Metamask: Connect React Native App to Metamask

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Here is a detailed article on connecting your react Native App to Metamask:

Connecting Your React Native App to Metamask

Metamask is a powerful wallet that allows users to securely store, Manage, and spend their cryptocurrencies. By Integrating Metamask Into Your React Native App, you can provide users with an intuitive way to interact with metamask and access various features of the wallet. In this article, we’ll walk through the steps on how to connect your react native app to metamask.

Prerequisites

Before you start, ensure that:

You have a metamask wallet installed on your device.

Your react Native App is set up with the necessary permissions (e.g., Android.permission.wake_lock orios.permission.watch_app).

You’ve generated an API key for metamask and stored it secret in your application.

Step 1: Add Metamask To Your App

You can add metamask to your react Native app using the following steps:

a.
Create a New File : In your project’s Src Directory, Create a New File CalledMeta-Mask.js.

b.
Import Metamask : Import Metamask Into Your Meta-Mask.JS File:

`JavaScript



Import metamask from 'React-Native-Metamask';

const metamaskprovider = () => {

  const metamaskinstance = metamask.create ();

  Return ;

};

c.
Use the provider

: use the metamaskprovider 'component to wrap your app and provide access to metamask:

JavaScript



Import react from 'react';

Import app from './app';

Import metamaskprovider from './meta-Mask';

Const app = () => {

  Return 


  ;

};

Step 2: Handle Metamask Instance

To handle the metamask instance, you’ll need to add an event listener for the oninstanceCreated event. This event is emitted when a new metamask wallet is created:

`JavaScript



Import {Useinstance} from 'React-Native-Metamask';

Const app = () => {

  Const instance = Useinstance ();

  return (



      <script src = " 

      <script

        DangerouslyStetinnerhtml = {{{

__html:<script

type = « module »

ref = {instance}

oninstanceCreated = {() => console.log (‘Metamask Instance Created’)}

> ,



        }}

      />


  );

};

This code will log a message to the console when a new metamask wallet is created.

Step 3: Handle Account and Balance Changes

To handle changes in account balance, you can add an event listener for the onaccountupdated event:

`JavaScript



Import {Useaccount} from 'React-Native-Metamask';

Const app = () => {

  Const Account = Useaaccount ();

  return (



      <script src = " 

      <script

        DangerouslyStetinnerhtml = {{{

__html:<script

type = « module »

ref = {instance}

onaccountupdated = {(newaccount) => console.log (‘new account:’, newaccount)}

> ,



        }}

      />


  );

};

This code will log a message to the console whenever an account balance changes.

Conclusion

Connecting your react Native App to Metamask allows users to securely store, Manage, and spend their cryptocurrencies. By following these steps, you can integrate metamask into your app and provide users with a seamless experience.

Note: Make sure to keep your API Key for Metamask Secure and don’t share it publicly.

Additional tips

Always follow best practices when integrating third-party libraries like Native-Metamask react.

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