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Update simple-send.ts #31

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Update simple-send.ts #31

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98 changes: 55 additions & 43 deletions scripts/simple-send.ts
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Original file line number Diff line number Diff line change
@@ -1,65 +1,77 @@
#!/usr/bin/env -S node --require ts-node/register

// Import necessary modules from ethers
import {providers, Wallet, utils, BigNumber} from 'ethers';
const {JsonRpcProvider} = providers;

const cfg = config()
// Function to read configuration from environment variables
function config() {
// Check and throw errors if required environment variables are not set
if (!process.env.PRIVATE_KEY)
throw new Error('Must pass PRIVATE_KEY');
if (!process.env.HTTP_ENDPOINT)
throw new Error('Must pass HTTP_ENDPOINT');
if (!process.env.TRANSACTION_TO)
throw new Error('Must pass TRANSACTION_TO');
// Return configuration object
return {
privateKey: process.env.PRIVATE_KEY,
httpEndpoint: process.env.HTTP_ENDPOINT,
transactionTo: process.env.TRANSACTION_TO,
gasLimit: process.env.GAS_LIMIT,
};
}

// Main function to execute the script
(async () => {
const cfg = config(); // Read configuration

const provider = new JsonRpcProvider(cfg.httpEndpoint)
const wallet = new Wallet(cfg.privateKey).connect(provider)
// Initialize provider and wallet
const provider = new JsonRpcProvider(cfg.httpEndpoint);
const wallet = new Wallet(cfg.privateKey).connect(provider);

;(async () => {
const address = await wallet.getAddress()
console.log(`Sending from ${address}`)
// Fetch and log wallet address
const address = await wallet.getAddress();
console.log(`Sending from ${address}`);

const balance = await wallet.getBalance()
console.log(`Balance: ${utils.formatEther(balance.toString())}`)
// Fetch and log wallet balance
const balance = await wallet.getBalance();
console.log(`Balance: ${utils.formatEther(balance.toString())}`);

const gasPrice = await wallet.getGasPrice()
// Fetch and log gas price
const gasPrice = await wallet.getGasPrice();

let gasLimit
if (cfg.gasLimit) {
gasLimit = BigNumber.from(cfg.gasLimit)
} else {
// Calculate gas limit
let gasLimit;
if (cfg.gasLimit) {
gasLimit = BigNumber.from(cfg.gasLimit);
} else {
gasLimit = await wallet.estimateGas({
to: cfg.transactionTo,
gasPrice,
})
}
});
}

console.log(`Using Gas Price: ${gasPrice.toString()}`)
console.log(`Using Gas Limit: ${gasLimit.toString()}`)
console.log(`Using Gas Price: ${gasPrice.toString()}`);
console.log(`Using Gas Limit: ${gasLimit.toString()}`);

const value = balance.sub(gasPrice.mul(gasLimit))
console.log(`Sweeping balance ${utils.formatEther(value.toString())}`)
console.log(`Sending to ${cfg.transactionTo}`)
// Calculate value to be sent
const value = balance.sub(gasPrice.mul(gasLimit));
console.log(`Sweeping balance ${utils.formatEther(value.toString())}`);
console.log(`Sending to ${cfg.transactionTo}`);

const tx = await wallet.sendTransaction({
// Send transaction
const tx = await wallet.sendTransaction({
to: cfg.transactionTo,
value,
gasPrice,
gasLimit,
})
});

console.log('Waiting for receipt')
const receipt = await tx.wait()
console.log(receipt)
console.log('Waiting for receipt');
const receipt = await tx.wait();
console.log(receipt);
})().catch(err => {
console.log(err);
process.exit(1);
})

function config() {
if (!process.env.PRIVATE_KEY)
throw new Error('Must pass PRIVATE_KEY')
if (!process.env.HTTP_ENDPOINT)
throw new Error('Must pass HTTP_ENDPOINT')
if (!process.env.TRANSACTION_TO)
throw new Error('Must pass TRANSACTION_TO')
return {
privateKey: process.env.PRIVATE_KEY,
httpEndpoint: process.env.HTTP_ENDPOINT,
transactionTo: process.env.TRANSACTION_TO,
gasLimit: process.env.GAS_LIMIT,
}
}
console.log(err);
process.exit(1);
});