Metamask: How do I make a crypto browser extension like metamask?

Building an extension of cryptography with metamascus: Step by step guide

Are you interested in creating an extension of a cryptographic browser similar to Metamask, a popular web extension that allows users to interact with decentralized applications (DEXS) and buy tokens of malfunction (NFT)? In this article, we will guide you through the process of building a basic extension of a similar metamascus. We will cover the necessary steps and resources so that we can start.

What is metamask?

Before you dive into the process, let’s quickly examine what Metamask offers:

• Signature transactions to Dexs

• Buy NFT using cryptocurrency

• Manage safely private keys

Why build a cryptor extension?

Creating a browser extension, such as metamascus, can be an exciting project. Here are some benefits:

* Expand your browser experience

: Add new features and features to your existing browser.

* Educational value : show the importance of cryptography and safe management of wallet for Krypto users.

* Community involvement : Attract the interest of potential users who can appreciate native extension.

We start: Setting up a development environment

If you want to build an extension similar to metamascus, you will need:

• Node.js : Install node.js (version 14 or higher) to your computer and set the development environment.

• Webpack : Use a webpack to pack your code in one distribution file.

• BABEL : If necessary, convert syntax ES6+ syntax ES5.

Step by step guide to build your extension

We will use the following steps as a starting point:

Step 1: Set your development environment

Create a new directory for your extension and initialize it using NPM Init. Install Node.JS and required packages:

`Bash

Installation NPM -g @Types/Node Webpackbabel -loader

`

Step 2: Create a new file structure

Organize your code to the following files:

• Manifest.json (Metadata extension)

• Webpack.config.js (WebPack configuration)

• src/extension.js (implementation of browser extension)

Step 3: Implement transaction signature and Dex integration

In src/extension.js Create a transaction signature feature:

`Javascript

Import * as Web3 from ‘Web3’;

Const Web3 = New Web3 (Window.ethereum);

// Example of use: Sign transaction on Dex

Signransaction function (address, data) {

Return Web3.eth.Signtransaction ({

To: Address,

Value: Web3.utils.towei (Data, “Etter”),

Gaslimite: 21000,

}).

}

// Example of use: Treat the user’s interaction with Dex

Document.Getelementbyid (‘dex-intro’). Addeventlistener (‘click’, () => {{{

Const Address = Prubn (‘Enter your Ethereum’ address);

Const Data = Pult (‘Type transactions data (eg ABI call)’);

Signransaction (address, data) .Then ((Signedtx) => {

// Signing transactions with a signed handle on Dex

});

});

`

Step 4: Integrate with Web3 provider

In manifest.json add metadata for your extension:

`json

{

“Name”: “Metamask extension”,

“Version”: “1.0.0”,

“Description”: “Extension of the browser to signature transactions on Dex and purchase NFT using a cryptocurrency”,

“Author”: “Your Name”,

“Content_scripts”: [

{

“Matching”: [““],

“JS”: [“SRC/Extension.js”]

}

]

“Permissions”: [“ActiveTab”]

}

`

Step 5: Build your extension

Create a new file “Webpack.config.js” and configure WebPack:

`Javascript

Const CONST = requires (“road”);

Const Webpack = Require (‘Webpack’);

module.exports = {

// … Other configurations …

Input: ‘.

Output: {

File name: “Extension.js”,

Road: Path.join (__ Dirname, ‘Dist’),

},

module: {{

Rules: [

{

Test: /\.