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johngrantuk/txParsing.js

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txParsing.js
// npm add @ethersproject/abi
import { Interface } from '@ethersproject/abi';
function transactionParsing(){
console.log(`transactionParsing`);
const proxyArtifact = require('./abi/ExchangeProxy.json'); // See below
const iface = new Interface(proxyArtifact.abi);
let ipData = `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`;
let test = iface.parseTransaction({ data: ipData });
console.log(test);
console.log(test.args.swapSequences);
console.log(test.functionFragment.name);
/*
Lets filter out and display:
function type
tokenIn
tokenOut
And would be good to start parsing swapSequences for future
Example output:
function multihopBatchSwapExactOut(
Swap[][] memory swapSequences,
TokenInterface tokenIn,
TokenInterface tokenOut,
uint maxTotalAmountIn
)
public payable
returns (uint totalAmountIn)
{
*/
}
transactionParsing();
/*
./abi/ExchangeProxy.json
{
"contractName": "ExchangeProxy",
"abi": [
{
"inputs": [
{
"internalType": "address",
"name": "_weth",
"type": "address"
}
],
"payable": false,
"stateMutability": "nonpayable",
"type": "constructor"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"internalType": "address",
"name": "previousOwner",
"type": "address"
},
{
"indexed": true,
"internalType": "address",
"name": "newOwner",
"type": "address"
}
],
"name": "OwnershipTransferred",
"type": "event"
},
{
"payable": true,
"stateMutability": "payable",
"type": "fallback"
},
{
"constant": false,
"inputs": [
{
"components": [
{
"internalType": "address",
"name": "pool",
"type": "address"
},
{
"internalType": "address",
"name": "tokenIn",
"type": "address"
},
{
"internalType": "address",
"name": "tokenOut",
"type": "address"
},
{
"internalType": "uint256",
"name": "swapAmount",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "limitReturnAmount",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "maxPrice",
"type": "uint256"
}
],
"internalType": "struct ExchangeProxy.Swap[]",
"name": "swaps",
"type": "tuple[]"
},
{
"internalType": "contract TokenInterface",
"name": "tokenIn",
"type": "address"
},
{
"internalType": "contract TokenInterface",
"name": "tokenOut",
"type": "address"
},
{
"internalType": "uint256",
"name": "totalAmountIn",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "minTotalAmountOut",
"type": "uint256"
}
],
"name": "batchSwapExactIn",
"outputs": [
{
"internalType": "uint256",
"name": "totalAmountOut",
"type": "uint256"
}
],
"payable": true,
"stateMutability": "payable",
"type": "function"
},
{
"constant": false,
"inputs": [
{
"components": [
{
"internalType": "address",
"name": "pool",
"type": "address"
},
{
"internalType": "address",
"name": "tokenIn",
"type": "address"
},
{
"internalType": "address",
"name": "tokenOut",
"type": "address"
},
{
"internalType": "uint256",
"name": "swapAmount",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "limitReturnAmount",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "maxPrice",
"type": "uint256"
}
],
"internalType": "struct ExchangeProxy.Swap[]",
"name": "swaps",
"type": "tuple[]"
},
{
"internalType": "contract TokenInterface",
"name": "tokenIn",
"type": "address"
},
{
"internalType": "contract TokenInterface",
"name": "tokenOut",
"type": "address"
},
{
"internalType": "uint256",
"name": "maxTotalAmountIn",
"type": "uint256"
}
],
"name": "batchSwapExactOut",
"outputs": [
{
"internalType": "uint256",
"name": "totalAmountIn",
"type": "uint256"
}
],
"payable": true,
"stateMutability": "payable",
"type": "function"
},
{
"constant": true,
"inputs": [],
"name": "isOwner",
"outputs": [
{
"internalType": "bool",
"name": "",
"type": "bool"
}
],
"payable": false,
"stateMutability": "view",
"type": "function"
},
{
"constant": false,
"inputs": [
{
"components": [
{
"internalType": "address",
"name": "pool",
"type": "address"
},
{
"internalType": "address",
"name": "tokenIn",
"type": "address"
},
{
"internalType": "address",
"name": "tokenOut",
"type": "address"
},
{
"internalType": "uint256",
"name": "swapAmount",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "limitReturnAmount",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "maxPrice",
"type": "uint256"
}
],
"internalType": "struct ExchangeProxy.Swap[][]",
"name": "swapSequences",
"type": "tuple[][]"
},
{
"internalType": "contract TokenInterface",
"name": "tokenIn",
"type": "address"
},
{
"internalType": "contract TokenInterface",
"name": "tokenOut",
"type": "address"
},
{
"internalType": "uint256",
"name": "totalAmountIn",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "minTotalAmountOut",
"type": "uint256"
}
],
"name": "multihopBatchSwapExactIn",
"outputs": [
{
"internalType": "uint256",
"name": "totalAmountOut",
"type": "uint256"
}
],
"payable": true,
"stateMutability": "payable",
"type": "function"
},
{
"constant": false,
"inputs": [
{
"components": [
{
"internalType": "address",
"name": "pool",
