Metamask is a well-known browser extension that allows users to interact with the Ethereum blockchain effortlessly. In this step-by-step guide, we’ll explore how to connect Metamask to\u00a0 React website using the ethers.js library<\/p>\n\n\n\n
By the end of this tutorial, you’ll be able to
\u2705 verify whether Metamask is installed
\u2705 connect to users’ wallets and fetch the user details\u00a0<\/p>\n\n\n\n
Step 1: Install the Ethers Library The first step the metamask extension is installed or not in the chrome brower or any other brower In case it’s not installed, we’ll prompt the user to install Metamask for a smooth experience. \u00a0The window.ethereum object is available, which is injected by MetaMask.<\/p>\n\n\n\n Step 3 :\u00a0 Initiating Wallet Connection and fetch the user details\u00a0<\/p>\n\n\n\n Once the Metamask is installed, the next step is to establish a connection between the user’s wallet and our metamask . With the connection established, we’ll have the user’s account address available for further interactions.<\/p>\n\n\n\n How it operates:<\/p>\n\n\n\n To connect MetaMask, we can add a straightforward button to the React component:<\/p>\n\n\n\n <\/p>\n","protected":false},"excerpt":{"rendered":" Metamask is a well-known browser extension that allows users to interact with the Ethereum blockchain effortlessly. 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The Ethers.js library must be installed in the React project. Either yarn or npm can be used:<\/p>\n\n\n\n#Using npm
npm install ethers
#Using yarn
yarn add ethers<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
Step 2: Checking Metamask Installation <\/p>\n\n\n\n
<\/p>\n\n\n\nconst<\/strong> checkMetamaskInstallation = () => {
if<\/strong> (window.ethereum == undefined) {
alert(“Metamask wallet is not installed”);
return<\/strong>;
}
};<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\nconst<\/strong> [account, setAccount] = useState<string | null>(null);
const<\/strong> [balance, setBalance] = useState<string | null>(null);
const<\/strong> connectToMetaMask = async<\/strong> () => {
setIsLoading(true);
try<\/strong> {
if<\/strong> (window.ethereum?.isMetaMask) {
const<\/strong> provider = new<\/strong> ethers.BrowserProvider(window.ethereum);
const<\/strong> accounts = await<\/strong> provider.send(“eth_requestAccounts”, []);
const<\/strong> account = accounts[0];
setAccount(account);
const<\/strong> balance = await<\/strong> provider.getBalance(account);
const<\/strong> ethBalance = ethers.formatEther(balance);
setBalance(ethBalance);
setErrorMessage(“”);
} else<\/strong> {
setErrorMessage(“Please install MetaMask extension!”);
setSnackbarOpen(true);
}
} catch<\/strong> (error: any) {
setErrorMessage(`Error connecting to MetaMask: ${error.message}`);
setSnackbarOpen(true);
} finally<\/strong> {
setIsLoading(false);
}
};<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n\n
UI Implementation Example<\/h3>\n\n\n\n
<button onClick={connectToMetaMask}>Connect Wallet<\/button>
{account && <p>Account Connected: {account}<\/p>}
{balance && <p>Balance: {balance} ETH<\/p>}<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n