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

Prerequisites

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

• Set up MetaMask wallet on testnet (bsc)

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

Step 1: Enable BSC Testnet in Metamask

• Open your MetaMask wallet and navigate to
  Settings

• Go to
  Advanced settings >
  Networks

• Select
  Binance Smart Chain (BSC) Testnet

  

  from the list of available networks

• Make sure the testnet network is enabled

Step 2: Set up Web3.js on the React Project

• Install web3.js package: npm install web3

• Create a new file called Web3.js in your React project’s root directory: touch src/Web3.js

import * as Web3 from 'web3';


const provider = new Web3.providers.HttpProvider('

Step 3: Connect the 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 network using the metamask-connector.js file.

Step 4: Set up Account Retrieval

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 retrieve the Metamask wallet addresses connected to your testnet account.

Step 5: Use Accounts in Your React App

Update your App.js file to use the retrieved accounts:

import * as React, { useState } from 'react';

import Web3 from './Web3';


function App() {

  const [accounts, setAccounts] = useState(accounts_);


  return (

    

      
Metamask Testnet Accounts

      

        {accounts.map((account) => (

          
{account}

        ))}

      

    

  );

}


function MetamaskTestnet() {

  return (

    

      

        {/ Your React app content here /}

      

    

  );

}

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

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

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