Metamask: Connect MetaMask mobile app to React Native Dapp with DeepLinks

Connecting Metamask Mobile App to React Native Dapp with Deeplinks

AS A Developer of a React Native App, You’re Likely Familiar with the Importance of Seamless User Experiences Across Platforms. One Such Feature is Connecting Your App Directly to External Wallets Like Metamask, Similar to OpenSea. In this article, we’ll explore how to achieve this use the metamask library and deep links.

Why Deep Links?

Deep on the left are a powerful feature in react native that allow you to open an app or a website by clicking on a link within your app’s url. This can be particularly useful for connecting external wallets like metamask, as it provides a clean and native experience for users.

Step 1: Install the Metamask Library

To get Started, Install the Metamask Library Using NPM:

`Bash

NPM Install Metamask

This will Add the Metamask Package to Your Project’s Dependencies.

Step 2: Initialize Metamask in your app

Create a new file called metamask.js in your app’s directory. This File Will Hold the Initialization Logic for Metamask.

`Javascript

Import {metamask} From ‘@Metamask-Connect/Extension’;

Const metamask = New Metamask ({

ID: ‘Yourmetamask_id’, // Replace with Your Metamask ID

});

export default metamask;

`

Replace Yourmetamask_id with the actual id or your metamask wallet.

Step 3: use Deep Links to Connect to Metamask

Create a new file called connect.js in your app’s directory. This file will handle the deep link logic.

`Javascript

Import React, {usestate} From ‘React’;

Import {provider} from ‘@Metamask-Connect/Extension’;

Conn Connect = () => {

Const [connected, setconnected] = usestate (false);

Concernect = Async (wallet) => {

if (! wallet) return;

metamask.on (‘Connect’, () => {

SetConnected (True);

});

metamask.on (‘disconnect’, () => {{

SetConnected (False);

});

};

Return (

);

};

export default connect;

`

In This Example, We’re using the provider component from metamask to connect to metamask. We define a state variable “connected” and an event handler “Onconnect”. When the user clicks the link to connect to metamask, the Onconnect function is called, which setsconnected to true if the wallet was connected successful.

Step 4: use Deep Links in your app

To use deep links to connect to your app, you’ll need to create a new file called app.js. This File Will Define the Route for Connecting to Metamask.

`Javascript

Import React from ‘React’;

import {link} from ‘React-Router-Dom’;

import connect from ‘./connect’;

Const app = () => {

Return (

);

};

Export default app;

`

In This Example, We’re Creating A Link Component That Points to the/Connect route. When the user clicks on this link, they’ll be tasks directly to the metamask app.

Putting It All Together

Here’s an updated version of your apps app.js file:

`Javascript

Import React from ‘React’;

import {link} from ‘React-Router-Dom’;

import metamaskconnect from ‘./metamaskconnect’;

Const app = () => {

Return (

);

};

Export default app;

`

In This Example, We’re Using the MetamaskConnect Component from Our OwnMetamask.js File. This component Handles The Deep Link Logic and Connects to Metamask When the User Clicks On The Link.

Conclusion

Connecting your React Native app Directly to External Wallets Like Metamask is a powerful feature that provides a seamless experience for users.

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