In this tutorial, you will learn how to use Ethers.js and the Etherscan API to query ERC-20 token balances and view token transaction history for a specific Ethereum address. ERC-20 tokens are a standard for fungible tokens on the Ethereum blockchain, and querying their balances and transactions is essential for building decentralized applications (dApps) like wallets, token explorers, and DeFi platforms.
By the end of this tutorial, you will be able to: