976706c87dee5d0f1fb6"],
	"transactionHash": "0x27f9bf5abe3148169b4b85a83e1de32bd50eb81ecc52e5af006157d93353e4c4",
	"transactionIndex": "0x0",
	"removed": false,
	"address": "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
	"blockHash": "0x847be24a7b159c292bda030a011dfec89487b70e71eed486969b032d6ef04bad",
	"blockNumber": "0x109b1cc",
	"logIndex": "0x0"
}, {
	"data": "0x00000000000000000000000000000000000000000000000008ea20cdea027c00",
	"logIndex": "0x5",
	"topics": ["0xe1fffcc4923d04b559f4d29a8bfc6cda04eb5b0d3c460751c2402c5c5cc9109c", "0x0000000000000000000000007a250d5630b4cf539739df2c5dacb4c659f2488d"],
	"address": "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
	"blockHash": "0x847be24a7b159c292bda030a011dfec89487b70e71eed486969b032d6ef04bad",
	"blockNumber": "0x109b1cc",
	"removed": false,
	"transactionHash": "0xace3afa02e8af5d1ef6fc1635fbdf7bee37624547937ea5272c23968dd034c09",
	"transactionIndex": "0x1"
},

...

{
	"blockNumber": "0x109b1cd",
	"address": "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
	"data": "0x00000000000000000000000000000000000000000000000002c053531ab8a000",
	"logIndex": "0xd3",
	"removed": false,
	"topics": ["0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef", "0x0000000000000000000000001111111254eeb25477b68fb85ed929f73a960582", "0x000000000000000000000000252ba9b5916171dbdadd2cec7f91875a006955d0"],
	"transactionHash": "0x3012b82891f85b077cfe1c12cb9722b93c696ef2c37d67981ccddcc9c3396aca",
	"transactionIndex": "0x8d",
	"blockHash": "0xcd3d567c9bd02a4549b1de0dc638ab5523e847c3c156b096424f56c633000fd9"
}, {
	"topics": ["0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef", "0x00000000000000000000000012b791bb27b3a4ee958b5a435fea7d49ec076e9c", "0x000000000000000000000000ef1c6e67703c7bd7107eed8303fbe6ec2554bf6b"],
	"transactionIndex": "0x91",
	"logIndex": "0xdb",
	"removed": false,
	"blockNumber": "0x109b1cd",
	"data": "0x0000000000000000000000000000000000000000000000000164f2434262e1cc",
	"transactionHash": "0x6aa8d80daf42f442591e7530e31323d05e1d6dd9f9f9b9c102e157d89810c048",
	"address": "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
	"blockHash": "0xcd3d567c9bd02a4549b1de0dc638ab5523e847c3c156b096424f56c633000fd9"
}, {
	"address": "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
	"blockHash": "0xcd3d567c9bd02a4549b1de0dc638ab5523e847c3c156b096424f56c633000fd9",
	"blockNumber": "0x109b1cd",
	"logIndex": "0xde",
	"removed": false,
	"topics": ["0x7fcf532c15f0a6db0bd6d0e038bea71d30d808c7d98cb3bf7268a95bf5081b65", "0x000000000000000000000000ef1c6e67703c7bd7107eed8303fbe6ec2554bf6b"],
	"data": "0x0000000000000000000000000000000000000000000000000164f2434262e1cc",
	"transactionHash": "0x6aa8d80daf42f442591e7530e31323d05e1d6dd9f9f9b9c102e157d89810c048",
	"transactionIndex": "0x91"
}]

آپ دیکھ سکتے ہیں کہ لاگ ڈیٹا میں مختلف واقعات ہیں اگر ہم صرف اس کی پرواہ کرتے ہیں۔Transferایونٹ کو ان ڈیٹا میں تبدیل کرنے کی ضرورت ہے۔Transferواقعات کو فلٹر کیا جاتا ہے۔

نوشتہ جات بازیافت کریں۔

ایتھریم لاگز کو دو حصوں میں تقسیم کیا گیا ہے: 1. موضوعtopics2. ڈیٹاdata。

تھیمtopics
کی طرف سےeth_getLogsمثال کے طور پر باب ٹیسٹ کے کوڈ چلانے والے نتائج کو لیں۔topicsفیلڈ کا ڈیٹا ہے:
```
            desc
            
            
"topics": ["0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef", "0x00000000000000000000000012b791bb27b3a4ee958b5a435fea7d49ec076e9c", "0x000000000000000000000000ef1c6e67703c7bd7107eed8303fbe6ec2554bf6b"],  
```
یہtopics(موضوع) فیلڈ کی قدر ایک صف کا ڈھانچہ ہے جو واقعہ کی وضاحت کرتا ہے۔ یہ شرط ہے کہ اس کی (سرنی) کی لمبائی 4 سے زیادہ نہیں ہو سکتی، اور پہلا عنصر ایونٹ کی دستخطی ہیش ویلیو ہے۔
موجد مقداری تجارتی پلیٹ فارم میں، ہم استعمال کرتے ہیں۔Encodeفنکشن درج ذیل کوڈ کا استعمال کرتے ہوئے دستخطی ہیش ویلیو کا حساب لگا سکتا ہے۔
```
            javascript
            
            
function main() {
    var eventFunction = "Transfer(address,address,uint256)"
    var eventHash = Encode("keccak256", "string", "hex", eventFunction)
    Log("eventHash:", "0x" + eventHash)
    // eventHash: 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
}
```
حساب لگایاTransfer(address,address,uint256)کیkeccak256ہیش ویلیو (ہیکس انکوڈنگ) ہے۔0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef。

topicsفیلڈ کی قدر ایک صف کا ڈھانچہ ہے، دوسرا عنصر اور تیسرا عنصر یہ ہیں:
- بھیجنے کا پتہfrom
- وصول کرنے کا پتہto

ڈیٹاdata

dataفیلڈ کا ڈیٹا ہے:


            desc
            
            
"data": "0x0000000000000000000000000000000000000000000000000164f2434262e1cc",

ایونٹ میں کچھ پیرامیٹرز (سمارٹ کنٹریکٹ کے سالیڈیٹی کوڈ میں انڈیکسڈ ڈیکلریشن کے بغیر پیرامیٹرز) کو اس میں محفوظ کیا جائے گا۔dataحصہ

اس ڈیٹا کو پارس کر رہا ہے۔0x0000000000000000000000000000000000000000000000000164f2434262e1cc


            javascript
            
            
function toAmount(s, decimals) {
    return Number((BigDecimal(BigInt(s)) / BigDecimal(Math.pow(10, decimals))).toString())
}

function main() {
    var value = "0x0000000000000000000000000000000000000000000000000164f2434262e1cc"
    Log(toAmount(value, 0) / 1e18)  // 0.10047146239950075
}

ڈیٹا ہے: 0.10047146239950075،dataڈیٹا منتقلی کی رقم کے مساوی ہے۔

مندرجہ بالا مواد کی وضاحت اور مشق کرنے کے بعد، آپ تیار ہیں. ہم لاگز کو بازیافت کرنا شروع کر سکتے ہیں:


            javascript
            
            
function toAmount(s, decimals) {
    return Number((BigDecimal(BigInt(s)) / BigDecimal(Math.pow(10, decimals))).toString())
}

function toInnerAmount(n, decimals) {
    return (BigDecimal(n) * BigDecimal(Math.pow(10, decimals))).toFixed(0)
}

function main() {
    // getBlockNumber
    var blockNumber = exchange.IO("api", "eth", "eth_blockNumber")
    Log("blockNumber:", blockNumber)

    // get logs
    var fromBlock = "0x" + (toAmount(blockNumber, 0) - 1).toString(16)
    var toBlock = "0x" + toAmount(blockNumber, 0).toString(16)
    var params = {
        "fromBlock" : fromBlock,
        "toBlock" : toBlock,
        "address" : "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2"
    }
    var logs = exchange.IO("api", "eth", "eth_getLogs", params)

    // 遍历logs
    var eventFunction = "Transfer(address,address,uint256)"
    var eventHash = "0x" + Encode("keccak256", "string", "hex", eventFunction)
    Log("eventHash:", eventHash)

    var counter = 0
    for (var i = logs.length - 1; i >= 0 && counter < 10; i--) {
        if (logs[i].topics[0] == eventHash) {
            Log("Event Transfer, data:", toAmount(logs[i].data, 0) / 1e18, ", blockNumber:", toAmount(logs[i].blockNumber, 0), ", transactionHash:", logs[i].transactionHash,
              ", log:", logs[i])
            counter++
        }
    }
}

موجودhttps://etherscan.io/استفسار پر:

FMZ ڈیبگنگ ٹول میں ٹیسٹ کوڈ چلانے کے نتائج:

بازیافت کی ضروریات کے مطابق ، اس کی تجزیہ بھی کی جاسکتی ہے۔from，toفیلڈ کا ڈیٹا، مثال کے طور پر:


            javascript
            
            
function main() {
    var from = "0x00000000000000000000000012b791bb27b3a4ee958b5a435fea7d49ec076e9c"
    var address = "0x" + exchange.IO("encodePacked", "address", from)
    Log("address:", address)
}

آپریشن کے نتائج:

address: 0x12b791bb27b3a4ee958b5a435fea7d49ec076e9c

معاہدے کے واقعات کی نگرانی کریں۔

کیونکہڈیبگنگ ٹولزکوڈ کو صرف تھوڑے وقت کے لیے ٹیسٹ کیا جا سکتا ہے، اور کوڈ کے مکمل ہونے کے بعد ہی مواد کو ظاہر کرنا اور لاگز کو حقیقی وقت میں آؤٹ پٹ کرنا ناممکن ہے۔ اس سیکشن میں، ہم جانچ کے لیے ایک حقیقی اکاؤنٹ بنانے کے لیے انوینٹر کوانٹیٹیو ٹریڈنگ پلیٹ فارم کا استعمال کرتے ہیں۔

یہاں ہم Ethereum mainnet استعمال کرتے ہیں، آئیے مانیٹر کرتے ہیں۔USDTیہ کرنسی معاہدہTransfer(address,address,uint256)ایونٹس، جو ہم نے پچھلی کلاس میں سیکھا اس کی بنیاد پر، ہم نے سمارٹ کنٹریکٹ ایونٹ کی مسلسل نگرانی کی ایک مثال ڈیزائن اور لکھی:


            javascript
            
            
function toAmount(s, decimals) {
    return Number((BigDecimal(BigInt(s)) / BigDecimal(Math.pow(10, decimals))).toString())
}

function toInnerAmount(n, decimals) {
    return (BigDecimal(n) * BigDecimal(Math.pow(10, decimals))).toFixed(0)
}

function addEventListener(contractAddress, event, callBack) {
    var self = {}
    self.eventHash = "0x" + Encode("keccak256", "string", "hex", event)
    self.contractAddress = contractAddress
    self.latestBlockNumber = 0
    self.fromBlockNumber = 0
    self.firstBlockNumber = 0
    /* TODO: test
    self.isFirst = true 
    */ 

    self.getBlockNumber = function() {
        var maxTry = 10
        for (var i = 0; i < maxTry; i++) {
            var ret = exchange.IO("api", "eth", "eth_blockNumber")
            if (ret) {
                return toAmount(ret, 0)
            }
            Sleep(5000)
        }
        throw "getBlockNumber failed"
    }

    self.run = function() {
        var currBlockNumber = self.getBlockNumber()
        var fromBlock = "0x" + self.fromBlockNumber.toString(16)
        var toBlock = "0x" + currBlockNumber.toString(16)
        var params = {
            "fromBlock" : fromBlock, 
            "toBlock" : toBlock, 
            "address" : self.contractAddress, 
            "topics" : [self.eventHash]
        }
        // Log("fromBlockNumber:", self.fromBlockNumber, ", currBlockNumber:", currBlockNumber, "#FF0000")
        
        var logs = exchange.IO("api", "eth", "eth_getLogs", params)
        if (!logs) {
            return 
        }

        for (var i = 0; i < logs.length; i++) {
            if (toAmount(logs[i].blockNumber, 0) > self.latestBlockNumber) {
                /* TODO: test
                if (self.isFirst) {
                    self.firstBlockNumber = toAmount(logs[i].blockNumber, 0)
                    Log("firstBlockNumber:", self.firstBlockNumber)
                    self.isFirst = false 
                }
                */

                callBack(logs[i])
            }
        }

        self.latestBlockNumber = currBlockNumber
        self.fromBlockNumber = self.latestBlockNumber - 1
    }

    self.latestBlockNumber = self.getBlockNumber()
    self.fromBlockNumber = self.latestBlockNumber - 1

    return self
}

var listener = null 
function main() {
    var event = "Transfer(address,address,uint256)"
    var contractAddress = "0xdac17f958d2ee523a2206206994597c13d831ec7"
    var decimals = exchange.IO("api", contractAddress, "decimals")
    Log(exchange.IO("api", contractAddress, "name"), " decimals:", decimals)

    listener = addEventListener(contractAddress, event, function(log) {        
        var fromAddress = "0x" + exchange.IO("encodePacked", "address", log.topics[1])
        var toAddress = "0x" + exchange.IO("encodePacked", "address", log.topics[2])
        Log("Transfer:", fromAddress, "->", toAddress, ", value:", toAmount(log.data, decimals), ", blockNumber:", toAmount(log.blockNumber, 0))
        
        /* TODO: test
        arrLog.push(log)
        */
    })

    while (true) {
        listener.run()
        Sleep(5000)
    }
}

/* TODO: test
var arrLog = []
function onexit() {
    Log("结束运行，验证记录")
    var firstBlockNumber = listener.firstBlockNumber
    var endBlockNumber = listener.latestBlockNumber

    Log("getLogs, from:", firstBlockNumber, " -> to:", endBlockNumber)
    var fromBlock = "0x" + (firstBlockNumber).toString(16)
    var toBlock = "0x" + (endBlockNumber).toString(16)
    var params = {
        "fromBlock" : fromBlock,
        "toBlock" : toBlock,
        "topics" : ["0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"],
        "address" : "0xdac17f958d2ee523a2206206994597c13d831ec7"
    }
    var logs = exchange.IO("api", "eth", "eth_getLogs", params)

    Log("arrLog:", arrLog.length)
    Log("logs:", logs.length)

    if (arrLog.length != logs.length) {
        Log("长度不等！")
        return 
    }
    
    for (var i = 0; i < arrLog.length; i++) {
        Log("判断blockNumber：", logs[i].blockNumber == arrLog[i].blockNumber, "，判断from：", logs[i].topics[1] == arrLog[i].topics[1], 
            "判断to：", logs[i].topics[2] == arrLog[i].topics[2])
    }
}
*/

