QCoder
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tập trung vào
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Người theo dõi
Các nhà phát minh nền tảng chính thức truy cập vào các cuộc gọi tương tác hợp đồng trên chuỗi web3. Mô hình này là một thư viện giao dịch kiểu như uniswap v3, với khả năng di động để dễ dàng truy cập vào các sàn giao dịch khác của defi
Hướng dẫn gọi hàm như sau, tài liệu chi tiết sau khi hoàn thành sẽ được tích hợp vào tài liệu API nền tảng, trước tiên hãy đưa ra một số ví dụ
Gọi hợp đồng nếu là phương thức ERC20 tiêu chuẩn không cần đăng ký, gọi trực tiếp, tham số thứ ba có khả năng tương thích mạnh để viết tên phương thức, methodId như “0x571ac8b0”, cũng có thể viết tên phương thức tiêu chuẩn đầy đủ Các phương thức thuộc thuộc tính constant trả về kết quả hàm trực tiếp, các phương thức không constant như approve trả về txid trực tiếp sau khi phát sóng
exchange.IO("api", tokenAddress, "decimals")
exchange.IO("api", tokenAddress, "approve", 0x......., "0xfffffffffffff")
exchange.IO("api", tokenAddress, "approve(address,uint256)", 0x......., "0xfffffffffffff")
Gọi các phương thức khác ngoài hợp đồng tiêu chuẩn cần đăng ký nội dung ABI, xem chi tiết trong mẫu code ví dụ này, đăng ký các phương thức khác mà hợp đồng có thể được gọi
exchange.IO("abi", tokenAddress, abiContent)
Các nội dung ABI của hợp đồng có thể được truy cập qua URL dưới đây, chỉ lấy trường result
https://api.etherscan.io/api?module=contract&action=getabi&address=0x68b3465833fb72A70ecDF485E0e4C7bD8665Fc45
Nếu phương thức được gọi là payable, bạn cần thêm một giá trị chuyển ETH sau tên phương thức (thì giá trị thứ tư), như giá trị tham số trong hàm dưới đây là 123, và tất nhiên cũng có thể truyền số của chuỗi
exchange.IO("api", ContractV3SwapRouterV2, "multicall(uint256,bytes[])", 123, (new Date().getTime() / 1000) + 3600, "")
Bạn cũng có thể truyền vào các tham số dư định gasLimit/gasPrice/nonce
exchange.IO("api", ContractV3SwapRouterV2, "multicall(uint256,bytes[])", ..., {gasPrice: 123456, gasLimit: 21000})
Nếu tham số thứ hai của IO làethCác phương thức RPC có thể được sử dụng cho các node server, như:
exchange.IO("api", "eth", "eth_getBalance", self.walletAddress, "latest")
Để dễ dàng chuyển tiền, thêm chức năng send để gửi ETH
exchange.IO("api", "eth", "send", toAddress, toAmount)
Cung cấp các phương thức encode/encodePacked và decode, có thể quay lại mã hóa function call vào định dạng hex string, có thể đọc được các cuộc gọi multicall của uniswap v3 trong mã mẫu này
// can encode with tuple
let types = "tuple(a uint256,b uint8,c address),bytes"
let ret = exchange.IO("encode", types, {
a: 30,
b: 20,
c: "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2"
}, "0011")
Log("encode: ", ret)
// decode tuple
Log("decode:", exchange.IO("decode", types, ret))
// join packed types
let path = exchange.IO("encodePacked", "address,uint24,address", tokenAddressMap['1INCH'], 3000, tokenAddressMap['USDT'])
// pack method call
let rawData = exchange.IO("encode", ContractV3SwapRouterV2, "checkOracleSlippage(bytes,uint24,uint32)", path, 10000, 600)
// parse abi raw data
Log("method hash:", rawData.slice(0, 8))
Bạn có thể chuyển khóa cá nhân bất cứ lúc nào và điều khiển nhiều địa chỉ, chẳng hạn như
exchange.IO("key", "219103fb1e058720b8431580cdc61ed77a270bac1f87503145b9e9b5cd8a92ce")
Quy tắc chuyển đổi biến bên trong ABI
address: chuỗi bắt đầu bằng 0x bytes: chuỗi được mã hóa bằng 16 số, như 008395 “ uint256: có thể là một chuỗi hoặc một số “0x12345” hoặc 123 tuple: cấu trúc truyền trực tiếp, như {path: “”, amountIn: 0x123} Các loại truyền trực tiếp khác
Ví dụ gọi mẫu uniswap như sau, thêm giao dịch Web3, điền vào địa chỉ nút với khóa riêng, khóa riêng có thể được lưu trữ cục bộ (được viết là đường dẫn tệp), xem thêm tài liệu API
Địa chỉ nút có thể được thay thế để cấu hình cho khóa của riêng mình sau khi đăng ký nút miễn phí của infura https://mainnet.infura.io/v3/{apikey}
