• Ankr Build
• Supported Chains
• Ethereum
• How to
• Make Requests

In this section, we'll create a simple script using Ethereum Mainnet RPC and Web3.js library to make requests.

1. Create a new project directory

 
mkdir eth-requests && cd eth-requests
 

2. Install web3.js library

• Libraries simplify connecting an application to the Ethereum blockchain. You need to connect to Ethereum in order to read blockchain data and/or send transactions to the network.*

 
npm install web3
 

3. Create a landing page for your file and open it in your preferred code editor.

 
touch index.js 
 

4. Now add the script below to index.js. The script does the following:

• Creates a web3 instance,
• Sets the provider to an Ankr RPC
• Makes a request to get the latest Block Number.

const Web3 = require('web3');
const web3 = new Web3("https://rpc.ankr.com/eth"); // For Premium endpoints append API key to url "https://rpc.ankr.com/eth/APIKEY"
web3.eth.getBlockNumber()
.then(console.log);

5. Run the script in your code editor or in terminal/command-line.

You should see the latest Block Number as below!!!

node index.js
14679276