How to connect MetaMask to your web app on mobile devices
Since you are using Web3.js on your desktop and want to access your MetaMask balance from a mobile app, you need to follow these steps. This article will guide you through the process.
Step 1: Enable Web Application Access (WAX)
To enable WAX (Web Application Access) in MetaMask, follow these steps:
- Open MetaMask on your desktop.
- Go to
Tools >
Advanced Settings.
- Scroll down to the “Enable Web Application Access” section and toggle the switch to the right.
Step 2: Install MetaMask for Desktop
For Android devices:
`hit
npm install metamask
For iOS devices:
hit
Pod to install Metamask
Step 3: Launch MetaMask on Mobile
- Open your mobile app and go to
Settings.
- Scroll down to the "Web Apps" section and turn on the switch to enable WAX (Web App Access).
- You can now access MetaMask from your app.
Step 4: Connect to WebAppAccessProvider
To connect to WebAppAccessProvider, you will need to use a provider that allows MetaMask to communicate with your desktop app. One of these providers is "web3 provider".
Here is an example code snippet:
javascript
import { ethers } from 'web3-provider';
const provider = new ethers.providers.Web3Provider(window.ethereum);
const metamaskAddress = 'YOUR_METAMASK_ADDRESS'; // Replace with your MetaMask address
// Get the current balance of your MetaMask wallet
async function getMetamaskBalance() {
const accounts = await provider.getAccounts();
return await accounts[0].balance;
}
getMetamaskBalance().then((balance) => console.log(balance));
web3 providers
Step 5: Integrate with your web appTo integrate
with your desktop app, you can use a library like
react-web3-provider. Here is an example code snippet:
javascript
import { ethers } from 'web3-provider';
const provider = new ethers.providers.Web3Provider(window.ethereum);
export const getMetamaskBalance = async () => {
return await provider.getBalance();
};
Tips and Variations
- Make sure to replace YOUR_METAMASK_ADDRESS` with your actual MetaMask address.
- If you are using a custom provider, make sure it is properly configured for WAX (Web Application Access).
- For Android devices, make sure to enable “Web Apps” in the app settings.
If you follow these steps and adapt this guide to your specific use case, you should be able to connect to MetaMask from your web app on mobile devices using Web3.js. Happy coding!