- Start and End Block: Adjust the
startblock and endblock parameters to limit the range of blocks you want to query. - Sort: Set the
sort parameter to asc (ascending) or desc (descending) to control the order of the transactions. - Token Transfers for All Tokens: You can modify the API call to query all token transfers for an address, not just a specific token contract, by omitting the
contractaddress parameter.
In this tutorial, you learned how to use Ethers.js to query ERC-20 token balances and how to leverage the Etherscan API to retrieve token transaction histories. These are essential techniques for building decentralized applications, wallets, or blockchain explorers that interact with ERC-20 tokens on the Ethereum network.