$.testUniswap = function() {
let ex = $.NewUniswapV3()
Log("walletAddress: ", ex.walletAddress)
let tokenAddressMap = {
"ETH": "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2", // WETH
"USDT": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"1INCH": "0x111111111117dC0aa78b770fA6A738034120C302",
}
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 to ETH
Log(ex.swapToken('USDT', usdtBalance, 'DAI,ETH'))
Log("balance of ETH", ex.getETHBalance())
// Log(ex.sendETH('0x11111', 0.02))
}
Mã nguồn chiến lược
/* jshint esversion: 7 */
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"}]';
const ABI_Pool = '[{\"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\"}]'
const ABI_Factory = '[{\"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\"}]'
let ContractV3Factory = "0x1F98431c8aD98523631AE4a59f267346ea31F984"
let ContractV3SwapRouterV2 = "0x68b3465833fb72A70ecDF485E0e4C7bD8665Fc45"
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 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)
}
$.NewUniswapV3 = function(e) {
e = e || exchange
if (e.GetName() !== 'Web3') {
panic("only support Web3 exchange")
}
let self = {
tokenInfo: {},
walletAddress: e.IO("address"),
pool: {}
}
self.init = function() {
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)
}
}
// 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")
}
// register
e.IO("abi", ContractV3Factory, ABI_Factory)
e.IO("abi", ContractV3SwapRouterV2, ABI_Route)
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
}
}
})
}
}
self.addToken = function(name, address) {
let ret = e.IO("api", address, "decimals")
if (!ret) {
throw "get token decimals failed"
}
let decimals = Number(ret)
self.tokenInfo[name] = {
name: name,
decimals: decimals,
address: address
}
}
self.waitMined = function(tx) {
while (true) {
Sleep(1000)
let info = e.IO("api", "eth", "eth_getTransactionReceipt", tx)
if (info && info.gasUsed) {
return true
}
Log('Transaction not yet mined', tx)
}
}
self.swapToken = function(tokenIn, amountInDecimal, tokenOut, options) {
// options like {gasPrice: 11, gasLimit: 111, nonce: 111}
let tokenInInfo = self.tokenInfo[tokenIn]
if (!tokenInInfo) {
throw "not found token info " + tokenIn
}
let tokenOutInfo = null
tokenOut.split(',').forEach(function(token) {
tokenOutInfo = self.tokenInfo[token]
if (!tokenOutInfo) {
throw "not found token info " + token
}
})
if (!tokenOutInfo) {
throw "not found token out info"
}
let amountIn = toInnerAmount(amountInDecimal, tokenInInfo.decimals)
let recipientAddress = self.walletAddress
if (tokenInInfo.name != 'ETH') {
let allowanceAmount = e.IO("api", tokenInInfo.address, "allowance", self.walletAddress, ContractV3SwapRouterV2);
let realAmount = toAmount(allowanceAmount, tokenInInfo.decimals)
if (realAmount < toAmount(amountIn, tokenInInfo.decimals)) {
Log("realAmount is", realAmount, "too small, try to approve large amount")
if (tokenInInfo.name == 'USDT') {
// As described in Tether code: To change the approve amount you first have to reduce the addresses allowance to 0 calling approve(spender, 0)
let txApprove = e.IO("api", tokenInInfo.address, "approve", ContractV3SwapRouterV2, 0)
if (!txApprove) {
throw "approve error"
}
Log("wait reduce approve", txApprove)
self.waitMined(txApprove)
}
let txApprove = e.IO("api", tokenInInfo.address, "approve", ContractV3SwapRouterV2, '0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff');
if (!txApprove) {
throw "approve error"
}
Log("wait approve", txApprove)
self.waitMined(txApprove)
Log("approve success amountIn", amountIn)
} else {
Log("allowance", realAmount, "no need to approve")
}
}
if (tokenOutInfo.name == 'ETH' || tokenOutInfo.address.toLowerCase() == '0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2') {
/*
ADDRESS_THIS https://degencode.substack.com/p/uniswapv3-multicall
https://etherscan.io/address/0x68b3465833fb72a70ecdf485e0e4c7bd8665fc45#code
