How to Connect to Solana In JavaScript

Using the Web3.js Library

Connecting to the Solana network from within a JavaScript project is simple: use the web3.js library to do it in a few lines.

The whole process can be done, from start to finish, within a few minutes.

Setting Up The Project

Create a directory, or a folder for your project, if you don't have one already.

mkdir project

We are assuming here that you want to connect to Solana from within an npm project.

JavaScript Code

Enter the project's directory or folder and run the command npm init.

npm init

Now save the library you'll need to access the Solana network: solana/web3js, using the command npm install.

npm install --save @solana/web3.js

Now create a script inside your project folder. It can have any name.

Inside the script, require the library, and then print the output of the variable.

const solanaWeb3 = require('@solana/web3.js');

console.log(solanaWeb3);

Connecting to the Solana Network

You can run your script with the command node scriptname, replacing scriptname with the name of your script.

My script was named sol.js, so I ran it with this command, from outside my project directory:

node project/sol.js

Solana Network Output

You should now connect to the Solana network and see its output.

While the page of output will extend past a single screen, a few sample lines are shown below.

Account: [class Account],

Authorized: [class Authorized],

BLOCKHASH_CACHE_TIMEOUT_MS: 30000,

You have now established a connection to the Solana network.

For more information, see the Solana web3.js library's documentation:

https://solana-labs.github.io/solana-web3.js/

Feel free to adapt and reuse this code in your own projects.