Using Web3.js v2 with Solana Wallet Adapter: A Step-by-Step Guide

Introduction

Solana is a popular blockchain platform known for its fast and scalable transaction processing. One of the most significant advantages of using Solana is its seamless integration with popular wallets, including those built using the Web3.js v2 framework. In this article, we will demonstrate how to use Web3.js v2 with the Solana Wallet Adapter in a React application.

What is the Solana Wallet Adapter?

The Solana Wallet Adapter is a JavaScript library that allows you to connect your wallet to the Solana network using Web3.js v2. This adapter enables you to interact with the Solana blockchain without having to worry about setting up and managing a separate wallet instance.

Setting Up the Wallet Adapter in React

To use the Wallet Adapter in a React application, you will need to install it first using npm or yarn:

npm install @solana/wallet-adapter/react

Then, import the adapter into your React component:

import WalletAdapterWeb3 from '@solana/wallet-adapter/web3';


const app = () => {

  return (

    

      

      {/ … /}

    

  );

};

Creating a Wallet Instance

Before you can use the Wallet Adapter, you need to create a wallet instance. You can do this using the new Web3() constructor:

import WalletAdapterWeb3 from '@solana/wallet-adapter/web3';


const wallet = new WalletAdapterWeb3(new Web3.providers.HttpProvider('

Connecting to the Solana Network

Now that you have a wallet instance, you can connect it to the Solana network using the wallet.connect() method:

import WalletAdapterWeb3 from '@solana/wallet-adapter/web3';


const app = () => {

  return (

    

      

      {/ … /}

    

  );

};

Interacting with the Solana Blockchain

Once you are connected to the Solana network, you can use the wallet.getAccounts() method to get a list of wallets on your account. You can then use this information to interact with other accounts in the blockchain.

import WalletAdapterWeb3 from '@solana/wallet-adapter/web3';


const app = () => {

  return (

    

      {wallet.getAccounts().then(accounts => {

        console.log(accounts);

      })}

      {/ … /}

    

  );

};

Common Use Cases

The Solana Wallet Adapter is useful for a variety of common use cases, including:

• Creating and managing accounts on the Solana blockchain

• Sending and receiving transactions between accounts

• Interacting with other accounts in the blockchain

Example Use Case: A Simple Wallet App

Here’s an example of how you could use the Wallet Adapter to create a simple wallet app that allows users to create new wallets and view their account balances:

import React, { useState } from 'react';

import WalletAdapterWeb3 from '@solana/wallet-adapter/web3';


const App = () => {

  const [accountName, setAccountName] = useState('');

  const [balance, setBalance] = useState(0);


  const createWallet = async () => {

    const wallet = new WalletAdapterWeb3(new Web3.providers.HttpProvider('

    await wallet.createWallet();

    setAccountName(accountName);

  };


  return (

    

      
Wallet App

       setAccountName(e.target.value)} />

      Create Wallet

      
Balance sheets: {balance sheet}

    

  );

};

Conclusion

In this article, we demonstrated how to use the Web3.js v2 wallet adapter with Solana in a React application.