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Update bscOperator.js

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This commit is contained in:
SaketAnand 2024-09-09 12:26:20 +05:30
parent 92f42cfabc
commit 1568e22525
1 changed files with 87 additions and 46 deletions
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125
scripts/bscOperator.js
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@ -1,3 +1,4 @@
(function (EXPORTS) { //bscOperator v1.0.2
/* ETH Crypto and API Operator */
if (!window.ethers)
@ -248,6 +249,8 @@
rpc: 'https://bsc-dataseed.binance.org/',
explorer: 'https://bscscan.com'
};
if (window.ethereum) {
return new ethers.providers.Web3Provider(window.ethereum);
} else {
@ -271,7 +274,8 @@
})
})
}
// connectToMetaMask();
const getBalance = bscOperator.getBalance = async (address) => {
try {
if (!address || !isValidAddress(address))
@ -286,7 +290,15 @@
return error;
}
}
const getTokenBalance = bscOperator.getTokenBalance = async (address, token, { contractAddress } = {}) => {
const getTokenBalance = bscOperator.getTokenBalance = async (address, token, { contractAddress } = {}) => {
try {
if (!address) {
throw new Error("Address not specified");
@ -303,26 +315,48 @@
let balance = await contract.balanceOf(address);
// Assuming 18 decimals for most tokens like USDT and USDC
// const decimals = 0.00;
const decimals = 18;
const formattedDecimals = decimals.toFixed(1); // This will convert 18 to "18.00"
console.log(formattedDecimals); // Outputs: "18.0"
// Assuming 18 decimals for most tokens like USDT and USDC*****************************************************
// const decimals = 0.00;
const decimals = 18;
const formattedDecimals = decimals.toFixed(1); // This will convert 18 to "18.00"
console.log(formattedDecimals); // Outputs: "18.0"
balance = parseFloat(ethers.utils.formatUnits(balance, decimals));
balance = parseFloat(ethers.utils.formatUnits(balance, decimals));
// Format the balance to 2 decimal places for display
balance = balance.toFixed(2);
return balance;
}
// Format the balance to 2 decimal places for display
balance = balance.toFixed(2);
return balance;
}
catch (e) {
console.error("Error getting token balance:", e.message);
throw new Error("Failed to get token balance");
// console.error("Error getting token balance:", e.message);
// throw new Error("Failed to get token balance");
}
}
// Example usage:
// Ensure MetaMask is connected and BSC network is selected in MetaMask
const address = '0xYourAddressHere'; // Replace with your actual address
(async () => {
try {
const usdtBalance = await getTokenBalance(address, 'USDT');
const bnbBalance = await getTokenBalance(address, 'BNB');
console.log('USDT Balance:', usdtBalance);
console.log('BNB Balance:', bnbBalance);
} catch (error) {
console.error('Error fetching balances:', error.message);
}
})();
const estimateGas = bscOperator.estimateGas = async ({ privateKey, receiver, amount }) => {
try {
const provider = getProvider();
@ -341,33 +375,17 @@
try {
const provider = getProvider();
const signer = new ethers.Wallet(privateKey, provider);
// Estimate gas limit
const gasLimit = await provider.estimateGas({
to: receiver,
value: ethers.utils.parseUnits(amount.toString(), 'ether'),
});
const gasPrice = await provider.getGasPrice();
const maxPriorityFeePerGas = ethers.utils.parseUnits("2", "gwei");
const maxFeePerGas = gasPrice.add(maxPriorityFeePerGas);
// Ensure maxPriorityFeePerGas is less than or equal to maxFeePerGas
if (maxPriorityFeePerGas.gt(maxFeePerGas)) {
throw new Error("Max priority fee per gas cannot be higher than max fee per gas");
}
const limit = await estimateGas({ privateKey, receiver, amount })
// Creating and sending the transaction object
return await signer.sendTransaction({
return signer.sendTransaction({
to: receiver,
value: ethers.utils.parseUnits(amount.toString(), 'ether'),
gasLimit: gasLimit,
maxPriorityFeePerGas: maxPriorityFeePerGas,
maxFeePerGas: maxFeePerGas,
nonce: await signer.getTransactionCount(),
});
value: ethers.utils.parseUnits(amount, "ether"),
gasLimit: limit,
nonce: signer.getTransactionCount(),
maxPriorityFeePerGas: ethers.utils.parseUnits("2", "gwei"),
})
} catch (e) {
throw new Error(e.message);
throw new Error(e)
}
};
@ -375,12 +393,35 @@
const sendToken = bscOperator.sendToken = async ({ token, privateKey, amount, receiver, contractAddress }) => {
// Create a wallet using the private key
const wallet = new ethers.Wallet(privateKey, getProvider());
// Contract interface
const tokenContract = new ethers.Contract(CONTRACT_ADDRESSES[token] || contractAddress, BEP20ABI, wallet);
// Convert the amount to the smallest unit of USDC (wei)
const amountWei = ethers.utils.parseUnits(amount.toString(), 6); // Assuming 6 decimals for USDC
// Fetch the correct number of decimals for the token
const decimals = await tokenContract.decimals();
// Convert the amount to the smallest unit of the token
const amountWei = ethers.utils.parseUnits(amount.toString(), decimals);
// Estimate gas limit for the transaction
const gasLimit = await tokenContract.estimateGas.transfer(receiver, amountWei);
// Get the current gas price
const gasPrice = await wallet.provider.getGasPrice();
// Calculate the gas cost
const gasCost = gasPrice.mul(gasLimit);
console.log(`Gas cost: ${ethers.utils.formatEther(gasCost)} BNB`);
// Check if wallet has enough balance to cover gas fees
const balance = await wallet.getBalance();
if (balance.lt(gasCost)) {
throw new Error("Insufficient funds for gas fee");
}
// Call the transfer function on the USDC contract
return tokenContract.transfer(receiver, amountWei)
return tokenContract.transfer(receiver, amountWei, { gasLimit, gasPrice });
}
})('object' === typeof module ? module.exports : window.bscOperator = {});