اصلی ڈسک آپریشن:

عملدرآمد کے نتائج کے لیے، کوڈ میں تصدیقی حصہ (TODO: test) بھی لکھا جاتا ہے۔ ایک سادہ تصدیق کے بعد، ہم دیکھ سکتے ہیں کہ USDT معاہدے کی مسلسل نگرانی کی جاتی ہے۔Transferواقعات کو ریکارڈ کیا جاتا ہے اور اس ڈیٹا کا ایک بار حاصل کردہ ایونٹ کے ڈیٹا سے موازنہ کرتے ہوئے، یہ دیکھا جا سکتا ہے کہ ڈیٹا مطابقت رکھتا ہے:

ایونٹ فلٹرنگ

پچھلے سبق "معاہدے کے واقعات کی نگرانی" کی بنیاد پر، ہم مخصوص پتوں کے اندر اور باہر منتقلی کی نگرانی کے لیے مانیٹرنگ کے عمل میں فلٹرز شامل کرکے اس کو وسعت دیں گے۔ جب ایک سمارٹ کنٹریکٹ لاگ بناتا ہے (یعنی ایک ایونٹ جاری کرتا ہے)، لاگ ڈیٹاtopics4 پیغامات تک پر مشتمل ہے۔ لہذا ہم فلٹرنگ کے اصول کو ڈیزائن کرتے ہیں۔[[A1, A2, ...An], null, [C1], D]مثال کے طور پر۔

1、[A1, A2, ...An]مطابقتtopics[0]مقام کا ڈیٹا۔
2、nullمطابقتtopics[1]مقام کا ڈیٹا۔
3、[C1]مطابقتtopics[2]مقام کا ڈیٹا۔
4、Dمطابقتtopics[3]مقام کا ڈیٹا۔

اگر کیس کے ڈھانچے میں عناصر سیٹ ہیں۔nullاشارہ کرتا ہے کہ یہ فلٹر نہیں ہے، مثال کے طور پرnullمطابقتtopics[1]، کوئی بھی قدر مماثل ہے۔
اگر کیس کے ڈھانچے میں ایک عنصر ایک واحد قدر متعین کرتا ہے، تو یہ اشارہ کرتا ہے کہ پوزیشن مماثل ہونی چاہیے، مثال کے طور پر[C1]مطابقتtopics[2]یاDمطابقتtopics[3], بے مثال نوشتہ جات کو فلٹر کر دیا جاتا ہے۔
اگر مشروط ڈھانچے میں عنصر ایک صف ہے، تو اس کا مطلب ہے کہ صف میں کم از کم ایک عنصر کا مماثل ہونا ضروری ہے، مثال کے طور پر[A1, A2, ...An]مطابقتtopics[0]，[A1, A2, ...An]کوئی بھی اورtopics[0]اگر کوئی مماثلت پائی جاتی ہے تو لاگ کو فلٹر نہیں کیا جائے گا۔

ایکسچینجز پر USDT کی منتقلی کی نگرانی کریں۔

Binance سے اور منتقلی کی نگرانی کریں۔USDTلین دین:


            javascript
            
            
function toAmount(s, decimals) {
    return Number((BigDecimal(BigInt(s)) / BigDecimal(Math.pow(10, decimals))).toString())
}

function toInnerAmount(n, decimals) {
    return (BigDecimal(n) * BigDecimal(Math.pow(10, decimals))).toFixed(0)
}

function addEventListener(contractAddress, event, callBack) {
    var self = {}
    self.eventHash = "0x" + Encode("keccak256", "string", "hex", event)
    self.contractAddress = contractAddress
    self.latestBlockNumber = 0
    self.fromBlockNumber = 0
    self.firstBlockNumber = 0
    self.filters = []
    
    self.setFilter = function(filterCondition) {
        if (filterCondition.length > 4) {
            throw "filterCondition error"
        }

        self.filters.push(filterCondition)
        Log("设置过滤条件：", filterCondition)
    }

    self.getTokenBalanceOfWallet = function(walletAddress, tokenAddress, tokenDecimals) {
        var balance = exchange.IO("api", tokenAddress, "balanceOf", walletAddress)
        if (balance) {
            return toAmount(balance, tokenDecimals)
        }
        return null
    }

    self.getBlockNumber = function() {
        var maxTry = 10
        for (var i = 0; i < maxTry; i++) {
            var ret = exchange.IO("api", "eth", "eth_blockNumber")
            if (ret) {
                return toAmount(ret, 0)
            }
            Sleep(5000)
        }
        throw "getBlockNumber failed"
    }

    self.run = function() {
        var currBlockNumber = self.getBlockNumber()
        var fromBlock = "0x" + self.fromBlockNumber.toString(16)
        var toBlock = "0x" + currBlockNumber.toString(16)
        var params = {
            "fromBlock" : fromBlock, 
            "toBlock" : toBlock, 
            "address" : self.contractAddress, 
            "topics" : [self.eventHash]
        }
        
        var logs = exchange.IO("api", "eth", "eth_getLogs", params)
        if (!logs) {
            return 
        }

        for (var i = 0; i < logs.length; i++) {
            if (toAmount(logs[i].blockNumber, 0) > self.latestBlockNumber) {
                // 检查过滤条件，设置了过滤条件则执行判断
                if (self.filters.length != 0) {
                    // 初始过滤标记
                    var isFilter = true 
                    // 遍历过滤条件设置
                    for (var j = 0; j < self.filters.length; j++) {
                        // 取一个过滤设置，例如：[[A1, A2, ...An], null, [C1], D]
                        var cond = self.filters[j]

                        // 遍历这个过滤设置
                        var final = true
                        for (var topicsIndex = 0; topicsIndex < cond.length; topicsIndex++) {
                            // 拿到这个过滤设置中的某一个条件，如果是第一个条件：即要和topics[0]对比的数据
                            var condValue = cond[topicsIndex]

                            // 日志中的数据
                            if (topicsIndex > logs[i].topics.length - 1) {
                                continue 
                            }
                            var topicsEleValue = logs[i].topics[topicsIndex]
                            // 如果是Transfer事件，需要处理from和to
                            if (logs[i].topics[0] == "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef") {
                                if (topicsIndex == 1 || topicsIndex == 2) {
                                    topicsEleValue = "0x" + exchange.IO("encodePacked", "address", topicsEleValue)
                                }
                            }

                            // 如果condValue类型是数组，表示该位置的对比条件有多个，多个条件对比是逻辑或关系
                            if (Array.isArray(condValue) && condValue.length > 1) {
                                // 判断 condValue[0] == topicsEleValue || condValue[1] == topicsEleValue
                                final = final && condValue.some(element => element === topicsEleValue)
                            }else if (condValue === null) {
                                final = final && true
                            } else {
                                final = final && (condValue === topicsEleValue)
                            }
                        }
                        
                        if (final) {
                            isFilter = false 
                        }
                    }
                    
                    if (isFilter) {
                        continue
                    }
                }
                callBack(logs[i])
            }
        }

        self.latestBlockNumber = currBlockNumber
        self.fromBlockNumber = self.latestBlockNumber - 1
    }

    self.latestBlockNumber = self.getBlockNumber()
    self.fromBlockNumber = self.latestBlockNumber - 1

    return self
}

var listener = null 
function main() {
    // 初始清理日志
    LogReset(1)
    LogProfitReset()

    var event = "Transfer(address,address,uint256)"                          // 监听事件
    var contractAddress = "0xdac17f958d2ee523a2206206994597c13d831ec7"       // USDT合约地址
    var decimals = exchange.IO("api", contractAddress, "decimals")           // 获取USDT token的精度信息
    var accountBinanceAddress = "0x28C6c06298d514Db089934071355E5743bf21d60" // Binance 热钱包地址
    accountBinanceAddress = accountBinanceAddress.toLowerCase()              // 地址处理为小写
    Log(exchange.IO("api", contractAddress, "name"), " decimals:", decimals)

    // 创建监听对象
    listener = addEventListener(contractAddress, event, function(log) {
        var fromAddress = "0x" + exchange.IO("encodePacked", "address", log.topics[1])
        var toAddress = "0x" + exchange.IO("encodePacked", "address", log.topics[2])
        if (fromAddress == accountBinanceAddress) {
            Log("币安转出 - ", " Transfer:", fromAddress, "->", toAddress, ", value:", toAmount(log.data, decimals), ", blockNumber:", toAmount(log.blockNumber, 0), "#CD32CD")
        } else if (toAddress == accountBinanceAddress) {
            Log("转入币安 - ", " Transfer:", fromAddress, "->", toAddress, ", value:", toAmount(log.data, decimals), ", blockNumber:", toAmount(log.blockNumber, 0), "#FF0000")
        }        
    })

    // 设置事件过滤
    listener.setFilter([null, accountBinanceAddress, null])   // Binance -> USDT
    listener.setFilter([null, null, accountBinanceAddress])   // USDT -> Binance
    
    var preBalance = 0
    while (true) {
        listener.run()
        var balance = listener.getTokenBalanceOfWallet(accountBinanceAddress, contractAddress, decimals)
        if (balance) {
            var direction = ""
            if (preBalance != 0 && preBalance > balance) {
                direction = " ↓ " + (preBalance - balance) + "#CD32CD"
            } else if (preBalance != 0 && preBalance < balance) {
                direction = " ↑ " + (balance - preBalance) + "#FF0000"
            }
            Log("币安钱包地址：", accountBinanceAddress, " 余额：", balance, direction)
            LogProfit(balance, "&")   // 只画图，不打印日志
            preBalance = balance
        }
        LogStatus(_D(), "币安钱包地址：", accountBinanceAddress, ", 余额：", balance)
        Sleep(5000 * 3)
    }
}

مندرجہ بالا کوڈ اصلی ڈسک میں چلایا جاتا ہے:

اس سبق میں، ہم نے ایونٹ فلٹرز کو ڈیزائن کرنے کا طریقہ متعارف کرایا۔ اور اسے Binance Exchange کے گرم بٹوے کی نگرانی کے لیے استعمال کیا۔USDTتجارت آپ اس نمونہ پروگرام میں ترمیم اور توسیع کر سکتے ہیں تاکہ آپ کی دلچسپی کے کسی بھی پروگرام کو سنیں۔smart moneyکون سے نئے لین دین کیے گئے؟NFTبڑے لوگ کن نئے پروجیکٹس پر کام کر رہے ہیں، وغیرہ۔

یونٹ کی تبدیلی

Ethereum سے متعلق بہت سے حسابات میں، قدریں حد سے زیادہ ہیں۔JavaScriptزبان کے لیے زیادہ سے زیادہ محفوظ عدد۔ لہذا، انوینٹر کوانٹیٹیو ٹریڈنگ پلیٹ فارم پر بڑی تعداد میں کارروائی کرنے کے لیے کچھ طریقوں کی ضرورت ہے، ہم نے ان طریقوں کو پچھلے کورسز میں استعمال کیا ہے لیکن ان کی تفصیل سے وضاحت نہیں کی ہے۔ اس باب میں اس پہلو پر تفصیل سے بحث کی جائے گی۔

پرنٹJavaScriptزبان میں بیان کردہ سب سے بڑا محفوظ عدد:


            javascript
            
            
function main() {
    Log("Number.MAX_SAFE_INTEGER:", Number.MAX_SAFE_INTEGER)
}

آپریشن کے نتائج:

Number.MAX_SAFE_INTEGER: 9007199254740991

BigInt

Ethereum میں بیان کردہ سب سے چھوٹی اکائی ہے۔1weiتعریف1Gweiبرابر1000000000 wei。1Gweiدرحقیقت، Ethereum سے متعلق حسابات میں یہ بہت بڑی تعداد نہیں ہے کچھ ڈیٹا اس سے بہت بڑا ہے۔ پھر بہت بڑی قدروں کے ساتھ یہ ڈیٹا آسانی سے تجاوز کر سکتا ہے۔Number.MAX_SAFE_INTEGER: 9007199254740991。

موجد مقداری تجارتی پلیٹ فارم میں، ہم پلیٹ فارم کا استعمال کرتے ہیں۔BigIntآبجیکٹ کا استعمال ان بہت بڑے انٹیجر ڈیٹا کی نمائندگی کے لیے کیا جاتا ہے۔ کنسٹرکٹرز کا استعمالBigInt()تعمیر کرناBigIntاعتراض عددی اقدار یا ہیکساڈیسیمل عددی تاروں کو بطور پیرامیٹر استعمال کرتے ہوئے بنایا جا سکتا ہےBigIntاعتراض استعمال کریںBigIntاعتراضtoString()یہ طریقہ سٹرنگ کے طور پر آبجیکٹ کے ذریعہ پیش کردہ ڈیٹا کو آؤٹ پٹ کرتا ہے۔

BigIntآبجیکٹ کے ذریعہ تعاون یافتہ آپریشنز:

اضافی آپریشن:+
گھٹاؤ:-
ضرب:*
ڈویژن آپریشن:/
ماڈیولو آپریشن:%
پاور آپریشن:**

درج ذیل کوڈ مثال سے رجوع کریں:


            javascript
            
            
function main() {
    // 1Gwei的十进制表示
    var oneGwei = 1000000000

    // 1Gwei的十进制转换为十六进制表示
    var oneGweiForHex = "0x" + oneGwei.toString(16)

    Log("oneGwei : ", oneGwei)
    Log("oneGweiForHex : ", oneGweiForHex)

    // 构造BigInt对象
    Log("1Gwei / 1Gwei : ", (BigInt(oneGwei) / BigInt(oneGweiForHex)).toString(10))
    Log("1Gwei * 1Gwei : ", (BigInt(oneGwei) * BigInt(oneGweiForHex)).toString(10))
    Log("1Gwei - 1Gwei : ", (BigInt(oneGwei) - BigInt(oneGweiForHex)).toString(10))
    Log("1Gwei + 1Gwei : ", (BigInt(oneGwei) + BigInt(oneGweiForHex)).toString(10))
    Log("(1Gwei + 1) % 1Gwei : ", (BigInt(oneGwei + 1) % BigInt(oneGweiForHex)).toString(10))
    Log("1Gwei ** 2 : ", (BigInt(oneGwei) ** BigInt(2)).toString(10))
    Log("100 的平方根 : ", (BigInt(100) ** BigFloat(0.5)).toString(10))

    Log("Number.MAX_SAFE_INTEGER : ", BigInt(Number.MAX_SAFE_INTEGER).toString(10))
    Log("Number.MAX_SAFE_INTEGER * 2 : ", (BigInt(Number.MAX_SAFE_INTEGER) * BigInt("2")).toString(10))
}

