const accounts = await ethereum.request({ method: 'eth_requestAccounts' }); const account = accounts[0]; Use code with caution. Copied to clipboard 3. Handle Changes
: Handlers for when a user switches accounts or changes networks (e.g., from Ethereum Mainnet to Polygon). metamask_api_js_page.zip
if (typeof window.ethereum !== 'undefined') { console.log('MetaMask is installed!'); } Use code with caution. Copied to clipboard 2. Request Accounts const accounts = await ethereum
: Never store private keys or sensitive data within these client-side JS files. if (typeof window
Good dApps stay in sync. Use these listeners to keep the UI accurate:
This project provides the foundational JavaScript logic required to bridge a web browser with the MetaMask wallet. It handles the "handshake" between your decentralized application (dApp) and the user's blockchain account. 📂 Core Components The contents typically include:
: Functions to detect window.ethereum and request account access.