"type": "address"
},
{
"internalType": "address",
"name": "tokenIn",
"type": "address"
},
{
"internalType": "address",
"name": "tokenOut",
"type": "address"
},
{
"internalType": "uint256",
"name": "swapAmount",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "limitReturnAmount",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "maxPrice",
"type": "uint256"
}
],
"internalType": "struct ExchangeProxy.Swap[][]",
"name": "swapSequences",
"type": "tuple[][]"
},
{
"internalType": "contract TokenInterface",
"name": "tokenIn",
"type": "address"
},
{
"internalType": "contract TokenInterface",
"name": "tokenOut",
"type": "address"
},
{
"internalType": "uint256",
"name": "maxTotalAmountIn",
"type": "uint256"
}
],
"name": "multihopBatchSwapExactOut",
"outputs": [
{
"internalType": "uint256",
"name": "totalAmountIn",
"type": "uint256"
}
],
"payable": true,
"stateMutability": "payable",
"type": "function"
},
{
"constant": true,
"inputs": [],
"name": "owner",
"outputs": [
{
"internalType": "address",
"name": "",
"type": "address"
}
],
"payable": false,
"stateMutability": "view",
"type": "function"
},
{
"constant": false,
"inputs": [],
"name": "renounceOwnership",
"outputs": [],
"payable": false,
"stateMutability": "nonpayable",
"type": "function"
},
{
"constant": false,
"inputs": [
{
"internalType": "address",
"name": "_registry",
"type": "address"
}
],
"name": "setRegistry",
"outputs": [],
"payable": false,
"stateMutability": "nonpayable",
"type": "function"
},
{
"constant": false,
"inputs": [
{
"internalType": "contract TokenInterface",
"name": "tokenIn",
"type": "address"
},
{
"internalType": "contract TokenInterface",
"name": "tokenOut",
"type": "address"
},
{
"internalType": "uint256",
"name": "totalAmountIn",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "minTotalAmountOut",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "nPools",
"type": "uint256"
}
],
"name": "smartSwapExactIn",
"outputs": [
{
"internalType": "uint256",
"name": "totalAmountOut",
"type": "uint256"
}
],
"payable": true,
"stateMutability": "payable",
"type": "function"
},
{
"constant": false,
"inputs": [
{
"internalType": "contract TokenInterface",
"name": "tokenIn",
"type": "address"
},
{
"internalType": "contract TokenInterface",
"name": "tokenOut",
"type": "address"
},
{
"internalType": "uint256",
"name": "totalAmountOut",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "maxTotalAmountIn",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "nPools",
"type": "uint256"
}
],
"name": "smartSwapExactOut",
"outputs": [
{
"internalType": "uint256",
"name": "totalAmountIn",
"type": "uint256"
}
],
"payable": true,
"stateMutability": "payable",
"type": "function"
},
{
"constant": false,
"inputs": [
{
"internalType": "address",
"name": "newOwner",
"type": "address"
}
],
"name": "transferOwnership",
"outputs": [],
"payable": false,
"stateMutability": "nonpayable",
"type": "function"
},
{
"constant": true,
"inputs": [
{
"internalType": "address",
"name": "tokenIn",
"type": "address"
},
{
"internalType": "address",
"name": "tokenOut",
"type": "address"
},
{
"internalType": "uint256",
"name": "swapAmount",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "nPools",
"type": "uint256"
}
],
"name": "viewSplitExactIn",
"outputs": [
{
"components": [
{
"internalType": "address",
"name": "pool",
"type": "address"
},
{
"internalType": "address",
"name": "tokenIn",
"type": "address"
},
{
"internalType": "address",
"name": "tokenOut",
"type": "address"
},
{
"internalType": "uint256",
"name": "swapAmount",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "limitReturnAmount",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "maxPrice",
"type": "uint256"
}
],
"internalType": "struct ExchangeProxy.Swap[]",
"name": "swaps",
"type": "tuple[]"
},
{
"internalType": "uint256",
"name": "totalOutput",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "view",
"type": "function"
},
{
"constant": true,
"inputs": [
{
"internalType": "address",
"name": "tokenIn",
"type": "address"
},
{
"internalType": "address",
"name": "tokenOut",
"type": "address"
},
{
"internalType": "uint256",
"name": "swapAmount",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "nPools",
"type": "uint256"
}
],
"name": "viewSplitExactOut",
"outputs": [
{
"components": [
{
"internalType": "address",
"name": "pool",
"type": "address"
},
{
"internalType": "address",
"name": "tokenIn",
"type": "address"
},
{
"internalType": "address",
"name": "tokenOut",
"type": "address"
},
{
"internalType": "uint256",
"name": "swapAmount",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "limitReturnAmount",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "maxPrice",
"type": "uint256"
}
],
"internalType": "struct ExchangeProxy.Swap[]",
"name": "swaps",
"type": "tuple[]"
},
{
"internalType": "uint256",
"name": "totalOutput",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "view",
"type": "function"
}
]
}
*/
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