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evm.html
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<!DOCTYPE html>
<html>
<head>
<title>EVM Utility Tools</title>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/uikit/3.21.7/css/uikit.min.css" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/uikit/3.21.7/js/uikit.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/uikit/3.21.7/js/uikit-icons.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/web3/4.10.0/web3.min.js"></script>
</head>
<body>
<a href="https://github.com/quanttb/blockchain-utility-tools" class="github-corner" aria-label="View source on GitHub"><svg width="80" height="80" viewBox="0 0 250 250" style="fill:#151513; color:#fff; position: absolute; top: 0; border: 0; right: 0;" aria-hidden="true"><path d="M0,0 L115,115 L130,115 L142,142 L250,250 L250,0 Z"></path><path d="M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,101.9 134.4,103.2" fill="currentColor" style="transform-origin: 130px 106px;" class="octo-arm"></path><path d="M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z" fill="currentColor" class="octo-body"></path></svg></a><style>.github-corner:hover .octo-arm{animation:octocat-wave 560ms ease-in-out}@keyframes octocat-wave{0%,100%{transform:rotate(0)}20%,60%{transform:rotate(-25deg)}40%,80%{transform:rotate(10deg)}}@media (max-width:500px){.github-corner:hover .octo-arm{animation:none}.github-corner .octo-arm{animation:octocat-wave 560ms ease-in-out}}</style>
<h1 class="uk-heading-line uk-text-center uk-margin-top">EVM Utility Tools</h1>
<div class="uk-margin-small-left uk-margin-small-right">
<div uk-grid>
<div class="uk-width-expand@m">
<input id="rpc" class="uk-input" type="text" placeholder="RPC">
</div>
<div>
<button class="uk-button uk-button-default">Choose</button>
<div class="uk-dropdown-small" uk-dropdown>
<ul class="uk-nav uk-dropdown-nav">
<li><a href="#" onclick="setRpc('BSC')">Binance Smart Chain</a></li>
<li><a href="#" onclick="setRpc('ETH')">Ethereum</a></li>
<li><a href="#" onclick="setRpc('POLYGON')">Polygon</a></li>
<li><a href="#" onclick="setRpc('AVAX')">Avalanche</a></li>
<li class="uk-nav-divider"></li>
<li><a href="#" onclick="setRpc('BSC_TESTNET')">BSC Testnet</a></li>
<li><a href="#" onclick="setRpc('SEPOLIA')">Sepolia</a></li>
<li><a href="#" onclick="setRpc('AMOY')">Amoy</a></li>
<li><a href="#" onclick="setRpc('FUJI')">Fuji</a></li>
</ul>
</div>
</div>
<div>
<button onclick="connectToMetamask()" class="uk-button uk-button-primary" disabled>Connect to Metamask</button>
</div>
</div>
<ul class="uk-flex-left" uk-tab>
<li><a href="#">Get Transaction</a></li>
<li class="uk-active"><a href="#">Generate new Account</a></li>
<li><a href="#">Check RPC</a></li>
<li><a href="#">Interact with Smart Contract</a></li>
<li><a href="#">Decode Input Data</a></li>
<li><a href="#">Use web3.js</a></li>
</ul>
<div class="uk-switcher uk-margin">
<div>
<input id="hash-1" class="uk-input uk-margin-small-top" type="text" placeholder="Hash">
<button onclick="getTransaction()" class="uk-button uk-button-primary uk-margin-top">Get Transaction</button>
<button onclick="getTransactionReceipt()" class="uk-button uk-button-primary uk-margin-top">Get Transaction Receipt</button>
<textarea id="result-1" class="uk-textarea uk-margin-top" rows="20" disabled></textarea>
</div>
<div>
<button onclick="generateNewAccount()" class="uk-button uk-button-primary uk-margin-top">Generate new Account</button>
<button onclick="generateMnemonic()" class="uk-button uk-button-primary uk-margin-top">Generate Mnemonic</button>
<textarea id="result-2" class="uk-textarea uk-margin-top" rows="20" disabled></textarea>
</div>
<div>
<button onclick="getLatestBlock()" class="uk-button uk-button-primary uk-margin-top">Get Latest Block</button>
<button onclick="getChainId()" class="uk-button uk-button-primary uk-margin-top">Get Chain ID</button>
<textarea id="result-3" class="uk-textarea uk-margin-top" rows="20" disabled></textarea>
</div>
<div>
<input id="contract-4" class="uk-input uk-margin-small-top" type="text" placeholder="Contract Address">
<textarea id="abi-4" class="uk-textarea uk-margin-top" rows="5" placeholder="ABI"></textarea>
<button onclick="generateFunctions()" class="uk-button uk-button-primary uk-margin-top">Generate Functions</button>
<div class="uk-margin-top">
<ul id="read-buttons-4" uk-accordion></ul>
