tron-tx-decoder-tronweb
v3.2.0
Published
Lightweight utility for decoding function parameters and function output from Tron blockchain transactions.
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Readme
tron-tx-decoder-tronweb
Demo: https://tron-decoder.github.io
Installation
npm i tron-tx-decoder-tronweb
Initialization
const TronTxDecoder = require('tron-tx-decoder-tronweb');
const Tronweb = require('tronweb');
const tronweb = new TronWeb({
network: 'shasta',
fullHost: 'https://api.shasta.trongrid.io',
apiUrl: 'https://shastapi.tronscan.org/api',
eventServer: 'https://api.shasta.trongrid.io',
privateKey: 'PRIVATE_HERE',
headers: { 'TRON-PRO-API-KEY': 'API KEY FROM trongrid.io' },
});
const decoder = new TronTxDecoder({ tronweb });
Decode Input:
Decode function input parameters by passing transaction id.
async function decodeTxInput(txId){
const decodedInput = await decoder.decodeInputById(txId);
return decodedInput;
}
decodeTxInput("0c739761b34a891b3bbecd528302de827736660d76c62dacf8d3a9ebe7dade08");
Output:
{
methodName: 'submitTheGame',
inputNames: [ '_betId', 'freshHouseSeed', 'rollResult', '_gameOutcome' ],
inputTypes: [ 'uint256', 'address', 'uint8', 'uint8' ],
decodedInput: {
'0': BigNumber { _hex: '0x265aa6' },
'1': '0x8F476d1155E9910A885Cae1c4396BDD392c3883E',
'2': 11,
'3': 1,
_length: 4
}
}
Decode Output:
Decode function outputs by passing transaction id.
async function decodeTxOutput(txId){
const decodedOutput = await decoder.decodeResultById(txId);
return decodedOutput;
}
decodeTxOutput("0c739761b34a891b3bbecd528302de827736660d76c62dacf8d3a9ebe7dade08");
Output:
{
methodName: 'submitTheGame',
outputNames: [ null, null ],
outputTypes: [ 'uint256', 'uint256' ],
decodedOutput: {
'0': BigNumber { _hex: '0x265aa6' },
'1': BigNumber { _hex: '0x0615ec20' },
_length: 2
}
}
Decode Revert Message (if any):
Decode function outputs by passing transaction id.
async function decodeRevertMessage(txId){
const decodedMessage = await decoder.decodeRevertMessage(txId);
return decodedMessage;
}
decodeRevertMessage("5d6db71f3316a2abdf7f08f97cd42880209ee7344816d404ce865a8679bdb7ae");
Output:
{
txStatus: 'REVERT',
revertMessage: 'Plot is not currently owned'
}
BigNumber
BigNumber can be converted to number using prototype .toNumber(). Which return a JavaScript number of the value.
Contributing
- Issues & Pull requests are welcome! Fork, branch, and submit PR.