Metamask: How can I get all the Metamask accounts that are linked to my website?

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This article will show you how to retrieve all accounts from Metamask connected to your website using Web3 and a Chrome extension:

Connecting All Accounts to Your Website Using Metamask

Metamask is a popular cryptocurrency wallet that allows users to securely store, send, and receive funds. When you connect Metamask to your website using the Chrome extension, it stores the account information locally on the user’s device. However, if you want to retrieve all accounts connected to your website programmatically, you can use Web3.js to retrieve the account information.

Step 1: Configure MetaMask and Web3.js

First, make sure you have Metamask installed on your Chrome extension. You can install it from the Chrome extensions page. Once installed, create a new Web3.js instance by specifying the Ethereum provider:


const web3 = new Web3(new Web3.providers.HttpProvider('

Replace “YOUR_PROJECT_ID” with your actual Infura project ID.

Step 2: Request Account Information

Use the ethereum.request() method to request account information from Metamask. This method returns an array of accounts that are connected to the Ethereum network:


ethereum.request({
method: 'eth_accounts',
});

This returns an empty array, indicating that there are no connected accounts.
Step 3: Retrieve Account Information

If you want to retrieve account information for specific accounts, use the ethereum.query() method. You can pass a callback function to retrieve the account information:


ethereum.onaccountconnect((accounts) => {
console.log(accounts);
});

This logs a set of connected Ethereum accounts.

Example Code

Here is a sample code snippet that shows how you can retrieve all the accounts connected to your website using Web3.js and the Metamask Chrome extension:


const web3 = new Web3(new Web3.providers.HttpProvider('
const accounts = [];
ethereum.request({
method: 'eth_accounts',
})
.on('accounts', (accounts) => {
console.log(accounts);
accounts.forEach((account) => {
accounts.push(account.address); // Add the account address to the array
});
});
ethereum.onaccountconnect((accounts) => {
console.log(accounts);
});

Replace “YOUR_PROJECT_ID” with your actual Infura project ID.

Note

Retrieving account information may require permission from users, and it is important to comply with local laws and regulations regarding user data. Additionally, if you plan to use this code in a production environment, consider implementing appropriate error handling and security measures.

By following these instructions, you can retrieve all accounts connected to your website using Web3.js and the Metamask Chrome extension.

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