Here is a step-by-step guide on how to connect your Metamask wallet to the BSC testnet using Web3.js and React:

Prerequisites

• Install the metamask and web3.js packages: npm install metamask web3

• Set up your MetaMask wallet on your testnet (bsc)

• Create a new React project: npx create-react-app metamask-testnet

Step 1: Enable the BSC testnet in Metamask

• Open your MetaMask wallet and go to
  Settings

• Go to
  Advanced Settings >
  Networks

• Select
  Binance Smart Chain (BSC) Testnet from the list of available networks

• Make sure the testnet is enabled

Step 2: Set up Web3.js in your React project

• Install the web3.js: npm install web3

• Create a new file called Web3.js in the root of your React project: touch src/Web3.js

import * as Web3 from 'web3';
const provider = new Web3.providers.HttpProvider('

Step 3: Connect your Metamask wallet to Web3.js

Create a new file called metamaskConnect.js and add the following code:

import * as Web3 from 'web3';
import { metamaskConnect } from './metamask-connector';
const accounts_ = await metamaskConnect();

This will connect your MetaMask wallet to the testnet using the metamask-connector.js file.

Step 4: Configure Account Fetching

Create a new file called accounts.js and add the following code:

import * as Web3 from 'web3';
import { accounts_ } from './metamaskConnect';
const accounts = await web3.eth.getAccounts();
console.log(accounts);

This will fetch the Metamask wallet addresses connected to your testnet account.

Step 5: Use Accounts in React App

Update App.js to use the downloaded accounts:

import * as React, { useState } from 'react';
import Web3 from './Web3';
function App() {
const [accounts, setAccounts] = useState(accounts_);
return (

Testnet metamask accounts
{accounts.map((account) => (
{account
))}
);
}
function MetamaskTestnet() {
return (
{/ Your React app content here /
);
}

This will list the Metamask wallet addresses connected to your testnet account.

That’s it! You should now be able to connect your MetaMask wallet to your BSC testnet and fetch accounts using Web3.js.