ڈیبگ ٹول ٹیسٹ:


            run
            
            
2023-06-08 11:39:50		信息	Number.MAX_SAFE_INTEGER * 2 : 18014398509481982
2023-06-08 11:39:50		信息	Number.MAX_SAFE_INTEGER : 9007199254740991
2023-06-08 11:39:50		信息	100 的平方根 : 10
2023-06-08 11:39:50		信息	1Gwei ** 2 : 1000000000000000000
2023-06-08 11:39:50		信息	(1Gwei + 1) % 1Gwei : 1
2023-06-08 11:39:50		信息	1Gwei + 1Gwei : 2000000000
2023-06-08 11:39:50		信息	1Gwei - 1Gwei : 0
2023-06-08 11:39:50		信息	1Gwei * 1Gwei : 1000000000000000000
2023-06-08 11:39:50		信息	1Gwei / 1Gwei : 1
2023-06-08 11:39:50		信息	oneGweiForHex : 0x3b9aca00
2023-06-08 11:39:50		信息	oneGwei : 1000000000

BigFloat

BigFloatاشیاء اورBigIntآبجیکٹ کو اسی طرح استعمال کیا جاتا ہے، اور بڑی قدروں کے ساتھ فلوٹنگ پوائنٹ نمبرز کی نمائندگی کرنے کے لیے استعمال کیا جاتا ہے یہ اضافے، گھٹاؤ، ضرب اور تقسیم کے عمل کو بھی سپورٹ کرتا ہے۔
BigFloatآبجیکٹ سپورٹtoFixed()طریقہ

درج ذیل کوڈ مثال سے رجوع کریں:


            javascript
            
            
function main() {
    var pi = 3.14
    var oneGwei = "1000000000"
    var oneGweiForHex = "0x3b9aca00"

    Log("pi + oneGwei : ", (BigFloat(pi) + BigFloat(oneGwei)).toFixed(2))
    Log("pi - oneGweiForHex : ", (BigFloat(pi) - BigFloat(oneGweiForHex)).toFixed(2))
    Log("pi * 2.0 : ", (BigFloat(pi) * BigFloat(2.0)).toFixed(2))
    Log("pi / 2.0 : ", (BigFloat(pi) / BigFloat(2.0)).toFixed(2))
}

ڈیبگ ٹول ٹیسٹ:


            javascript
            
            
2023-06-08 13:56:44		信息	pi / 2.0 : 1.57
2023-06-08 13:56:44		信息	pi * 2.0 : 6.28
2023-06-08 13:56:44		信息	pi - oneGweiForHex : -999999996.86
2023-06-08 13:56:44		信息	pi + oneGwei : 1000000003.14

BigDecimal

BigDecimalآبجیکٹ انٹیجر اور فلوٹنگ پوائنٹ ویلیوز کے ساتھ مطابقت رکھتا ہے اور کے استعمال کی حمایت کرتا ہے۔BigIntاشیاء،BigFloatآبجیکٹ کی ابتدا بھی اضافے، گھٹاؤ، ضرب اور تقسیم کی کارروائیوں کی حمایت کرتی ہے۔

درج ذیل کوڈ مثال سے رجوع کریں:


            javascript
            
            
function main() {
    var pi = 3.1415
    var oneGwei = 1000000000
    var oneGweiForHex = "0x3b9aca00"

    Log("pi : ", BigDecimal(pi).toFixed(2))
    Log("oneGwei : ", BigDecimal(oneGwei).toString())
    Log("oneGweiForHex : ", BigDecimal(BigInt(oneGweiForHex)).toString())

    Log("BigInt(oneGwei) : ", BigDecimal(BigInt(oneGwei)).toString())    
    Log("BigFloat(pi) : ", BigDecimal(BigFloat(pi)).toFixed(4))

    Log("oneGwei + pi : ", (BigDecimal(oneGwei) + BigDecimal(pi)).toString())
    Log("oneGwei - pi : ", (BigDecimal(oneGwei) - BigDecimal(pi)).toString())
    Log("2.0 * pi : ", (BigDecimal(2.0) * BigDecimal(pi)).toString())
    Log("pi / pi : ", (BigDecimal(pi) / BigDecimal(pi)).toString())
}

ڈیبگر میں چلائیں:


            run
            
            
2023-06-08 14:52:53		信息	pi / pi : 1
2023-06-08 14:52:53		信息	2.0 * pi : 6.283
2023-06-08 14:52:53		信息	oneGwei - pi : 999999996.8585
2023-06-08 14:52:53		信息	oneGwei + pi : 1000000003.1415
2023-06-08 14:52:53		信息	BigFloat(pi) : 3.1415
2023-06-08 14:52:53		信息	BigInt(oneGwei) : 1e+9
2023-06-08 14:52:53		信息	oneGweiForHex : 1e+9
2023-06-08 14:52:53		信息	oneGwei : 1e+9
2023-06-08 14:52:53		信息	pi : 3.14

یونٹ کی تبدیلی

درج ذیل دو افعال:toAmount()、toInnerAmount()ہم نے ان دونوں فنکشنز کو پچھلے کورسز میں کئی بار استعمال کیا ہے وہ بنیادی طور پر ڈیٹا کی درستگی کے لیے استعمال ہوتے ہیں۔


            javascript
            
            
function toAmount(s, decimals) {
    return Number((BigDecimal(BigInt(s)) / BigDecimal(Math.pow(10, decimals))).toString())
}

function toInnerAmount(n, decimals) {
    return (BigDecimal(n) * BigDecimal(Math.pow(10, decimals))).toFixed(0)
}

toAmount()فنکشن ایک متغیر کو تبدیل کرتا ہے۔s، درستگی کے پیرامیٹر کے مطابقdecimalsایک (کم کرنے والی) تبدیلی انجام دیں۔ ویب 3 کی اصل ترقی میں، اکثر زنجیر پر کچھ ہیکساڈیسیمل ڈیٹا پر کارروائی کرنا ضروری ہوتا ہے۔
ہم اکثر اپنے پچھلے کورسز، جیسے کہ سمارٹ کنٹریکٹس میں اس کا سامنا کرتے ہیں۔Transfer(address,address,uint256)تقریب میںdataفیلڈ ڈیٹا:


            desc
            
            
{
	"data": "0x00000000000000000000000000000000000000000000000001c1a55000000000",
	"topics": ["0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef", "0x0000000000000000000000006b75d8af000000e20b7a7ddf000ba900b4009a80", "0x000000000000000000000000bcb095c1f9c3dc02e834976706c87dee5d0f1fb6"],
	"transactionHash": "0x27f9bf5abe3148169b4b85a83e1de32bd50eb81ecc52e5af006157d93353e4c4",
	"transactionIndex": "0x0",
	"removed": false,
	"address": "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
	"blockHash": "0x847be24a7b159c292bda030a011dfec89487b70e71eed486969b032d6ef04bad",
	"blockNumber": "0x109b1cc",
	"logIndex": "0x0"
}

پروسیسنگ ڈیٹا"data": "0x00000000000000000000000000000000000000000000000001c1a55000000000"، اس وقت استعمال کریںtoAmount()فنکشن یہ پروسیسنگ ڈیزائن اچھی طرح سے کر سکتے ہیںdataفیلڈ ڈیٹا کو پڑھنے کے قابل عددی اقدار میں تبدیل کریں۔


            javascript
            
            
function toAmount(s, decimals) {
    return Number((BigDecimal(BigInt(s)) / BigDecimal(Math.pow(10, decimals))).toString())
}

function main() {
    var data = "0x00000000000000000000000000000000000000000000000001c1a55000000000"
    Log(toAmount(data, 18))  // 打印出 0.12656402755905127
}

1 ETH ٹوکن ہم جانتے ہیں۔1e18 weiاگر ہم ایک حاصل کرتے ہیںweiیونٹس میں ڈیٹا126564027559051260اسے ETH ٹوکن کی تعداد میں کیسے تبدیل کیا جائے؟
استعمال کریںtoAmount(, 18)افعال کو آسانی سے تبدیل کیا جا سکتا ہے۔toInnerAmount()فنکشن ہےtoAmount()ان دو فنکشنز کا استعمال کرتے ہوئے فنکشن کا ریورس آپریشن (صحت سے متعلق، امپلیفیکیشن کے مطابق)، ڈیٹا کو تبدیل کرنا بہت آسان ہے۔

واضح رہے کہ JavaScript زبان میں انٹیجر ویلیوز کی محفوظ رینج ہے۔Number.MAX_SAFE_INTEGER، مندرجہ ذیل مثال ڈیٹا کی تبدیلی میں ایک زیادہ پوشیدہ مسئلہ کی وضاحت کرتی ہے:


            javascript
            
            
function toAmount(s, decimals) {
    return Number((BigDecimal(BigInt(s)) / BigDecimal(Math.pow(10, decimals))).toString())
}

function toInnerAmount(n, decimals) {
    return (BigDecimal(n) * BigDecimal(Math.pow(10, decimals))).toFixed(0)
}

function main() {
    var amount = 0.01
    var innerAmount = Number(toInnerAmount(amount, 18))       

    Log("Number.MAX_SAFE_INTEGER:", Number.MAX_SAFE_INTEGER)  // 9007199254740991
    Log("innerAmount:", innerAmount)                          // 10000000000000000

    Log("typeof(innerAmount):", typeof(innerAmount), ", innerAmount:", innerAmount)
    
    // 十进制数值 10000000000000000 -> 十六进制数值 0x2386f26fc10000
    Log("转换", innerAmount, "为十六进制：", innerAmount.toString(16))
    Log("转换", BigInt(10000000000000000).toString(10), "为十六进制：", BigInt(10000000000000000).toString(16))
    
    Log("0x" + BigInt(10000000000000000).toString(16), "转换为10进制：", toAmount("0x" + BigInt(10000000000000000).toString(16), 0))
}

آپ اسے ڈیبگر میں چلا سکتے ہیں:


            run
            
            
2023-06-15 16:21:40		信息	0x2386f26fc10000 转换为10进制： 10000000000000000
2023-06-15 16:21:40		信息	转换 10000000000000000 为十六进制： 2386f26fc10000
2023-06-15 16:21:40		信息	转换 10000000000000000 为十六进制： 10000000000000000
2023-06-15 16:21:40		信息	typeof(innerAmount): number , innerAmount: 10000000000000000
2023-06-15 16:21:40		信息	innerAmount: 10000000000000000
2023-06-15 16:21:40		信息	Number.MAX_SAFE_INTEGER: 9007199254740991

مشاہدے کے ذریعے ہم نے پایا کہ:


            javascript
            
            
Log("转换", innerAmount, "为十六进制：", innerAmount.toString(16))

کوڈ کی اس لائن سے متعلقہ لاگ آؤٹ پٹ یہ ہے:转换 10000000000000000 为十六进制： 10000000000000000، لیکن اسے صحیح طریقے سے تبدیل نہیں کیا گیا تھا۔ وجہ قدرتی طور پر ہے کیونکہ 10000000000000000 سے زیادہ ہےNumber.MAX_SAFE_INTEGER。

تاہم، جب اعشاریہ قدر محفوظ حد کے اندر ہے، یعنی اس سے کمNumber.MAX_SAFE_INTEGERگھنٹہtoString(16)فنکشن کی تبدیلی دوبارہ معمول ہے، مثال کے طور پر:


            javascript
            
            
function main() {
    var value = 1000
    Log("把value转换为十六进制：", "0x" + value.toString(16))   // 0x3e8
    Log("把0x3e8转换为十进制：", Number("0x3e8"))               // 1000
}

بلاکچین کے میدان میں بھی0.01ETH میں تبدیل ہو گیا۔weiیونٹ کی قیمت10000000000000000اس سے بھی تجاوز کر جائے گا۔Number.MAX_SAFE_INTEGERلہذا اس صورت حال کے لیے ایک محفوظ تبدیلی یہ ہے:BigInt(10000000000000000).toString(16)。

کال کی نقل کریں۔

Ethereum پر لین دین کریں اور سمارٹ معاہدوں کو کال کریں۔Writeیہ طریقہ ایک خاص مقدار میں گیس استعمال کرتا ہے اور بعض اوقات ناکامی کا خطرہ ہوتا ہے۔ یہ جاننا ضروری ہے کہ کون سے لین دین انہیں بھیجنے یا کال کرنے سے پہلے ناکام ہو سکتے ہیں۔ Ethereum پر جانچ کے لیے نقلی کال کے طریقے موجود ہیں۔

eth_call

Ethereum کا RPC طریقہeth_call：ایک لین دین کی تقلید کر سکتے ہیں اور ممکنہ لین دین کے نتائج واپس کر سکتے ہیں، لیکن حقیقت میں بلاکچین پر لین دین کو انجام نہیں دے گا۔

eth_callطریقہ کار کے دو پیرامیٹرز ہیں، پہلا پیرامیٹر لغت کا ڈھانچہ ہے،transactionObject：


            javascript
            
            
// transactionObject
{
    "from" : ...,     // The address from which the transaction is sent
    "to" : ...,       // The address to which the transaction is addressed
    "gas" : ...,      // The integer of gas provided for the transaction execution
    "gasPrice" : ..., // The integer of gasPrice used for each paid gas encoded as hexadecimal
    "value" : ...,    // The integer of value sent with this transaction encoded as hexadecimal
    "data" : ...,     // The hash of the method signature and encoded parameters. For more information, see the Contract ABI description in the Solidity documentation
}

دوسرا پیرامیٹر ہے۔blockNumber: آپ ٹیگز پاس کر سکتے ہیں۔latest/pending/earliestانتظار کریں:


            javascript
            
            
/* blockNumber
The block number in hexadecimal format or the string latest, earliest, pending, safe or 
finalized (safe and finalized tags are only supported on Ethereum, Gnosis, Arbitrum, 
Arbitrum Nova and Avalanche C-chain), see the default block parameter description in 
the official Ethereum documentation
*/

اگلا، ہم ٹوکن استعمال کرتے ہیں۔DAIسمارٹ معاہدہ کا طریقہapprove、transferکال ایک نقلی کال ہے مثال کے طور پر درج ذیل ٹیسٹ ماحول ایتھریم مین نیٹ ورک ہے۔

کالنگ کی منظوری کی تقلید کریں۔

ERC20 معاہدوں کے لیےapproveہم اس طریقہ کار سے پہلے ہی واقف ہیں اور ہم نے پچھلے کورسز میں اس پر عمل کیا ہے۔ چونکہ ERC20 معاہدہ پہلے سے ہی FMZ پلیٹ فارم ABI میں بنایا گیا ہے، اس لیے سمولیٹ ہونے کے لیے سمارٹ کنٹریکٹ کے ABI کو رجسٹر کرنے کی ضرورت نہیں ہے۔


            javascript
            
            
function main() {
    var contractAddressUniswapV3SwapRouterV2 = "0x68b3465833fb72A70ecDF485E0e4C7bD8665Fc45"
    var contractAddress_DAI = "0x6b175474e89094c44da98b954eedeac495271d0f"
    var wallet = exchange.IO("address")

