Get an ERC20 token's balance

In this section we'll learn how to get the ERC20 balance for an account using ethers.

Check a particular token balance of an EVM address using ethers.js

const ethers = require('ethers');

// Replace these variables with your specific values
const walletAddress = '0xYourWalletAddress';
const tokenAddress = '0xTokenContractAddress';

// Ethereum JSON-RPC endpoint
const provider = new ethers.providers.JsonRpcProvider('https://moonbeam.unitedbloc.com');

// ERC-20 ABI (replace with the actual ABI of the token)
const erc20Abi = [
  // Standard ERC-20 functions
  'function balanceOf(address) view returns (uint)',
];

// Create a contract instance
const tokenContract = new ethers.Contract(tokenAddress, erc20Abi, provider);

// Get the balance of the specified wallet
async function getBalance() {
  try {
    const balance = await tokenContract.balanceOf(walletAddress);
    console.log(`Balance of ${walletAddress} is: ${ethers.utils.formatUnits(balance)}`);
  } catch (error) {
    console.error('Error:', error.message);
  }
}

// Call the function to get the balance
getBalance();