<ul id="write-buttons-4" uk-accordion></ul>
</div>
<textarea id="result-4" class="uk-textarea" rows="20" disabled></textarea>
</div>
<div>
<input id="input-5" class="uk-input uk-margin-small-top" type="text" placeholder="Input Data">
<textarea id="abi-5" class="uk-textarea uk-margin-top" rows="5" placeholder="ABI"></textarea>
<button onclick="decode()" class="uk-button uk-button-primary uk-margin-top">Decode</button>
<textarea id="result-5" class="uk-textarea uk-margin-top" rows="20" disabled></textarea>
</div>
<div>
<input id="function-6" class="uk-input uk-margin-small-top" type="text" placeholder="Function">
<button onclick="execute()" class="uk-button uk-button-primary uk-margin-top">Execute</button>
<textarea id="result-6" class="uk-textarea uk-margin-top" rows="20" disabled></textarea>
</div>
</div>
</div>
<script src="js/bip39.js"></script>
<script src="js/hdkey.js"></script>
<script>
BigInt.prototype.toJSON = function() { return this.toString() };
async function setRpc(network) {
let rpc;
switch (network) {
case 'BSC':
rpc = 'https://bsc-dataseed.binance.org/';
break;
case 'ETH':
rpc = 'https://rpc.ankr.com/eth';
UIkit.notification({message: "<span uk-icon=\'icon: warning\'></span> Endpoint's rate limit is capped on Public.", status: 'warning'});
break;
case 'POLYGON':
rpc = 'https://polygon-rpc.com';
break;
case 'AVAX':
rpc = 'https://api.avax.network/ext/bc/C/rpc';
break;
case 'BSC_TESTNET':
rpc = 'https://data-seed-prebsc-1-s1.binance.org:8545/';
break;
case 'SEPOLIA':
rpc = 'https://rpc.ankr.com/eth_sepolia';
UIkit.notification({message: "<span uk-icon=\'icon: warning\'></span> Endpoint's rate limit is capped on Public.", status: 'warning'});
break;
case 'AMOY':
rpc = 'https://rpc-amoy.polygon.technology/';
break;
case 'FUJI':
rpc = 'https://43113.rpc.thirdweb.com';
break;
}
document.getElementById('rpc').value = rpc;
}
async function connectToMetamask() {}
async function getTransaction() {
try {
const web3 = new Web3(document.getElementById('rpc').value);
const tx = await web3.eth.getTransaction(document.getElementById('hash-1').value);
document.getElementById('result-1').value = JSON.stringify(tx, null, 5);
UIkit.notification({message: '<span uk-icon=\'icon: check\'></span> success', status: 'success'});
} catch (err) {
document.getElementById('result-1').value = err.message;
UIkit.notification({message: '<span uk-icon=\'icon: close\'></span> error', status: 'danger'});
}
}
async function getTransactionReceipt() {
try {
const web3 = new Web3(document.getElementById('rpc').value);
const tx = await web3.eth.getTransactionReceipt(document.getElementById('hash-1').value);
document.getElementById('result-1').value = JSON.stringify(tx, null, 5);
UIkit.notification({message: '<span uk-icon=\'icon: check\'></span> success', status: 'success'});
} catch (err) {
document.getElementById('result-1').value = err.message;
UIkit.notification({message: '<span uk-icon=\'icon: close\'></span> error', status: 'danger'});
}
}
async function generateNewAccount() {
try {
const web3 = new Web3();
const account = await web3.eth.accounts.create();
document.getElementById('result-2').value = JSON.stringify(account, null, 5);
UIkit.notification({message: '<span uk-icon=\'icon: check\'></span> success', status: 'success'});
} catch (err) {
document.getElementById('result-2').value = err.message;
UIkit.notification({message: '<span uk-icon=\'icon: close\'></span> error', status: 'danger'});
}
}
async function generateMnemonic(numberOfAccounts = 10) {
try {
const web3 = new Web3();
const mnemonic = bip39.generateMnemonic();
const seed = bip39.mnemonicToSeedSync(mnemonic);
const root = HDKey.fromMasterSeed(seed);
const accounts = [];
for (let i = 0; i < numberOfAccounts; i++) {
const path = `m/44'/60'/0'/0/${i}`;
const wallet = root.derive(path);
const privateKey = `0x${wallet.privateKey.toString('hex')}`;
const account = web3.eth.accounts.privateKeyToAccount(privateKey);
accounts.push({ address: account.address, privateKey });
}
const result = { mnemonic, accounts };
document.getElementById('result-2').value = JSON.stringify(result, null, 5);
UIkit.notification({message: '<span uk-icon=\'icon: check\'></span> success', status: 'success'});
} catch (err) {
document.getElementById('result-2').value = err.message;
UIkit.notification({message: '<span uk-icon=\'icon: close\'></span> error', status: 'danger'});
}
}
async function getLatestBlock() {
try {