    // encode approve
    var data = exchange.IO("encode", contractAddress_DAI, "approve(address,uint256)", 
        contractAddressUniswapV3SwapRouterV2, "0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff")
    Log("ERC20 token DAI approve encode, data:", data)
    
    var transactionObject = {
        "from" : wallet,
        "to" : contractAddress_DAI,
        // "gasPrice" : "0x" + parseInt("21270894680").toString(16),
        // "gas" : "0x" + parseInt("21000").toString(16),
        "data" : "0x" + data,
    }
    var blockNumber = "latest"
    
    var ret = exchange.IO("api", "eth", "eth_call", transactionObject, blockNumber)
    Log("ret:", ret)
}

مثال میں کوڈ پہلے بدلتا ہے۔approve(address,uint256)طریقوں اور پیرامیٹرز کو انکوڈ کیا گیا ہے۔approveطریقہ پیرامیٹر کی قدریں۔0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffاجازتوں کی زیادہ سے زیادہ تعداد کی نشاندہی کرتا ہے۔ سمارٹ کنٹریکٹ، ایڈریس کی اجازت دیں۔0x68b3465833fb72A70ecDF485E0e4C7bD8665Fc45ابھیUniswap V3روٹنگ کا معاہدہ۔ آخر میں Ethereum RPC طریقہ کو کال کریں۔eth_callایک تخروپن انجام دیں. آپ دیکھ سکتے ہیں۔transactionObjectپیرامیٹرزgasPrice、gasفیلڈز کو چھوڑا جا سکتا ہے۔

ڈیبگنگ ٹول منظور شدہ طریقہ کو کال کرنے کی کامیاب اجازت کو چلاتا اور نقل کرتا ہے (لیکن حقیقت میں اجازت نہیں دیتا):


            run
            
            
2023-06-09 11:58:39		信息	ret: 0x0000000000000000000000000000000000000000000000000000000000000001
2023-06-09 11:58:39		信息	ERC20 token DAI approve encode, data: 095ea7b300000000000000000000000068b3465833fb72a70ecdf485e0e4c7bd8665fc45ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff

جب ہم ایڈجسٹ کرتے ہیں تو ہم کچھ ناکامی کے منظرناموں کو بھی نقل کر سکتے ہیں۔gasPriceاورgasپیرامیٹرز ترتیب دیتے وقت، اگر پرس میں موجود ETH گیس فیس ادا کرنے کے لیے کافی نہیں ہے، تو ایک غلطی کی اطلاع دی جائے گی:

insufficient funds

جب گیس کی فیس بہت کم رکھی جائے گی تو ایک غلطی کی اطلاع دی جائے گی:

intrinsic gas too low: have 21000, want 21944 (supplied gas 21000)

کالنگ ٹرانسفر کی تقلید کریں۔

ERC20 کے لیےtransferہم اس طریقہ سے بھی واقف ہیں یہ طریقہ ERC20 ٹوکن کو ایک مخصوص پرس ایڈریس پر منتقل کرنے کی کوشش کریں گے۔


            javascript
            
            
function toInnerAmount(n, decimals) {
    return (BigDecimal(n) * BigDecimal(Math.pow(10, decimals))).toFixed(0)
}

function main() {
    var walletVitalik = "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
    var contractAddress_DAI = "0x6b175474e89094c44da98b954eedeac495271d0f"
    var wallet = exchange.IO("address")

    // 转账给V神
    var decimals_DAI = exchange.IO("api", contractAddress_DAI, "decimals")
    var transferAmount = toInnerAmount(1000, decimals_DAI)
    Log("转账金额：", 1000, "DAI, 使用 toInnerAmount 转换为：", transferAmount)

    // encode transfer
    var data = exchange.IO("encode", contractAddress_DAI, "transfer(address,uint256)",
        walletVitalik, transferAmount)

    var transactionObject = {
        "from" : wallet,
        "to" : contractAddress_DAI,
        "data" : "0x" + data,
    }
    var blockNumber = "latest"
    
    var ret = exchange.IO("api", "eth", "eth_call", transactionObject, blockNumber)
    return ret 
}

چونکہ میرے ٹیسٹ والیٹ میں DAI ٹوکن نہیں ہیں، اس لیے اسے ڈیبگنگ ٹول میں چلانے کا نتیجہ توقع کے مطابق ہے، ایک غلطی کی اطلاع دی گئی ہے:

execution reverted: Dai/insufficient-balance

Vitalik کے بٹوے کا پتہ چیک کریں:0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045یہ دیکھا جا سکتا ہے کہ اس پرس میں DAI ٹوکن ہیں۔ پھر آئیے نقلی کال کی منتقلی کی سمت کو تبدیل کرتے ہیں اور Vitalik کی نقل کرتے ہیں جو 1,000 DAI ہمیں منتقل کرتا ہے۔

کوڈ میں ترمیم کریں اور تبصرے کریں جہاں آپ نے اس میں ترمیم کی ہے:


            javascript
            
            
function toInnerAmount(n, decimals) {
    return (BigDecimal(n) * BigDecimal(Math.pow(10, decimals))).toFixed(0)
}

function main() {
    var walletVitalik = "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
    var contractAddress_DAI = "0x6b175474e89094c44da98b954eedeac495271d0f"
    var wallet = exchange.IO("address")

    var decimals_DAI = exchange.IO("api", contractAddress_DAI, "decimals")
    var transferAmount = toInnerAmount(1000, decimals_DAI)
    Log("转账金额：", 1000, "DAI, 使用 toInnerAmount 转换为：", transferAmount)

    // encode transfer
    var data = exchange.IO("encode", contractAddress_DAI, "transfer(address,uint256)",
        wallet, transferAmount)     // 使用wallet变量作为参数，转账接收方地址改为我自己

    var transactionObject = {
        "from" : walletVitalik,     // 使用walletVitalik变量作为from字段的值，模拟这个调用是由V神钱包地址发出
        "to" : contractAddress_DAI,
        "data" : "0x" + data,
    }
    var blockNumber = "latest"
    
    var ret = exchange.IO("api", "eth", "eth_call", transactionObject, blockNumber)
    Log(ret)
}

ڈیبگ ٹول ٹیسٹ:


            javascript
            
            
2023-06-09 13:34:31		信息	0x0000000000000000000000000000000000000000000000000000000000000001
2023-06-09 13:34:31		信息	转账金额： 1000 DAI, 使用 toInnerAmount 转换为： 1000000000000000000000

موجد کوانٹیٹیو ٹریڈنگ پلیٹ فارم کا استعمال کرتے ہوئے، آپ آسانی سے لین دین کے نتائج کی نقالی کر سکتے ہیں اور لین دین بھیجنے سے ہونے والے غیر ضروری گیس فیس کے نقصانات سے بچ سکتے ہیں جو ناکام ہو سکتے ہیں۔ ہم اس باب میں مثالی کوڈ کا استعمال کرتے ہیں تاکہ Vitalik کے بٹوے میں رقم کی منتقلی اور Vitalik کے والیٹ سے ہمیں رقم کی منتقلی کی کال کی تقلید ہو۔ بالکل، یہeth_callطریقوں کے زیادہ استعمال ہوتے ہیں۔ اپنی تخیل کا استعمال کریں اور آپ کریں گے۔eth_callطریقہ کہاں استعمال ہوتا ہے؟

ERC721 معاہدوں کی شناخت کریں۔

ہم جانتے ہیں کہ ETH اور BTC جیسے ٹوکن تمام یکساں ٹوکن ہیں جو آپ کے ہاتھ میں موجود ٹوکن میرے ہاتھ میں موجود ٹوکن سے مختلف نہیں ہیں۔ تاہم، دنیا میں بہت سی چیزیں ایسی ہیں جو مختلف نوعیت کی ہیں، جیسے کہ رئیل اسٹیٹ، نوادرات، ورچوئل آرٹ ورکس وغیرہ، جن کو یکساں طور پر یکساں طور پر ظاہر نہیں کیا جا سکتا۔ لہذا، ERC721 معیار کو غیر یکساں اشیاء کو ختم کرنے کے لیے بنایا گیا تھا، اور NFT اور متعلقہ تصورات وجود میں آئے تھے۔
تو Ethereum پر تعینات بہت سے سمارٹ معاہدوں میں سے، ہم کیسے شناخت کریں گے کہ کون سے سمارٹ کنٹریکٹس ERC721 معیاری سمارٹ کنٹریکٹس ہیں؟

ERC721 کی شناخت کرنے کے لیے، آپ کو پہلے ERC165 معیار کو سمجھنا چاہیے۔

ERC165

ERC165 معیار کے ذریعے، ایک سمارٹ کنٹریکٹ ان انٹرفیس کا اعلان کر سکتا ہے جن کی جانچ کے لیے وہ دوسرے معاہدوں کے لیے تعاون کرتا ہے۔ ERC165 انٹرفیس معاہدہ میں صرف ایک فنکشن ہے:supportsInterface(bytes4 interfaceId)پیرامیٹرinterfaceIdانٹرفیس ID جس سے استفسار کیا جانا ہے۔ اگر معاہدہ انٹرفیس آئی ڈی کو لاگو کرتا ہے، تو یہ ایک بولین حقیقی قدر لوٹاتا ہے، بصورت دیگر یہ غلط قدر لوٹاتا ہے۔

اگلا ہم اس کے بارے میں بات کرنے جا رہے ہیں۔interfaceIdخاص طور پر اس کا حساب اور انکوڈ کرنے کا طریقہ۔

ERC165 سٹینڈرڈایک مثال دی جاتی ہے:


            solidity
            
            
pragma solidity ^0.4.20;

interface Solidity101 {
    function hello() external pure;
    function world(int) external pure;
}

contract Selector {
    function calculateSelector() public pure returns (bytes4) {
        Solidity101 i;
        return i.hello.selector ^ i.world.selector;
    }
}

صرف ایک فنکشن کے ساتھ ERC165 انٹرفیس کنٹریکٹ کے لیے انٹرفیس کے فنکشن کے دستخط پر ایک XOR آپریشن کریں (فنکشن کا نام اور پیرامیٹر کی قسم کی فہرست)۔


            solidity
            
            
pragma solidity ^0.4.20;

interface ERC165 {
    /// @notice Query if a contract implements an interface
    /// @param interfaceID The interface identifier, as specified in ERC-165
    /// @dev Interface identification is specified in ERC-165. This function
    ///  uses less than 30,000 gas.
    /// @return `true` if the contract implements `interfaceID` and
    ///  `interfaceID` is not 0xffffffff, `false` otherwise
    function supportsInterface(bytes4 interfaceID) external view returns (bool);
}

The interface identifier for this interface is 0x01ffc9a7. You can calculate this by running bytes4(keccak256('supportsInterface(bytes4)')); or using the Selector contract above.

فنکشن کے دستخط کا براہ راست حساب لگائیں اور حاصل کرنے کے لیے پہلے 4 بائٹس لیں۔interfaceId。


            javascript
            
            
function main() {
    var ret = Encode("keccak256", "string", "hex", "supportsInterface(bytes4)")
    Log("supportsInterface(bytes4) interfaceId:", "0x" + ret.slice(0, 8))
}

ٹیسٹ ڈیبگر میں چلائے جا سکتے ہیں:


            run
            
            
2023-06-13 14:53:35		信息	supportsInterface(bytes4) interfaceId: 0x01ffc9a7

آپ حسابی نتائج دیکھ سکتے ہیں اورERC165 سٹینڈرڈدستاویز میں تفصیل مطابقت رکھتی ہے۔

ERC721

اگلا، آئیے ERC721 معاہدے کے معیار کی انٹرفیس تعریف کو دیکھیں:


            solidity
            
            
interface ERC721 /* is ERC165 */ {
    event Transfer(address indexed _from, address indexed _to, uint256 indexed _tokenId);

    event Approval(address indexed _owner, address indexed _approved, uint256 indexed _tokenId);

    event ApprovalForAll(address indexed _owner, address indexed _operator, bool _approved);

    function balanceOf(address _owner) external view returns (uint256);

    function ownerOf(uint256 _tokenId) external view returns (address);

    function safeTransferFrom(address _from, address _to, uint256 _tokenId, bytes data) external payable;

    function safeTransferFrom(address _from, address _to, uint256 _tokenId) external payable;

    function transferFrom(address _from, address _to, uint256 _tokenId) external payable;

    function approve(address _approved, uint256 _tokenId) external payable;

    function setApprovalForAll(address _operator, bool _approved) external;

    function getApproved(uint256 _tokenId) external view returns (address);

    function isApprovedForAll(address _owner, address _operator) external view returns (bool);
}

اگر ہم اس بات کا تعین کرنا چاہتے ہیں کہ آیا سمارٹ کنٹریکٹ ERC721 معاہدہ ہے، تو ہمیں پہلے ERC721 کا معاہدہ جاننا چاہیے۔interfaceId، اس سے پہلے کہ آپ استعمال کرنے کی کوشش کر سکیںsupportsInterface(bytes4 interfaceId)طریقہ کا فیصلہ پچھلے کورس میں، ہم ERC165 معیار کے کچھ تصورات اور حساب سے واقف ہو چکے ہیں۔interfaceIdہم الگورتھم کا حساب لگانے کے لیے براہ راست کوڈ لکھ سکتے ہیں:


            javascript
            
            
function calcSelector(arrSelector) {
    var ret = null
    if (Array.isArray(arrSelector)) {
        if (arrSelector.length == 1) {
            ret = Encode("keccak256", "string", "hex", arrSelector[0])
        } else if (arrSelector.length == 0) {
            throw "错误：数组中元素个数为0"
        } else {
            var viewEncodeData = null
            for (var i = 0; i < arrSelector.length; i++) {
                if (i == 0) {
                    ret = new Uint8Array(Encode("keccak256", "string", "raw", arrSelector[i]))
                } else {
                    viewData = new Uint8Array(Encode("keccak256", "string", "raw", arrSelector[i]))
                    
                    if (viewData.length != ret.length) {
                        throw "错误：TypeArray view长度不同"
                    }

                    for (var index = 0; index < ret.length; index++) {
                        ret[index] ^= viewData[index]
                    }
                }
            }
            ret = Encode("raw", "raw", "hex", ret.buffer)
        }
    } else {
        throw "错误：参数需要数组类型。"
    }

    return "0x" + ret.slice(0, 8)
}

function main() {
    // supportsInterface(bytes4): 0x01ffc9a7
    // var ret = calcSelector(["supportsInterface(bytes4)"])

