Blockchain Development Programming Tutorials, Guides & Best Practices

Once you’ve added the code, run the script:

node getTokenBalance.js

These endpoints give you the flexibility to retrieve detailed blockchain data and customize your applications accordingly.

In this tutorial, you learned how to interact with the Ethereum blockchain using the Etherscan API. You successfully queried Ethereum wallet balances, transaction details, and ERC-20 token balances. By using the Etherscan API, you can easily access blockchain data without needing to run your own Ethereum node.

By the end of this tutorial, you’ll be able to query the balance of any Ethereum wallet and display it in Ether units.

To follow along, you’ll need the following:

The Ethereum address "0x000000000000000000000000000000000000dead" is a special placeholder address, often referred to as a burn address. It is not used for transactions or wallet management, but for a specific function in the cryptocurrency ecosystem—burning tokens.

Burning tokens refers to the process of sending cryptocurrency tokens to an address from which they cannot be retrieved. Tokens sent to this address are effectively removed from circulation forever. The address ends with "dead," signaling its purpose of making tokens unreachable.

Step 2: Connect to the Solana Network

Create a new file called index.js and add the following code to connect to the Solana blockchain: