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Get Started with web3 Development Easily Based on Ethereum Using FMZ

创建于: 2023-06-25 09:17:53, 更新于: 2024-11-11 22:34:49
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“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]))
                    }
                }

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

            getTransactionCounter++
        }
        recv = obj
    } else if (data == null) {
        msg = "The buffer queue is empty, time:" + _D()
    }

    LogStatus(_D(), ", msg:", msg, ", recv:", recv)
}

}

function onexit() { Log(“Disconnect WS connection”) ws.close() }

function onerror() { Log(“Disconnect WS connection”) ws.close()

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

}


Create a live trading to test:

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

Screenshot:

Get Started with web3 Development Easily Based on Ethereum Using FMZ

You can see that the Transaction Hash is 0x5288a7bd6e0f57162ca763df722de73793e542734d7d2b7af5755664e2e67910 for this transaction, and the input data data contains the call to a multicall method call. This transaction is sent in the direction: 0x851b594033d57c98af753bcb3a7d0237a615de32 -> 0x68b3465833fb72a70ecdf485e0e4c7bd8665fc45. 0x68b3465833fb72a70ecdf485e0e4c7bd8665fc45 is Uniswap’s router contract address.

Get Started with web3 Development Easily Based on Ethereum Using FMZ

The multicall package is parsed to call the contract’s exactInputSingle and unwrapWETH9 methods and the specific parameters of these methods.

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

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

If you are interested, you can modify and extend the example based on it to monitor more transactions and parse these on-chain operations.

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