*/
recipientAddress = '0x0000000000000000000000000000000000000002'
}
let fee = e.IO("encodePacked", "uint24", 3000) // 3 bytes
// https://github.com/Uniswap/v3-periphery/blob/main/contracts/libraries/Path.sol
let path = tokenInInfo.address.slice(2).toLowerCase()
tokenOut.split(',').forEach(function(token) {
// address only use 20 bytes
path += fee + self.tokenInfo[token].address.slice(2).toLowerCase()
})
let minOut = 1
if (options && typeof(options.minOut) == 'number') {
minOut = toInnerAmount(options.minOut, tokenOutInfo.decimals)
}
let swapToken = e.IO("encode", ContractV3SwapRouterV2, "exactInput", {
path: path,
recipient: recipientAddress,
amountIn: amountIn,
amountOutMinimum: minOut
})
let data = [swapToken]
if (tokenOutInfo.name == 'ETH') {
data.push(e.IO("encode", ContractV3SwapRouterV2, "unwrapWETH9(uint256,address)", 1, self.walletAddress))
}
let tx = e.IO("api", ContractV3SwapRouterV2, "multicall(uint256,bytes[])", (tokenInInfo.name == 'ETH' ? amountIn : 0), (new Date().getTime() / 1000) + 3600, data, options || {})
if (tx) {
Log("tx: ", tx)
self.waitMined(tx)
Log("swap", tokenInInfo.name, "to", tokenOutInfo.name, "success")
return true
} else {
Log("trans error")
return false
}
}
self.getETHBalance = function(address) {
return toAmount(e.IO("api", "eth", "eth_getBalance", address || self.walletAddress, "latest"), 18)
}
self.balanceOf = function(token, address) {
let tokenInfo = self.tokenInfo[token]
if (!tokenInfo) {
throw "not found token info " + token
}
return toAmount(e.IO("api", tokenInfo.address, "balanceOf", address || self.walletAddress), tokenInfo.decimals)
}
self.sendETH = function(to, amount, options) {
return e.IO("api", "eth", "send", to, toInnerAmount(amount, 18), options || {})
}
self.transferToken = function(token, to, amount) {
let tokenInfo = self.tokenInfo[token]
if (!tokenInfo) {
throw "not found token info " + token
}
return e.IO("api", tokenInfo.address, "transfer", to, toInnerAmount(amount, tokenInfo.decimals))
}
// uniswap methods
self.getPrice = function(pair, fee) {
// fee can be 100,500,3000,10000
let arr = pair.split('_')
let token0 = self.tokenInfo[arr[0]]
if (!token0) {
throw "token " + arr[0] + "not found"
}
let token1 = self.tokenInfo[arr[1]]
if (!token1) {
throw "token " + arr[1] + "not found"
}
let reverse = false
if (BigInt(token0.address) > BigInt(token1.address)) {
let tmp = token0
token0 = token1
token1 = tmp
reverse = true
}
if (typeof(fee) !== 'number') {
fee = 3000
}
let key = token0.address + '/' + token1.address + '/' + fee.toString()
if (typeof(self.pool[key]) == 'undefined') {
let pool = e.IO("api", ContractV3Factory, "getPool", token0.address, token1.address, fee)
if (pool) {
self.pool[key] = pool
// register pool address
e.IO("abi", pool, ABI_Pool)
}
}
if (typeof(self.pool[key]) == 'undefined') {
throw "pool " + pair + " not found"
}
let slot0 = e.IO("api", self.pool[key], "slot0")
if (!slot0) {
return null
}
//Log(pair, token0.decimals, token1.decimals, slot0.sqrtPriceX96)
let price = computePoolPrice(token0.decimals, token1.decimals, slot0.sqrtPriceX96)
if (reverse) {
price = 1 / price
}
return price
}
self.init()
return self
}
$.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))
// test pack and unpack
if (false) {
// can pack tuple
let types = "tuple(a uint256,b uint8,c address),bytes"
let ret = exchange.IO("pack", types, {
a: 30,
b: 20,
c: "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2"
}, "0011")
Log("encode: ", ret)
// unpack tuple
Log("decode:", exchange.IO("decode", types, ret))
// join packed types
let path = exchange.IO("encodePacked", "address,uint24,address", tokenAddressMap['1INCH'], 3000, tokenAddressMap['USDT'])
Log("path:", path)
// encode method call
let rawData = exchange.IO("encode", ContractV3SwapRouterV2, "checkOracleSlippage(bytes,uint24,uint32)", path, 10000, 600)
// parse abi raw data
Log("method hash:", rawData.slice(0, 8))
}
}