    // ERC721Metadata: 0x5b5e139f
    /* 
    var arrSelector = [
        "name()",
        "symbol()",
        "tokenURI(uint256)"
    ]
    var ret = calcSelector(arrSelector)
    */

    // ERC721: 0x80ac58cd
    // /*
    var arrSelector = [
        "balanceOf(address)",
        "ownerOf(uint256)",
        "safeTransferFrom(address,address,uint256,bytes)",
        "safeTransferFrom(address,address,uint256)",
        "transferFrom(address,address,uint256)",
        "approve(address,uint256)",
        "setApprovalForAll(address,bool)",
        "getApproved(uint256)",
        "isApprovedForAll(address,address)",
    ]
    var ret = calcSelector(arrSelector)
    // */

    Log(ret)
}

کوڈ استعمال کرتا ہے۔Encode()فنکشن فنکشن دستخطی کیلکولیشن کرتا ہے (keccak256الگورتھم)، اوپر دیے گئے کوڈ کی مثال میں حساب کے لیے، وضاحت کریں۔Encode()فنکشن کے آؤٹ پٹ پیرامیٹرز ہیں۔"raw"، فنکشن واپس آتا ہے۔JavaScriptلسانیArrayBufferقسم
اگر آپ دو کرنا چاہتے ہیں۔ArrayBufferاعتراض^(XOR) آپریشن، کی بنیاد پرArrayBufferآبجیکٹ کی تخلیقTypedArrayاس کے بعد ہر ایک پر XOR آپریشنز کرتے ہوئے، ڈیٹا پر نظریہ دہرایا جاتا ہے۔

ڈیبگر میں چلائیں:


            run
            
            
2023-06-13 15:04:09		信息	0x80ac58cd

آپ حسابی نتائج دیکھ سکتے ہیں اورeip-721جیسا کہ میں بیان کیا گیا ہے۔


            solidity
            
            
pragma solidity ^0.4.20;

/// @title ERC-721 Non-Fungible Token Standard
/// @dev See https://eips.ethereum.org/EIPS/eip-721
///  Note: the ERC-165 identifier for this interface is 0x80ac58cd.
interface ERC721 /* is ERC165 */ {
    /// @dev This emits when ownership of any NFT changes by any mechanism.
    ///  This event emits when NFTs are created (`from` == 0) and destroyed
    ///  (`to` == 0). Exception: during contract creation, any number of NFTs
    ///  may be created and assigned without emitting Transfer. At the time of
    ///  any transfer, the approved address for that NFT (if any) is reset to none.
    event Transfer(address indexed _from, address indexed _to, uint256 indexed _tokenId);
...

ERC721 انٹرفیس ID کے ساتھ، ہم یہ تعین کر سکتے ہیں کہ آیا معاہدہ ERC721 معیاری معاہدہ ہے۔ ہم استعمال کرتے ہیں۔BAYCٹیسٹ کرنے کے لیے، یہ ایک معاہدہ ہے جو ERC721 کی تعمیل کرتا ہے، پہلے ہمیں ABI کو رجسٹر کرنے کی ضرورت ہے، اس لیے ہم صرف ان تین طریقوں کو رجسٹر کر سکتے ہیں۔

supportsInterface(interfaceId)
symbol()
name()

مخصوص کوڈ مندرجہ ذیل ہے:


            javascript
            
            
function main() {
    // ERC721的合约地址，这里用的BAYC
    var testContractAddress = "0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d"

    var testABI = `[{
        "inputs": [{
            "internalType": "bytes4",
            "name": "interfaceId",
            "type": "bytes4"
        }],
        "name": "supportsInterface",
        "outputs": [{
            "internalType": "bool",
            "name": "",
            "type": "bool"
        }],
        "stateMutability": "view",
        "type": "function"
    }, {
        "inputs": [],
        "name": "symbol",
        "outputs": [{
            "internalType": "string",
            "name": "",
            "type": "string"
        }],
        "stateMutability": "view",
        "type": "function"
    }, {
        "inputs": [],
        "name": "name",
        "outputs": [{
            "internalType": "string",
            "name": "",
            "type": "string"
        }],
        "stateMutability": "view",
        "type": "function"
    }]`

    // ERC721接口Id，在之前的课程中计算得出
    var interfaceId = "0x80ac58cd"

    // 注册ABI
    exchange.IO("abi", testContractAddress, testABI)

    // 调用supportsInterface方法
    var isErc721 = exchange.IO("api", testContractAddress, "supportsInterface", interfaceId)

    // 输出信息
    Log("合约地址：", testContractAddress)
    Log("合约名称：", exchange.IO("api", testContractAddress, "name"))
    Log("合约代号：", exchange.IO("api", testContractAddress, "symbol"))
    Log("合约是否为ERC721标准：", isErc721)
}

ٹیسٹ ڈیبگر میں چلائے جا سکتے ہیں:


            run
            
            
2023-06-13 16:32:57		信息	合约是否为ERC721标准： true
2023-06-13 16:32:57		信息	合约代号： BAYC
2023-06-13 16:32:57		信息	合约名称： BoredApeYachtClub
2023-06-13 16:32:57		信息	合约地址： 0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d

پتہ کا تعین کریں۔0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13dمعاہدہ ERC721 معیاری ہے۔

اس لیکچر میں، ہم نے ERC721 معاہدوں کی شناخت کرنے کا طریقہ متعارف کرایا جو ERC165 کے معیارات کی حمایت نہیں کرتے ہیں، ان کی شناخت کے لیے دیگر طریقے استعمال کیے جائیں۔ کیا آپ جانتے ہیں کہ معاہدہ ERC20 معیاری ہے یا نہیں؟

کال ڈیٹا کو انکوڈنگ کرنا

کیا ہےcalldata? مصنف کی سمجھ کے مطابق، یہاں سادہ اور مقبول وضاحت یہ ہے:

"Calldata" ایک فنکشن کال کی انکوڈنگ ہے اور Ethereum میں "Calldata" کو ABI (ایپلی کیشن بائنری انٹرفیس) کی تفصیلات کے مطابق انکوڈ کیا گیا ہے۔

مثال کے طور پر، ہم ERC20 معاہدہ استعمال کر سکتے ہیں جو ہم نے پچھلے کورس میں سیکھا تھا۔balanceOf、transferکال میں استعمال ہونے والے پیرامیٹرز کے ساتھ میتھڈ کال کو بطور انکوڈ کیا گیا ہے۔calldata. کچھ درخواست کے منظرناموں میں، مثال کے طور پر:معاہدوں کے درمیان تعامل، جو اس منظر نامے میں استعمال کیا جائے گا۔calldataیقیناً، بہت سے دوسرے ایپلیکیشن منظرنامے ہیں جو یہاں ایک ایک کرکے درج نہیں کیے گئے ہیں۔

حاصل کرنے کے لیے سمارٹ کنٹریکٹ فنکشن کال کو کوڈ کرنے کا طریقہcalldata？

آپ اسے موجد مقداری تجارتی پلیٹ فارم پر استعمال کر سکتے ہیں۔exchange.IO("encode", ...)سمارٹ کنٹریکٹ فنکشن کالز کو انکوڈنگ کرنا بھی استعمال کرنا بہت آسان ہے۔exchange.IO("encode", ...)فنکشن کا پہلا پیرامیٹر ایک فکسڈ سٹرنگ ہے۔"encode"؛ دوسرا پیرامیٹر سمارٹ کنٹریکٹ کا پتہ ہے؛ بقیہ پیرامیٹر انکوڈ کیے جانے والے سمارٹ کنٹریکٹ کے طریقہ کار کا نام ہے۔

eth_sendRawTransaction

جب ہم ایک سمارٹ کنٹریکٹ میتھڈ کو انکوڈ کرتے ہیں تو کال کرتے ہیں اور اسی کو جنریٹ کرتے ہیں۔calldataڈیٹا تیار کرتے وقت، اگر سمارٹ کنٹریکٹ کا طریقہ رائٹ میتھڈ ہے (یعنی تحریری آپریشن)، تو ہمیں جنریٹ کرنے کی ضرورت ہےcalldataڈیٹا کو ٹرانزیکشن کے ڈیٹا فیلڈ کے طور پر استعمال کیا جاتا ہے، اور پھر Ethereum کا RPC طریقہ استعمال کیا جاتا ہے۔eth_sendRawTransactionEthereum نیٹ ورک کو ایک درخواست بھیجیں جس میں لین دین کا خام ڈیٹا ہو۔

eth_sendRawTransactionطریقہ کار میں صرف ایک پیرامیٹر ہے۔data：

data: The signed transaction (typically signed with a library, using your private key)

یہdataپیرامیٹر ایک ٹرانزیکشن ڈیٹا کے دستخطی حساب کے بعد ڈیٹا ہے Ethereum کے لین دین کے ڈیٹا ڈھانچے میں بنیادی طور پر درج ذیل فیلڈز ہیں:


            javascript
            
            
{
    "nonce": "0x1",                         // 交易发送方的账户交易次数
    "gasPrice": "0x12a05f200",              // 交易的Gas价格
    "gasLimit": "0x5208",                   // 交易的Gas限制
    "to": "0xAb8483F64d9C6d1EcF9b849Ae677dD3315835cb2",    // 目标合约地址或接收方地址
    "value": "0x4563918244F40000",          // 转账的以太币数量
    "data": "0x0123456789ABCDEF",           // 要发送给合约的数据
}

Ethereum لین دین پر دستخط کیسے کریں؟

موجد مقداری تجارتی پلیٹ فارم میں ہم استعمال کرتے ہیں۔Encode()دستخطی کیلکولیشن کو انجام دینے کا فنکشن ہم بعد کے کورس "Executing Write method calldata" میں لکھیں گے۔

پڑھنے کا طریقہ کال ڈیٹا پر عمل کریں۔

پڑھنے کے طریقہ کے لیےcalldataعمل کرنے کے لیے، ہم RPC طریقہ استعمال کرتے ہیں جو ہم نے پہلے سیکھا تھا:eth_callعمل کرنے کے لئے، ہم نے پہلے وضاحت کیeth_callیہ Ethereum RPC طریقہ صرف سمارٹ معاہدے کرتا ہے۔Writeاس باب کا استعمال کرتے ہوئے طریقہ کار کا مظاہرہcalldataمندرجہ ذیل مثال یہ ظاہر کرتی ہے کہ سمارٹ کنٹریکٹ کو پڑھنے کا طریقہ کیسے کہا جائے۔ آئیے WETH معاہدہ استعمال کریں۔balanceOfموجودہ پرس کے WETH ٹوکن بیلنس کو پڑھنے کا طریقہ۔

ہم Ethereum مین نیٹ پر جانچ کرنے کے لیے ڈیبگنگ ٹولز استعمال کرتے ہیں:


            javascript
            
            
function toAmount(s, decimals) {
    return Number((BigDecimal(BigInt(s)) / BigDecimal(Math.pow(10, decimals))).toString())
}

function main() {
    // WETH合约的ABI
    var abiWETH = `[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"guy","type":"address"},{"name":"wad","type":"uint256"}],"name":"approve","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"src","type":"address"},{"name":"dst","type":"address"},{"name":"wad","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"wad","type":"uint256"}],"name":"withdraw","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"dst","type":"address"},{"name":"wad","type":"uint256"}],"name":"transfer","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"deposit","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"},{"name":"","type":"address"}],"name":"allowance","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":true,"name":"src","type":"address"},{"indexed":true,"name":"guy","type":"address"},{"indexed":false,"name":"wad","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"src","type":"address"},{"indexed":true,"name":"dst","type":"address"},{"indexed":false,"name":"wad","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"dst","type":"address"},{"indexed":false,"name":"wad","type":"uint256"}],"name":"Deposit","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"src","type":"address"},{"indexed":false,"name":"wad","type":"uint256"}],"name":"Withdrawal","type":"event"}]`

    // WETH合约地址
    var wethAddress = "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2"

    // 注册WETH合约的ABI
    exchange.IO("abi", wethAddress, abiWETH)

    // 当前配置的交易所对象的钱包地址
    var walletAddress = exchange.IO("address")

    // 编码WETH合约的deposit方法调用
    var calldataForDeposit = exchange.IO("encode", wethAddress, "balanceOf(address)", walletAddress)
    Log("calldataForDeposit:", "0x" + calldataForDeposit)

    // 构造transaction，作为eth_call的第一个参数
    var transaction = {
        "from" : walletAddress,
        "to" : wethAddress,
        "data" : "0x" + calldataForDeposit,
    }

    // eth_call的第二个参数
    var blockNumber = "latest"

    // 使用eth_call调用
    var ret = exchange.IO("api", "eth", "eth_call", transaction, blockNumber)
    var wethBalance = exchange.IO("decode", "uint256", ret)   // 可以使用exchange.IO("decode", ...) 函数解码
    Log("wethBalance:", toAmount(wethBalance, 18))            // 从以wei为单位，换算成WETH个数为单位
}

ڈیبگر میں چلائیں:


            run
            
            
2023-06-15 11:51:31		信息	wethBalance: 0.015
2023-06-15 11:51:31		信息	calldataForDeposit: 0x70a082310000000000000000000000006b3f11d807809b0b1e5e3243df04a280d9f94bf4

اگر سمارٹ کنٹریکٹ کے طریقہ کار کی واپسی کی قدر ہے، تو آپ استعمال کر سکتے ہیں۔exchange.IO("decode", ...)فنکشن ڈی کوڈنگ۔ اسے گزر کر دیکھا جا سکتا ہے۔calldataطریقے اور سمارٹ معاہدوں کے لیے براہ راست کالزbalanceOfطریقہ ایک ہی ہے، اور میرے ٹیسٹ والیٹ کا WETH بیلنس 0.015 WETH ہے۔

لکھنے کا طریقہ کال ڈیٹا پر عمل کریں۔

لکھنے کے طریقہ کار کے کال ڈیٹا پر عمل درآمد کے لیے، آپ کو RPC طریقہ استعمال کرنے کی ضرورت ہے:eth_sendRawTransaction.