const web3 = new Web3(document.getElementById('rpc').value);
const block = await web3.eth.getBlock('latest');
document.getElementById('result-3').value = JSON.stringify(block, null, 5);
UIkit.notification({message: '<span uk-icon=\'icon: check\'></span> success', status: 'success'});
} catch (err) {
document.getElementById('result-3').value = err.message;
UIkit.notification({message: '<span uk-icon=\'icon: close\'></span> error', status: 'danger'});
}
}
async function getChainId() {
try {
const web3 = new Web3(document.getElementById('rpc').value);
const chainId = await web3.eth.getChainId();
document.getElementById('result-3').value = chainId;
UIkit.notification({message: '<span uk-icon=\'icon: check\'></span> success', status: 'success'});
} catch (err) {
document.getElementById('result-3').value = err.message;
UIkit.notification({message: '<span uk-icon=\'icon: close\'></span> error', status: 'danger'});
}
}
async function generateFunctions() {
try {
const web3 = new Web3(document.getElementById('rpc').value);
const functions = JSON.parse(document.getElementById('abi-4').value);
const readFunctions = [];
const writeFunctions = [];
functions.forEach(f => {
if (f.type === 'function') {
if (f.stateMutability === 'view' || f.stateMutability === 'pure') {
if (f.inputs.length) {
const inputs = [];
const args = [];
const types = [];
f.inputs.forEach(i => {
inputs.push(`<input id="${f.name}-${i.name}" class="uk-input uk-margin-small-bottom" type="text" placeholder="${i.name} (${i.type})">`);
args.push(i.name);
types.push(i.type);
});
readFunctions.push(`
<li>
<a class="uk-accordion-title uk-text-success" href>${f.name}(${types.join()})</a>
<div class="uk-accordion-content">
${inputs.join('')}
<button onclick="read('${f.name}',['${args.join("','")}'])" class="uk-button uk-button-default">Query</button><br/>
</div>
</li>
`);
} else {
readFunctions.push(`
<li>
<a class="uk-accordion-title uk-text-success" href>${f.name}</a>
<div class="uk-accordion-content">
<button onclick="read('${f.name}',[])" class="uk-button uk-button-default">Query</button><br/>
</div>
</li>
`);
}
} else {
if (f.inputs.length) {
const inputs = [`<input id="${f.name}-sender" class="uk-input uk-margin-small-bottom" type="text" placeholder="sender">`];
const args = [];
const types = [];
f.inputs.forEach(i => {
inputs.push(`<input id="${f.name}-${i.name}" class="uk-input uk-margin-small-bottom" type="text" placeholder="${i.name} (${i.type})">`);
args.push(i.name);
types.push(i.type);
});
writeFunctions.push(`
<li>
<a class="uk-accordion-title uk-text-warning" href>${f.name}(${types.join()})</a>
<div class="uk-accordion-content">
${inputs.join('')}
<button onclick="encode('${f.name}',['${args.join("','")}'])" class="uk-button uk-button-default">ENCODE</button>
<button onclick="simulate('${f.name}',['${args.join("','")}'])" class="uk-button uk-button-default">Simulate</button>
<button onclick="write('${f.name}',['${args.join("','")}'])" class="uk-button uk-button-default" disabled>Write</button><br/>
</div>
</li>
`);
} else {
writeFunctions.push(`
<li>
<a class="uk-accordion-title uk-text-warning" href>${f.name}</a>
<div class="uk-accordion-content">
<input id="${f.name}-sender" class="uk-input uk-margin-small-bottom" type="text" placeholder="sender">
<button onclick="encode('${f.name}',[])" class="uk-button uk-button-default">Encode</button>
<button onclick="simulate('${f.name}',[])" class="uk-button uk-button-default">Simulate</button>
<button onclick="write('${f.name}',[])" class="uk-button uk-button-default" disabled>Write</button><br/>
</div>
</li>
`);
}
}
}
});
document.getElementById('read-buttons-4').innerHTML = readFunctions.join('');
document.getElementById('write-buttons-4').innerHTML = writeFunctions.join('');
} catch (err) {
document.getElementById('result-4').value = err.message;
UIkit.notification({message: '<span uk-icon=\'icon: close\'></span> error', status: 'danger'});
}
}
async function read(functionName, args) {
try {
const web3 = new Web3(document.getElementById('rpc').value);
const contract = new web3.eth.Contract(
JSON.parse(document.getElementById('abi-4').value),
document.getElementById('contract-4').value
);
let result;
if (args.length) {
args = args.map(arg => document.getElementById(`${functionName}-${arg}`).value);
result = await contract.methods[functionName](...args).call();
} else {
result = await contract.methods[functionName]().call();
