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Get Started

To use Jupiter and interact with the Solana network, you need to install the necessary libraries and set up a connection to the network via an RPC endpoint.

about the guide

In this guide, we'll be using the most used library, web3.js to get you started. Do note that there are other libraries using Rust instead of Javascript.

1. Install required libraries​

Running this example requires a minimum of NodeJS 16. In your command line terminal, install the libraries.

npm i @solana/web3.js@1
npm i @
npm i cross-fetch
npm i @coral-xyz/anchor
npm i bs58

2. Import from libraries​

Next, create a new Javascript/Typescript file and import these interfaces and functions.

import { Connection, Keypair, VersionedTransaction } from '@solana/web3.js';
import { Wallet } from '@coral-xyz/anchor';
import bs58 from 'bs58';
import fetch from 'cross-fetch';

3. Set up Connection​

Solana provides a default RPC endpoint to get started and in the example code, we will be using that. However, as your application grows, we recommend you to always use your own or provision a 3rd party provider’s RPC endpoint such as Helius or Triton.

const connection = new Connection('https://api.mainnet-beta.solana.com');

4. Set up your Wallet​

You can paste in your private key for testing purposes but this is not recommended for production applications.

If you want to store your private key in the project directly, you can do it via a .env file.

// index.js
import dotenv from 'dotenv';

const wallet = new Wallet(Keypair.fromSecretKey(bs58.decode(process.env.PRIVATE_KEY || '')));

console.log(wallet.publicKey.toBase58());
// .env
PRIVATE_KEY=""

If you have created a wallet via Solana CLI and your private key is stored outside of your project, you can do it this way instead.

import fs from 'fs';

const privateKeyArray = JSON.parse(fs.readFileSync('/Users/user/.config/solana/id.json', 'utf8').trim());

const wallet = new Wallet(Keypair.fromSecretKey(new Uint8Array(privateKeyArray)));

console.log(wallet.publicKey.toBase58());

Now, you are all set up and ready to use one of our product’s APIs and send a transaction to the Solana network!