Environment Setup

about the documentation

In the documentation, we are using the Solana web3.js library to set up connection, sign transactions, etc.

Useful Libraries

JavaScript Libraries

• @solana/web3.js
• @coral-xyz/anchor
• @solana/spl-token
• @jup-ag/referral-sdk
• bs58
• cross-fetch

Useful Scripts

Set up RPC Connection

note

Solana provides a default RPC endpoint. 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');

Set up Development Wallet

note

• 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.

To set up a development wallet via .env file, you can use the following script.

// index.js
import { Keypair } from '@solana/web3.js';
import { Wallet } from '@coral-xyz/anchor';
import dotenv from 'dotenv';
require('dotenv').config();

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

// .env
PRIVATE_KEY=""

To set up a development wallet via a wallet generated via Solana CLI, you can use the following script.

import { Keypair } from '@solana/web3.js';
import { Wallet } from '@coral-xyz/anchor';
import fs from 'fs';

const privateKeyArray = JSON.parse(fs.readFileSync('../.config/solana/id.json', 'utf8').trim());
const wallet = new Wallet(Keypair.fromSecretKey(new Uint8Array(privateKeyArray)));