}
document.getElementById('result-4').value = JSON.stringify(result, null, 5);
UIkit.scroll(`#result-4`).scrollTo('#result-4');
UIkit.notification({message: '<span uk-icon=\'icon: check\'></span> success', status: 'success'});
} catch (err) {
document.getElementById('result-4').value = err.message;
UIkit.notification({message: '<span uk-icon=\'icon: close\'></span> error', status: 'danger'});
}
}
async function encode(functionName, args) {
try {
const web3 = new Web3(document.getElementById('rpc').value);
const contract = new web3.eth.Contract(
JSON.parse(document.getElementById('abi-4').value),
document.getElementById('contract-4').value
);
let result;
if (args.length) {
args = args.map(arg => document.getElementById(`${functionName}-${arg}`).value);
result = await contract.methods[functionName](...args).encodeABI();
} else {
result = await contract.methods[functionName]().encodeABI();
}
document.getElementById('result-4').value = result;
UIkit.scroll(`#result-4`).scrollTo('#result-4');
UIkit.notification({message: '<span uk-icon=\'icon: check\'></span> success', status: 'success'});
} catch (err) {
document.getElementById('result-4').value = err.message;
UIkit.notification({message: '<span uk-icon=\'icon: close\'></span> error', status: 'danger'});
}
}
async function simulate(functionName, args) {
try {
const web3 = new Web3(document.getElementById('rpc').value);
const contract = new web3.eth.Contract(
JSON.parse(document.getElementById('abi-4').value),
document.getElementById('contract-4').value
);
let method;
if (args.length) {
args = args.map(arg => document.getElementById(`${functionName}-${arg}`).value);
method = await contract.methods[functionName](...args);
} else {
method = await contract.methods[functionName]();
}
try {
await web3.eth.call({
from: document.getElementById(`${functionName}-sender`).value,
to: document.getElementById('contract-4').value,
data: method.encodeABI(),
});
document.getElementById('result-4').value = 'OK';
UIkit.scroll(`#result-4`).scrollTo('#result-4');
UIkit.notification({message: '<span uk-icon=\'icon: check\'></span> success', status: 'success'});
} catch (err) {
if (err.data) {
const result = err.data.startsWith('0x') ? err.data : `0x${err.data}`;
const reason = web3.utils.toAscii(`0x${result.substr(138)}`);
document.getElementById('result-4').value = `Revert: ${reason}`;
} else if (err?.cause.message) {
document.getElementById('result-4').value = `Revert: ${err.cause.message}`;
} else {
document.getElementById('result-4').value = 'Revert';
console.log(err);
}
UIkit.scroll(`#result-4`).scrollTo('#result-4');
UIkit.notification({message: '<span uk-icon=\'icon: close\'></span> revert', status: 'danger'});
}
} catch (err) {
document.getElementById('result-4').value = err.message;
UIkit.notification({message: '<span uk-icon=\'icon: close\'></span> error', status: 'danger'});
}
}
async function decode() {
try {
const web3 = new Web3();
const functions = JSON.parse(document.getElementById('abi-4').value);
const inputData = document.getElementById('input-5').value;
let found;
functions.forEach(f => {
if (f.type === 'function' && web3.eth.abi.encodeFunctionSignature(f) === inputData.substring(0, 10)) {
found = f;
}
});
if (found) {
const result = web3.eth.abi.decodeParameters(found.inputs, `0x${inputData.slice(10 - inputData.length)}`);
document.getElementById('result-5').value = JSON.stringify(result, null, 5);
UIkit.notification({message: '<span uk-icon=\'icon: check\'></span> success', status: 'success'});
} else {
document.getElementById('result-5').value = 'No matching function found';
UIkit.notification({message: '<span uk-icon=\'icon: close\'></span> error', status: 'danger'});
}
} catch (err) {
document.getElementById('result-5').value = err.message;
UIkit.notification({message: '<span uk-icon=\'icon: close\'></span> error', status: 'danger'});
}
}
async function execute() {
try {
const web3 = new Web3(document.getElementById('rpc').value);
const result = await eval(document.getElementById('function-6').value);
document.getElementById('result-6').value = JSON.stringify(result, null, 5);
UIkit.notification({message: '<span uk-icon=\'icon: check\'></span> success', status: 'success'});
} catch (err) {
document.getElementById('result-6').value = err.message;
UIkit.notification({message: '<span uk-icon=\'icon: close\'></span> error', status: 'danger'});
}
}
</script>
</body>
</html>