ہم Ethereum مین نیٹ پر جانچ کرنے کے لیے ڈیبگنگ ٹولز استعمال کرتے ہیں:


            javascript
            
            
function toAmount(s, decimals) {
    return Number((BigDecimal(BigInt(s)) / BigDecimal(Math.pow(10, decimals))).toString())
}

function toInnerAmount(s, decimals) {
    return (BigDecimal(s)*BigDecimal(Math.pow(10, decimals))).toFixed(0)
}

function main() {
    // WETH合约的ABI
    var abiWETH = `[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"guy","type":"address"},{"name":"wad","type":"uint256"}],"name":"approve","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"src","type":"address"},{"name":"dst","type":"address"},{"name":"wad","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"wad","type":"uint256"}],"name":"withdraw","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"dst","type":"address"},{"name":"wad","type":"uint256"}],"name":"transfer","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"deposit","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"},{"name":"","type":"address"}],"name":"allowance","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":true,"name":"src","type":"address"},{"indexed":true,"name":"guy","type":"address"},{"indexed":false,"name":"wad","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"src","type":"address"},{"indexed":true,"name":"dst","type":"address"},{"indexed":false,"name":"wad","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"dst","type":"address"},{"indexed":false,"name":"wad","type":"uint256"}],"name":"Deposit","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"src","type":"address"},{"indexed":false,"name":"wad","type":"uint256"}],"name":"Withdrawal","type":"event"}]`

    // WETH合约地址
    var wethAddress = "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2"

    // 注册WETH合约的ABI
    exchange.IO("abi", wethAddress, abiWETH)

    // 当前配置的交易所对象的钱包地址
    var walletAddress = exchange.IO("address")

    // 编码WETH合约的deposit方法调用
    var calldataForDeposit = exchange.IO("encode", wethAddress, "deposit")
    Log("calldataForDeposit:", "0x" + calldataForDeposit)

    // 获取nonce
    var nonce = exchange.IO("api", "eth", "eth_getTransactionCount", walletAddress, "pending")

    // 获取gasPrice
    var gasPrice = exchange.IO("api", "eth", "eth_gasPrice")

    // 调用deposit方法把ETH换为WETH，需要转账ETH，这里把0.01ETH转换为以wei为单位的十六进制数值
    var innerAmount = BigInt(Number(toInnerAmount(0.005, 18))).toString(16)

    // The transaction call object:
    var obj = {
        "from" : walletAddress,
        "to"  : wethAddress,
        "gasPrice" : gasPrice,
        "value" : "0x" + innerAmount,
        "data" : "0x" + calldataForDeposit,
    }

    // 计算gasLimit
    var gasLimit = exchange.IO("api", "eth", "eth_estimateGas", obj)

    // 构造交易
    var transaction = {
        "to": wethAddress,
        "value": toAmount("0x" + innerAmount, 0),   // 转换为10进制
        "data": "0x" + calldataForDeposit,
        "gasLimit": toAmount(gasLimit, 0),   // 转换为10进制
        "gasPrice": toAmount(gasPrice, 0),   // 转换为10进制
        "nonce": toAmount(nonce, 0),         // 转换为10进制
        "chainId": 1,                        // 以太坊主网Id
    }
    Log("transaction:", transaction)

    // 签名，your key 替换为你的私钥
    var signedTx = Encode("signTx", "string", "hex", JSON.stringify(transaction), "hex", "0x" + "your key")
    Log("signedTx:", "0x" + signedTx)

    // 调用eth_sendRawTransaction发送交易
    var ret = exchange.IO("api", "eth", "eth_sendRawTransaction", "0x" + signedTx)
    return ret 
}

ڈیبگر میں چلائیں:


            run
            
            
2023-06-15 09:58:50		信息	signedTx: 0xf86f4f8504202067888...
2023-06-15 09:58:50		信息	transaction: {"to":"0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2","value":5000000000000000,"data":"0xd0e30db0","gasLimit":27938,"gasPrice":17718863752,"nonce":79,"chainId":1}
2023-06-15 09:58:50		信息	calldataForDeposit: 0xd0e30db0

لاگوvar ret = exchange.IO("api", "eth", "eth_sendRawTransaction", "0x" + signedTx)فنکشن، لوٹا ہوا ٹرانزیکشن ہیش ہے:0x2ff585504b0fe59b0122f696e8808abfe2f3ce263448066533f3bb8a4f55e8e6. یہeth_sendRawTransactionکال ڈیٹا کو WETH معاہدے پر عمل درآمد کرنے کے لیے کہا جاتا ہے۔depositطریقہ WETH کے لیے بھیجے گئے 0.005 ETH کا تبادلہ کرتا ہے۔

نگرانی mempool

Ethereum پر صارف کے لین دین کو کان کنوں کے ذریعے Ethereum blockchain میں پیک کرنے سے پہلے، تمام لین دین کو جمع کیا جاتا ہے۔Mempoolٹرانزیکشن میموری پول میں، "کان کن" بھی زیادہ فیس کے ساتھ لین دین تلاش کرتے ہیں اور کان کنی کے فوائد کو زیادہ سے زیادہ کرنے کے لیے پہلے انہیں پیک کرتے ہیں۔ لہذا، عام طور پر، لین دین کی گیس کی قیمت جتنی زیادہ مقرر کی جائے گی، پیک کرنا اتنا ہی آسان ہوگا۔

کچھ لین دین کے اسکرپٹ بھی ہوں گے۔Mempoolکچھ منافع بخش سودے تلاش کرنے کی امید میں ادھر ادھر سونگھنا۔ مثال کے طور پر، اگر کوئی ٹرانزیکشن ایک ایکسچینج سلپیج سیٹ کرتا ہے جو بہت زیادہ ہے، تو ان ٹرانزیکشن اسکرپٹس کے ذریعے لین دین کو "سینڈوچ اٹیک" کا نشانہ بنایا جا سکتا ہے۔ تو یہ اسکرپٹ کیسے مانیٹر کرتے ہیں۔Mempoolمیںpending(زیر التواء، پیک کیا جائے گا) معاہدے کے بارے میں کیا خیال ہے؟

REST پروٹوکول کا استعمال کرتے ہوئے سنیں۔

RPC طریقہ کا استعمال کرتے ہوئے ہم نے پہلے سیکھا:eth_getBlockByNumber، لیکن ہم اس بار تفصیلات پوسٹ نہیں کریں گے۔blockNumber، ہم استعمال کرتے ہیں۔"pending"لیبل۔


            javascript
            
            
function main() {
    var data = exchange.IO("api", "eth", "eth_getBlockByNumber", "pending", true)
    if (Array.isArray(data.transactions)) {
        for (var i = 0; i < data.transactions.length; i++) {
            Log(data.transactions[i])
        }
    }
}

ڈیبگر میں چلائیں:


            run
            
            
2023-06-18 19:23:05		信息	{"blockNumber":"0x10b2027","type":"0x2","accessList":[],"blockHash":"0xf833ed36435c53d63bd7109bb1e85383075534410c14573881bf26d912f46a89","from":"0xd50521974d62f1fa34b8e81cb742ccf6147d05ff","gasPrice":"0x32ea2db37","hash":"0xf8f10f8f473c340b021298feb48d0affe529e8737a309c4cc1902e8989ef0914","input":"0xa22cb4650000000000000000000000001e0049783f008a0085193e00003d00cd54003c710000000000000000000000000000000000000000000000000000000000000001","v":"0x0","value":"0x0","maxFeePerGas":"0x48a413364","maxPriorityFeePerGas":"0x5f5e100","nonce":"0x8","r":"0x8c1cc36f43b02c9e9e454153588cc9d38757f1da69ec49d3cfdda74ab69e06a8","s":"0x2f3dd3e5ddf9e5d42c128a8e900026aca7568fa83c68cf332e1328066ee8d03a","transactionIndex":"0x3a","chainId":"0x1","gas":"0x1142d","to":"0x8c3c0274c33f263f0a55d129cfc8eaa3667a9e8b"}
2023-06-18 19:23:05		信息	{"input":"0x646174613a2c7b2270223a226572632d3230222c226f70223a226d696e74222c227469636b223a2265746873222c226964223a223139323732222c22616d74223a2231303030227d","nonce":"0x1d","blockHash":"0xf833ed36435c53d63bd7109bb1e85383075534410c14573881bf26d912f46a89","from":"0xe7fa86855af674837cea1b58f88b5352543ca27b","gas":"0x81cc","gasPrice":"0x32ea2db37","to":"0xe7fa86855af674837cea1b58f88b5352543ca27b","chainId":"0x1","transactionIndex":"0x39","type":"0x2","value":"0x0","accessList":[],"blockNumber":"0x10b2027","hash":"0x55702f5d14736fc9d0c58fdac2d2052a602db171c46b5e1fa9ff6af5c277f9a2","maxFeePerGas":"0x48a413364","maxPriorityFeePerGas":"0x5f5e100","r":"0x5a703d389d23b51adf8ef0f55db8876e7392636797b68a4be6afe73e76d7e1f2","s":"0x4b4bb11257c4434a0acc2672357f8793476e4bfdf98bc30d2389ce335e7de64e","v":"0x1"}
2023-06-18 19:23:05		信息	{"gas":"0x186a0","nonce":"0x46533","r":"0xfeea052a4ac2283ca058a657a806ba0916d8e7d52d2a577f150c40eb1dfbec65","s":"0x5bf0089a3c060ba787b67a205b44e1065a0d11d132b41737ab9adf0f55066811","transactionIndex":"0x38","value":"0x78f0975742c400","blockHash":"0xf833ed36435c53d63bd7109bb1e85383075534410c14573881bf26d912f46a89","chainId":"0x1","hash":"0x56bdf1b38e23db66e8d1c4014d1e9f690a9217d8a0232489210325fc69e25cf9","v":"0x25","input":"0x","type":"0x0","blockNumber":"0x10b2027","gasPrice":"0x4a817c800","from":"0x97b9d2102a9a65a26e1ee82d59e42d1b73b68689","to":"0xcb513e99c020e9d15a6eafef873fef5d9f078221"}
...

ڈیٹا میں سے ایک نکالیں:


            javascript
            
            
{
	"blockNumber": "0x10b2027",
	"type": "0x2",
	"accessList": [],
	"blockHash": "0xf833ed36435c53d63bd7109bb1e85383075534410c14573881bf26d912f46a89",
	"from": "0xd50521974d62f1fa34b8e81cb742ccf6147d05ff",
	"gasPrice": "0x32ea2db37",
	"hash": "0xf8f10f8f473c340b021298feb48d0affe529e8737a309c4cc1902e8989ef0914",
	"input": "0xa22cb4650000000000000000000000001e0049783f008a0085193e00003d00cd54003c710000000000000000000000000000000000000000000000000000000000000001",
	"v": "0x0",
	"value": "0x0",
	"maxFeePerGas": "0x48a413364",
	"maxPriorityFeePerGas": "0x5f5e100",
	"nonce": "0x8",
	"r": "0x8c1cc36f43b02c9e9e454153588cc9d38757f1da69ec49d3cfdda74ab69e06a8",
	"s": "0x2f3dd3e5ddf9e5d42c128a8e900026aca7568fa83c68cf332e1328066ee8d03a",
	"transactionIndex": "0x3a",
	"chainId": "0x1",
	"gas": "0x1142d",
	"to": "0x8c3c0274c33f263f0a55d129cfc8eaa3667a9e8b"
}

WebSocket پروٹوکول کا استعمال کرتے ہوئے سننا

موجد مقداری تجارتی پلیٹ فارم میں، ہم استعمال کرتے ہیں۔Dialتخلیق کرنے کا فنکشنWebSocketدیکھنے کے لیے جڑیں۔FMZ APIدستاویزیDialفنکشن

اس باب میں ٹیسٹ کوڈ Ethereum مین نیٹ ماحول میں چلتا ہے چونکہ یہ مواصلت کے لیے WebSocket پروٹوکول کا استعمال کرتا ہے، اس لیے انوینٹر کوانٹیٹیو ریئل ٹائم ٹیسٹ استعمال کرنا زیادہ آسان ہے۔ ویب ساکٹ پروٹوکول سبسکرپشن پیغام یہ ہے:


            javascript
            
            
{"jsonrpc": "2.0", "id": 1, "method": "eth_subscribe", "params": ["newPendingTransactions"]}

کے علاوہnewPendingTransactions، آپ بھی سبسکرائب کر سکتے ہیں۔newHeads、logs。

وصول کریںWebSocketپش ڈیٹا سے جڑیں:


            javascript
            
            
{
	"jsonrpc": "2.0",
	"method": "eth_subscription",
	"params": {
		"subscription": "0x2c5c087b4aa188e008f4747828ef4e61",
		"result": "0x69c4251cecb814e17cfe7a5ee41742a616f9a4d1bbf245c49b186b1006fd14d3"
	}
}

پھر اس کے مطابق:"result": "0x69c4251cecb814e17cfe7a5ee41742a616f9a4d1bbf245c49b186b1006fd14d3"، مزید انکوائریtransaction. ایک مخصوص کے لیےtransactionہم Ethereum RPC طریقہ استعمال کرتے ہیں۔eth_getTransactionByHashاستفسار کرنا۔


            javascript
            
            
var ws = null 

function main () {    
    // {"jsonrpc": "2.0", "id": 1, "method": "eth_subscribe", "params": ["xxxxx"]}  , "xxxxx" 是订阅的具体消息
    var payload = {"jsonrpc": "2.0", "id": 1, "method": "eth_subscribe", "params": ["newPendingTransactions"]}
    
    // wss://mainnet.infura.io/ws/v3/xxxxx , "xxxxx" 是你的infura key
    var infuraKey = "your key"

    ws = Dial("wss://mainnet.infura.io/ws/v3/" + infuraKey + "|reconnect=true&payload=" + JSON.stringify(payload))
    if (!ws) {
        throw "websocket链接infura失败！"
    }
    
    // eth_getTransactionByHash 调用计数
    var getTransactionCounter = 0

    var beginTS = new Date().getTime()

    // 循环获取消息
    while (true) {
        // 接收推送的消息
        var data = ws.read()
        if (data) {
            var ts = new Date().getTime()

            if (ts - beginTS >= 1000) {
                getTransactionCounter = 0
                beginTS = ts 
            }

