Ethereum Wallet Utilities with ethers

ethers-app.js

const { ethers } = require("ethers");

// Function to create a random wallet
async function createRandomWallet() {
    const wallet = ethers.Wallet.createRandom();
    const address = wallet.address;
    const privateKey = wallet.privateKey;
    const mnemonic = wallet.mnemonic.phrase;

    console.log(`Address: ${address}`);
    console.log(`Private Key: ${privateKey}`);
    console.log(`Mnemonic: ${mnemonic}`);
}

// Function to log in to a wallet using a private key
function loginWallet(privateKey) {
    const wallet = new ethers.Wallet(privateKey);
    const address = wallet.address;

    console.log(`Address: ${address}`);
}

// Function to send a transaction
async function sendTransaction(privateKey, recipient, amount, rpcURL) {
    const provider = new ethers.JsonRpcProvider(rpcURL);
    const wallet = new ethers.Wallet(privateKey, provider);
    
    const tx = {
        to: recipient,
        value: ethers.parseEther(amount)
    };

    const transaction = await wallet.sendTransaction(tx);
    await transaction.wait();

    console.log(`Transaction hash: ${transaction.hash}`);
    console.log(`Transaction details: ${JSON.stringify(transaction)}`);
}

// Function to check the balance of an address
async function getBalance(address, rpcURL) {
    const provider = new ethers.JsonRpcProvider(rpcURL);
    const balance = await provider.getBalance(address);
    console.log(`Balance: ${ethers.formatEther(balance)} ETH`);
}

// Function to check the balance on the mainnet
async function getBalanceMainnet(address) {
    const provider = ethers.getDefaultProvider('mainnet');
    const balance = await provider.getBalance(address);
    console.log(`Balance: ${ethers.formatEther(balance)} ETH`);
}

// Example usage
const publicAddress = "0xE7A13A089b36C600EeB6Ef070C79216ACB450399";
const privateAddress = "0xe2725ced5b2174eb13e78b8a8991c53777809a11bd2fb2f4c1d084eef29ba5eb";
const mnemonic = "urge swarm bless endless kit smile action aspect play wonder collect glad";

// Create a new random wallet and show its details
createRandomWallet();

// Log in to a wallet using a private key and show the address
loginWallet(privateAddress);

// Send a transaction with the specified private key, recipient address, and amount
sendTransaction(privateAddress, "0x4cE41b3D7d4974eF2bfa15bb42D8c8E98bBa49ab", "0.1", "http://127.0.0.1:7545");

// Check and show the balance of the specified address on the local network (ganache)
getBalance(publicAddress, "http://127.0.0.1:7545");

// Check and show the balance of the specified address on the mainnet
getBalanceMainnet("0x882e747c5c2e0366d4fd6f9f95780467c6549732");