            // 根据txHash查询交易详情
            if (ts - beginTS < 1000 && getTransactionCounter >= 100) {
                Sleep(1000)
                getTransactionCounter = 0
                beginTS = ts 
            }
            
            var obj = JSON.parse(data)
            if (obj["params"] && obj["params"]["result"]) {
                var transcationInfo = exchange.IO("api", "eth", "eth_getTransactionByHash", obj["params"]["result"])
                Log(obj["params"]["result"], "transcationInfo:", transcationInfo)
            }
            
            getTransactionCounter++
        }

        LogStatus(_D())
    }
}

function onexit() {
    Log("断开WS连接")
    ws.close()
}

ایک حقیقی ڈسک بنائیں اور اوپر والے کوڈ کو چلائیں آپ کو ویب ساکٹ کنکشن کے ذریعے ڈیٹا کو مسلسل دھکیل دیا جاتا ہے۔transaction：


            javascript
            
            
{
	"maxPriorityFeePerGas": "0x5f5e100",
	"nonce": "0x1a9",
	"accessList": [],
	"blockNumber": "0x10b1c9f",
	"from": "0x5888700be02f52c8adf85890886ef84a6b8a7829",
	"blockHash": "0x92c3d77ea218cdc0967ab74b6005bb393b92355047f206c7e2d59d41828e7fa9",
	"chainId": "0x1",
	"gasPrice": "0x34fdbf43d",
	"s": "0x7d86ae29a786a61b9e74a7a9e2cc4b39b7913aa3d4c3816ccb07528fed82048a",
	"to": "0xfc2068c3d47b575a60f6a4a7bf60dea0ac368e01",
	"type": "0x2",
	"v": "0x1",
	"value": "0x0",
	"gas": "0x1aad3",
	"hash": "0x2c77c0704aefbb26db460cbb71efdb488df968ad53d2c2b3f1e1172056b40b22",
	"input": "0x42842e0e0000000000000000000000005888700be02f52c8adf85890886ef84a6b8a7829000000000000000000000000d2d07e4d1bb0f40ac3e4aa7cc3ad05d348bfd2c3000000000000000000000000000000000000000000000000000000000000180b",
	"maxFeePerGas": "0x4712d1273",
	"r": "0x8ec58f95f6d9729a6eee075e6976658b6c5346cbc90eb68ac361a40af073b10e",
	"transactionIndex": "0xc1"
}

لاگ ڈیٹا کا اقتباس (جزوی طور پر چھوڑ دیا گیا)


            run
            
            
2023-06-18 16:20:07		信息	断开WS连接
2023-06-18 16:20:07		信息	0xba07ca903f9eafbfa7d494bb26197713034b9ca2dd3c19bc0898af3f35b59343 transcationInfo: {"accessList":[],"from":"0xe2977d60182da068dfd78693f96362ee7a2e9644","nonce":"0xf","value":"0x0","blockHash":"0x92c3d77ea218cdc0967ab74b6005bb393b92355047f206c7e2d59d41828e7fa9","blockNumber":"0x10b1c9f","chainId":"0x1","hash":"0xba07ca903f9eafbfa7d494bb26197713034b9ca2dd3c19bc0898af3f35b59343","maxFeePerGas":"0x530c30b70","r":"0xf28bfdf372a5401a2e00675c6ebe8d5e73f2c955db44b1aa56240b9197d6cbc7","type":"0x2","v":"0x0","gas":"0x21079","gasPrice":"0x367b3783d","input":"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","maxPriorityFeePerGas":"0x1dcd6500","s":"0x71d51246bb60e792f963a3c75c46fd8f557921ce6face7224c944e1768a76ca","to":"0x0b51eb9d0e54c562fedc07ceba453f05b70c4b79","transactionIndex":"0x40"}
2023-06-18 16:20:07		信息	0x2c77c0704aefbb26db460cbb71efdb488df968ad53d2c2b3f1e1172056b40b22 transcationInfo: {"maxPriorityFeePerGas":"0x5f5e100","nonce":"0x1a9","accessList":[],"blockNumber":"0x10b1c9f","from":"0x5888700be02f52c8adf85890886ef84a6b8a7829","blockHash":"0x92c3d77ea218cdc0967ab74b6005bb393b92355047f206c7e2d59d41828e7fa9","chainId":"0x1","gasPrice":"0x34fdbf43d","s":"0x7d86ae29a786a61b9e74a7a9e2cc4b39b7913aa3d4c3816ccb07528fed82048a","to":"0xfc2068c3d47b575a60f6a4a7bf60dea0ac368e01","type":"0x2","v":"0x1","value":"0x0","gas":"0x1aad3","hash":"0x2c77c0704aefbb26db460cbb71efdb488df968ad53d2c2b3f1e1172056b40b22","input":"0x42842e0e0000000000000000000000005888700be02f52c8adf85890886ef84a6b8a7829000000000000000000000000d2d07e4d1bb0f40ac3e4aa7cc3ad05d348bfd2c3000000000000000000000000000000000000000000000000000000000000180b","maxFeePerGas":"0x4712d1273","r":"0x8ec58f95f6d9729a6eee075e6976658b6c5346cbc90eb68ac361a40af073b10e","transactionIndex":"0xc1"}
2023-06-18 16:20:07		信息	0xbc42d5db10e5cb2e888c76005c522cb2474a0c0a7325feb867b618f69ff26f2a transcationInfo: {"accessList":[],"blockNumber":"0x10b1c9f","gas":"0x1cc12b","hash":"0xbc42d5db10e5cb2e888c76005c522cb2474a0c0a7325feb867b618f69ff26f2a","maxFeePerGas":"0x6ab262e5c","value":"0x0","v":"0x1","chainId":"0x1","from":"0xc1b634853cb333d3ad8663715b08f41a3aec47cc","input":"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
2023-06-18 16:20:06		信息	0xff0945c3d682a37e18ee433d56c8bedbb93d9ac368af968ed8d53b655575e8e5 transcationInfo: {"gas":"0x5208","s":"0x63572e1fa060841b939cea0849154e55781fe0efcbdfe5ce6979b44ce0980e4a","transactionIndex":"0xa7","value":"0x113e9d515e400","blockHash":"0x92c3d77ea218cdc0967ab74b6005bb393b92355047f206c7e2d59d41828e7fa9","hash":"0xff0945c3d682a37e18ee433d56c8bedbb93d9ac368af968ed8d53b655575e8e5","nonce":"0x2","r":"0x698fe26331ad39ba89c4d30985b707792ea4ab09b25205727f8fac2a6120b54a","gasPrice":"0x35458af00","from":"0x228d93af92d03184c07aa9e39b3d2d61b666686d","input":"0x","to":"0x0246177b98a5e42835cdcfaac1c274d3e6c39486","v":"0x26","blockNumber":"0x10b1c9f","type":"0x0","chainId":"0x1"}
...

ڈی کوڈنگ لین دین کی تفصیلات

آخری کورس میں، ہم نے Ethereum پر زیر التواء ٹرانزیکشنز کی نگرانی کے لیے ایک مانیٹرنگ پروگرام لکھا، WebSocket پروٹوکول کے ذریعے پشڈ ٹرانزیکشن ہیش حاصل کریں، اور پھر ٹرانزیکشن ہیش کی بنیاد پر مخصوص لین دین کی تفصیلات سے استفسار کریں۔

اگلا، ہمیں کرنے کی ضرورت ہےinputفیلڈ ڈیٹا کو مزید پارس کیا جاتا ہے۔inputفیلڈ ڈیٹا بے ترتیب ہیکساڈیسیمل ڈیٹا کی طرح لگتا ہے، لیکن یہ اصل میں لین دین کے مواد کو انکوڈ کرتا ہے: بشمول کہلائے گئے فنکشن اور ان پٹ پیرامیٹرز وغیرہ۔

بار بار اور وسیع جانچ کے بعد، یہ معلوم ہوا کہ ویب ساکٹ کنکشن کے ذریعے دھکیلنے والے ڈیٹا کی بروقت اور مقدار کا اس وقت استعمال ہونے والے RPC نوڈ سے گہرا تعلق ہے جب دو مختلف RPC نوڈ سروسز (جیسے infura اور ALCHEMY) ویب ساکٹ کنکشن بناتے ہیں۔ اسی وقت، موصول ہونے والے پش ڈیٹا وہ بالکل ایک جیسے نہیں ہیں چونکہ موجودہ منظر نامے سے بڑی تعداد میں درخواستیں پیدا ہوں گی، اس لیے اب بھی زیادہ مستحکم اور تیز رفتار RPC سروس کا استعمال ضروری ہے۔ WebSocket کنکشن بہت سے ٹرانزیکشن ہیشز کو بھی آگے بڑھا دے گا جو طویل عرصے سے زیر التواء ہیں۔eth_getTransactionByHashاستفسار کرتے وقت، آپ کو اکثر null ویلیو (FMZ اور node.js پر ٹیسٹ کیا گیا) ملتا ہے۔

ہم نے اس وقت استعمال کیا۔alchemyRPC نوڈس:wss://eth-mainnet.g.alchemy.com/v2/oKmOQKbneVkxgHZfibs-iFhIlIAl6HDN. یہ نوڈ WebSocket پروٹوکول اور REST پروٹوکول دونوں کو سپورٹ کرتا ہے۔

ہم Uniswap وکندریقرت ایکسچینج کے روٹنگ سمارٹ معاہدے کی نگرانی کرتے ہیں۔multicall(uint256,bytes[])طریقہ، تو سب سے پہلے ہمیں اس طریقہ کار کے فنکشن سگنیچر ہیش کا حساب لگانا ہوگا۔


            
            
            
// 取完整哈希值的前8个字符
// multicall: 0x5ae401dc
var sigHash = "0x" + Encode("keccak256", "string", "hex", "multicall(uint256,bytes[])").slice(0, 8)

پچھلے سبق میں دی گئی مثال کی بنیاد پر، ہم نے کچھ ترمیم کی ہے۔ WebSocket کنکشن کے ذریعے بھیجے گئے پیغامات وصول کرتے وقت، استعمال کریں۔var data = ws.read(-2)تازہ ترین ڈیٹا حاصل کریں۔read()فنکشن پیرامیٹر کو -2 پر سیٹ کرنے کا مطلب ہے تازہ ترین ڈیٹا کو فوری طور پر واپس کرنا۔ ہمیں صرف شامل کرنے کی پرواہ ہے۔multicallبلایاTransaction ، استعمال کریں۔if (tx && tx.input.indexOf(sigHash) !== -1)ججمنٹ فلٹرنگ۔

2 کسٹم فنکشنز کو ڈیزائن کرنے کی ضرورت ہے:

calcAllFuncSigHash(): ABI کی بنیاد پر تمام طریقوں کے لیے دستخطی ہیش کا حساب لگاتا ہے۔
decodeCall(): ڈی کوڈنگ فنکشن۔

اگلا، پتہ لگائیںmulticallجب کہا جاتا ہے، ڈی کوڈنگ آپریشن شروع کیا جا سکتا ہےmulticallطریقہ کار کے پیرامیٹرز:deadlineاورdata。deadlineٹائم اسٹیمپ کو سمجھنا آسان ہے۔dataیہ ایک اور انکوڈ شدہ کال ڈیٹا ہے، لہذا ہمیں اس کا استعمال جاری رکھنے کی ضرورت ہے۔decodeCall()فنکشن ڈی کوڈنگ۔

مکمل نفاذ کی مثال:


            javascript
            
            
var ws = null 
var arrLog = []

const ABI_Route = '[{"inputs":[{"internalType":"address","name":"_factoryV2","type":"address"},{"internalType":"address","name":"factoryV3","type":"address"},{"internalType":"address","name":"_positionManager","type":"address"},{"internalType":"address","name":"_WETH9","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"WETH9","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"approveMax","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"approveMaxMinusOne","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"approveZeroThenMax","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"approveZeroThenMaxMinusOne","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes","name":"data","type":"bytes"}],"name":"callPositionManager","outputs":[{"internalType":"bytes","name":"result","type":"bytes"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes[]","name":"paths","type":"bytes[]"},{"internalType":"uint128[]","name":"amounts","type":"uint128[]"},{"internalType":"uint24","name":"maximumTickDivergence","type":"uint24"},{"internalType":"uint32","name":"secondsAgo","type":"uint32"}],"name":"checkOracleSlippage","outputs":[],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes","name":"path","type":"bytes"},{"internalType":"uint24","name":"maximumTickDivergence","type":"uint24"},{"internalType":"uint32","name":"secondsAgo","type":"uint32"}],"name":"checkOracleSlippage","outputs":[],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"bytes","name":"path","type":"bytes"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMinimum","type":"uint256"}],"internalType":"struct IV3SwapRouter.ExactInputParams","name":"params","type":"tuple"}],"name":"exactInput","outputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"tokenIn","type":"address"},{"internalType":"address","name":"tokenOut","type":"address"},{"internalType":"uint24","name":"fee","type":"uint24"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMinimum","type":"uint256"},{"internalType":"uint160","name":"sqrtPriceLimitX96","type":"uint160"}],"internalType":"struct IV3SwapRouter.ExactInputSingleParams","name":"params","type":"tuple"}],"name":"exactInputSingle","outputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"bytes","name":"path","type":"bytes"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"uint256","name":"amountInMaximum","type":"uint256"}],"internalType":"struct IV3SwapRouter.ExactOutputParams","name":"params","type":"tuple"}],"name":"exactOutput","outputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"tokenIn","type":"address"},{"internalType":"address","name":"tokenOut","type":"address"},{"internalType":"uint24","name":"fee","type":"uint24"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"uint256","name":"amountInMaximum","type":"uint256"},{"internalType":"uint160","name":"sqrtPriceLimitX96","type":"uint160"}],"internalType":"struct IV3SwapRouter.ExactOutputSingleParams","name":"params","type":"tuple"}],"name":"exactOutputSingle","outputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"factory","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"factoryV2","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"getApprovalType","outputs":[{"internalType":"enum IApproveAndCall.ApprovalType","name":"","type":"uint8"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"token0","type":"address"},{"internalType":"address","name":"token1","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"amount0Min","type":"uint256"},{"internalType":"uint256","name":"amount1Min","type":"uint256"}],"internalType":"struct IApproveAndCall.IncreaseLiquidityParams","name":"params","type":"tuple"}],"name":"increaseLiquidity","outputs":[{"internalType":"bytes","name":"result","type":"bytes"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"token0","type":"address"},{"internalType":"address","name":"token1","type":"address"},{"internalType":"uint24","name":"fee","type":"uint24"},{"internalType":"int24","name":"tickLower","type":"int24"},{"internalType":"int24","name":"tickUpper","type":"int24"},{"internalType":"uint256","name":"amount0Min","type":"uint256"},{"internalType":"uint256","name":"amount1Min","type":"uint256"},{"internalType":"address","name":"recipient","type":"address"}],"internalType":"struct IApproveAndCall.MintParams","name":"params","type":"tuple"}],"name":"mint","outputs":[{"internalType":"bytes","name":"result","type":"bytes"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"previousBlockhash","type":"bytes32"},{"internalType":"bytes[]","name":"data","type":"bytes[]"}],"name":"multicall","outputs":[{"internalType":"bytes[]","name":"","type":"bytes[]"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"bytes[]","name":"data","type":"bytes[]"}],"name":"multicall","outputs":[{"internalType":"bytes[]","name":"","type":"bytes[]"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes[]","name":"data","type":"bytes[]"}],"name":"multicall","outputs":[{"internalType":"bytes[]","name":"results","type":"bytes[]"}],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"positionManager","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"pull","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"refundETH","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"selfPermit","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"nonce","type":"uint256"},{"internalType":"uint256","name":"expiry","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"selfPermitAllowed","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"nonce","type":"uint256"},{"internalType":"uint256","name":"expiry","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"selfPermitAllowedIfNecessary","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"selfPermitIfNecessary","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMin","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"}],"name":"swapExactTokensForTokens","outputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"uint256","name":"amountInMax","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"}],"name":"swapTokensForExactTokens","outputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amountMinimum","type":"uint256"},{"internalType":"address","name":"recipient","type":"address"}],"name":"sweepToken","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amountMinimum","type":"uint256"}],"name":"sweepToken","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amountMinimum","type":"uint256"},{"internalType":"uint256","name":"feeBips","type":"uint256"},{"internalType":"address","name":"feeRecipient","type":"address"}],"name":"sweepTokenWithFee","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amountMinimum","type":"uint256"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"feeBips","type":"uint256"},{"internalType":"address","name":"feeRecipient","type":"address"}],"name":"sweepTokenWithFee","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"int256","name":"amount0Delta","type":"int256"},{"internalType":"int256","name":"amount1Delta","type":"int256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"uniswapV3SwapCallback","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountMinimum","type":"uint256"},{"internalType":"address","name":"recipient","type":"address"}],"name":"unwrapWETH9","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountMinimum","type":"uint256"}],"name":"unwrapWETH9","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountMinimum","type":"uint256"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"feeBips","type":"uint256"},{"internalType":"address","name":"feeRecipient","type":"address"}],"name":"unwrapWETH9WithFee","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountMinimum","type":"uint256"},{"internalType":"uint256","name":"feeBips","type":"uint256"},{"internalType":"address","name":"feeRecipient","type":"address"}],"name":"unwrapWETH9WithFee","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"value","type":"uint256"}],"name":"wrapETH","outputs":[],"stateMutability":"payable","type":"function"},{"stateMutability":"payable","type":"receive"}]'

function calcAllFuncSigHash(jsonABI) {
    var mapSigHash = {}
    for (var i in jsonABI) {
        var ele = jsonABI[i]
        if (typeof(ele["name"]) != "undefined") {
            if (ele["inputs"]) {
                var funcName = ele["name"]
                if (ele["inputs"].length == 0) {
                    var methodId = "0x" + Encode("keccak256", "string", "hex", funcName + "()").slice(0, 8)
                    mapSigHash[methodId] = {"argsTypeList": [], "argsNameList": [], "funcName": funcName}
                } else {
                    var arr = []
                    var arrName = []
                    var argPrototype = []
                    for (var j in ele["inputs"]) {
                        var inputType = ele["inputs"][j]["type"]
                        if (inputType == "tuple") {                            
                            var components = ele["inputs"][j]["components"]
                            var tupleType = []
                            var protoType = []
                            for (var componentsIdx = 0; componentsIdx < components.length; componentsIdx++) {
                                tupleType.push(components[componentsIdx]["type"])
                                protoType.push(components[componentsIdx]["name"] + " " + components[componentsIdx]["type"])
                            }
                            arr.push("(" + tupleType.join() + ")")
                            arrName.push(ele["inputs"][j]["name"])
                            // 原型
                            argPrototype.push("tuple" + "(" + protoType.join() + ")")
                        } else {
                            arr.push(inputType)
                            arrName.push(ele["inputs"][j]["name"])
                            // 原型
                            argPrototype.push(inputType)
                        }                        
                    }
                    var functionSignature = funcName + "(" + arr.join() + ")"
                    var methodId = "0x" + Encode("keccak256", "string", "hex", functionSignature).slice(0, 8)
                    mapSigHash[methodId] = {"argsTypeList": arr, "argsNameList": arrName, "funcName": funcName, "argPrototype": argPrototype}
                }
            }
        }
    }
    return mapSigHash
}

function decodeCall(input, abi) {
    var mapSigHash = calcAllFuncSigHash(JSON.parse(abi))
    var methodId = input.slice(0, 10)
    var data = input.slice(10)
    
    var decodedArgs = {}
    var infoMethod = mapSigHash[methodId]
    if (typeof(infoMethod) == "undefined") {
        return [methodId, mapSigHash]
    }
    
    var arr = []
    for (var i = 0; i < infoMethod["argsTypeList"].length; i++) {
        if (infoMethod["argsTypeList"][i].startsWith("(")) {
            arr.push(infoMethod["argPrototype"][i])
        } else {
            arr.push(infoMethod["argsTypeList"][i])
        }
    }
    
    if (arr.length == 0) {
        return {"funcName": infoMethod["funcName"], "args": decodedArgs}
    }

    var args = exchange.IO("decode", arr.join(), data)

    if (!Array.isArray(args)) {
        args = [args]
    }

    if (args.length != infoMethod["argsNameList"].length) {
        Log("args:", args)
        Log("infoMethod:", infoMethod)
        throw "解码后的args与argsNameList不等"
    }

    for (var i = 0; i < infoMethod["argsNameList"].length; i++) {
        var key = infoMethod["argsNameList"][i]
        var value = args[i]
        decodedArgs[key] = value
    }

    return {"funcName": infoMethod["funcName"], "args": decodedArgs}
}

function main () {
    // {"jsonrpc": "2.0", "id": 1, "method": "eth_subscribe", "params": ["xxxxx"]}  , "xxxxx" 是订阅的具体消息
    var payload = {"jsonrpc": "2.0", "id": 1, "method": "eth_subscribe", "params": ["newPendingTransactions"]}
    
    // 使用alchemy服务
    ws = Dial("wss://eth-mainnet.g.alchemy.com/v2/oKmOQKbneVkxgHZfibs-iFhIlIAl6HDN" + "|reconnect=true&payload=" + JSON.stringify(payload))
    if (!ws) {
        throw "websocket链接alchemy失败！"
    }
    
    // eth_getTransactionByHash 调用计数
    var getTransactionCounter = 0
    
    // 起始时间戳
    var beginTS = new Date().getTime()
    
    // 计算函数签名哈希
    var sigHash = "0x" + Encode("keccak256", "string", "hex", "multicall(uint256,bytes[])").slice(0, 8)
    Log("sigHash:", sigHash)

    // 循环获取消息
    while (true) {
        var msg = ""
        var recv = null
        // 接收推送的消息，使用read参数-2，立即返回最新数据
        var data = ws.read(-2)
        if (data && data != "") {
            var ts = new Date().getTime()

            if (ts - beginTS >= 1000) {
                getTransactionCounter = 0
                beginTS = ts 
            }

            // 根据txHash查询交易详情
            if (ts - beginTS < 1000 && getTransactionCounter >= 100) {
                Sleep(1000)
                getTransactionCounter = 0
                beginTS = ts 
            }
            
            var obj = JSON.parse(data)
            if (obj["params"] && obj["params"]["result"]) {
                var txHash = obj["params"]["result"]
                var tx = exchange.IO("api", "eth", "eth_getTransactionByHash", txHash)
                
                if (tx && tx.input.indexOf(sigHash) !== -1) {
                    // 解码交易详情
                    arrLog = []
                    var decodedInput = decodeCall(tx.input, ABI_Route)

                    // Log("----------------", txHash, "/", decodedInput["funcName"], "----------------", "#FF0000")
                    arrLog.push("----------------" + txHash + "/" + decodedInput["funcName"] + "----------------" + "#FF0000")
                    arrLog.push(tx.from + " -> " + tx.to)

                    for (var i = 0; i < decodedInput["args"]["data"].length; i++) {
                        var calldata = "0x" + decodedInput["args"]["data"][i]
                        var decodedCalldata = decodeCall(calldata, ABI_Route)

                        // Log("----------------", decodedCalldata["funcName"], "----------------", "#FF0000")
                        arrLog.push("----------------" + decodedCalldata["funcName"] + "----------------" + "#FF0000")

                        for (var key in decodedCalldata["args"]) {
                            // Log(key, decodedCalldata["args"][key])
                            arrLog.push(key + ": " + JSON.stringify(decodedCalldata["args"][key]))
                        }
                    }

                    // 输出日志
                    for (var logIdx = arrLog.length - 1; logIdx >= 0; logIdx--) {
                        Log(arrLog[logIdx])
                    }
                }
                
                getTransactionCounter++
            }
            recv = obj
        } else if (data == null) {
            msg = "缓冲区队列空了,时间：" + _D()
        }
        
        LogStatus(_D(), ", msg:", msg, ", recv:", recv)
    }
}

function onexit() {
    Log("断开WS连接")
    ws.close()
}

function onerror() {
    Log("断开WS连接")
    ws.close()

    for (var logIdx = arrLog.length - 1; logIdx >= 0; logIdx--) {        
        Log(arrLog[logIdx])
    }
}

ٹیسٹ چلانے کے لیے ایک حقیقی ڈسک بنائیں:


            run
            
            
2023-06-20 17:01:00		信息	----------------0x5288a7bd6e0f57162ca763df722de73793e542734d7d2b7af5755664e2e67910/multicall----------------
2023-06-20 17:01:00		信息	0x851b594033d57c98af753bcb3a7d0237a615de32 -> 0x68b3465833fb72a70ecdf485e0e4c7bd8665fc45
2023-06-20 17:01:00		信息	----------------exactInputSingle----------------
2023-06-20 17:01:00		信息	params: {"tokenOut":"0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2","fee":"10000","recipient":"0x0000000000000000000000000000000000000002","amountIn":"8952087000296027130940868","amountOutMinimum":"41638694112306829","sqrtPriceLimitX96":"0","tokenIn":"0xe1283567345349942acdfad3692924a1b16cf3cc"}
2023-06-20 17:01:00		信息	----------------unwrapWETH9----------------
2023-06-20 17:01:00		信息	amountMinimum: "41638694112306829"
2023-06-20 17:01:00		信息	recipient: "0x851b594033d57c98af753bcb3a7d0237a615de32"
2023-06-20 16:59:03		信息	----------------0x55e0c4a38a17d3aa6e8f558a66c77e9defa9f8f6e347536363ac1b921de9aaf3/multicall----------------
2023-06-20 16:59:03		信息	0x27457ada2dd725c7d0f28e1737bdd0bf583c0f0b -> 0x68b3465833fb72a70ecdf485e0e4c7bd8665fc45
2023-06-20 16:59:03		信息	----------------swapExactTokensForTokens----------------
2023-06-20 16:59:03		信息	amountIn: "816769666850161"
2023-06-20 16:59:03		信息	amountOutMin: "40404501509302321"
2023-06-20 16:59:03		信息	path: ["0x7863e06bca47ded821fcb53ab788eeb371243eda","0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2"]
2023-06-20 16:59:03		信息	to: "0x27457ada2dd725c7d0f28e1737bdd0bf583c0f0b"
2023-06-20 16:58:25		信息	sigHash: 0x5ae401dc

اسکرین شاٹ:

آپ دیکھ سکتے ہیں کہ ٹرانزیکشن ہیش ہے۔0x5288a7bd6e0f57162ca763df722de73793e542734d7d2b7af5755664e2e67910اس لین دین کے لیے، ان پٹ ڈیٹا میں کال ہوتی ہے۔multicallطریقہ کال۔ لین دین کی سمت ہے: 0x851b594033d57c98af753bcb3a7d0237a615de32 -> 0x68b3465833fb72a70ecdf485e0e4c7bd8665fc45۔0x68b3465833fb72a70ecdf485e0e4c7bd8665fc45یعنی Uniswap کا روٹنگ کنٹریکٹ ایڈریس۔

تجزیہ کیا۔multicallپیکیج معاہدے کو کہتے ہیں۔exactInputSingleاورunwrapWETH9طریقے، اور ان طریقوں کے مخصوص پیرامیٹرز۔


            
            
            
----------------exactInputSingle----------------
params: {
    "tokenOut":"0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
    "fee":"10000",
    "recipient":"0x0000000000000000000000000000000000000002",
    "amountIn":"8952087000296027130940868",
    "amountOutMinimum":"41638694112306829",
    "sqrtPriceLimitX96":"0",
    "tokenIn":"0xe1283567345349942acdfad3692924a1b16cf3cc"
}

----------------unwrapWETH9----------------
amountMinimum: "41638694112306829"
recipient: "0x851b594033d57c98af753bcb3a7d0237a615de32"

دلچسپی رکھنے والے طلباء مزید لین دین کی نگرانی اور ان آن چین آپریشنز کا تجزیہ کرنے کے لیے اس مثال میں ترمیم اور توسیع کر سکتے ہیں۔

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EtherEaseWithFMZ ٹیوٹوریل

FMZ کے ساتھ شروع کرنا

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eth_blockNumbe

eth_getBlockByNumber

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ABI رجسٹر کرنا

سمارٹ معاہدے کے طریقوں کو کال کرنا

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ETH بھیجیں۔

ایتھرئم سمارٹ کنٹریکٹ کو کال کرنا

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Uniswap V3

استفسارUniswap V3روٹنگ کے معاہدے کی اجازت

اجازتUniswap V3روٹنگ کا معاہدہ

Uniswap کا استعمال کرتے ہوئے ٹوکن سویپ

پول میں زر مبادلہ کی قیمت حاصل کریں۔

یونیسیاپ V3 ٹریڈنگ لائبریری

واقعات کی بازیافت کریں۔

eth_getLogs

نوشتہ جات بازیافت کریں۔

معاہدے کے واقعات کی نگرانی کریں۔

ایونٹ فلٹرنگ

یونٹ کی تبدیلی

BigInt

BigFloat

BigDecimal

یونٹ کی تبدیلی

کال کی نقل کریں۔

eth_call

کالنگ کی منظوری کی تقلید کریں۔

کالنگ ٹرانسفر کی تقلید کریں۔

ERC721 معاہدوں کی شناخت کریں۔

ERC165

ERC721

کال ڈیٹا کو انکوڈنگ کرنا

eth_sendRawTransaction

پڑھنے کا طریقہ کال ڈیٹا پر عمل کریں۔

لکھنے کا طریقہ کال ڈیٹا پر عمل کریں۔

نگرانی mempool

REST پروٹوکول کا استعمال کرتے ہوئے سنیں۔

WebSocket پروٹوکول کا استعمال کرتے ہوئے سننا

ڈی کوڈنگ لین دین کی تفصیلات

استفسار`Uniswap V3`روٹنگ کے معاہدے کی اجازت

اجازت`Uniswap V3`روٹنگ کا معاہدہ