Metamask authentication React (Vite) browser extension: step by step guide
As a developer that creates web extensions with React and Vite, you are probably known for the importance of access control. One important aspect is authentication of your extension with Metamk, popular cryptocurrency wallet. However, when using Vite, you encounter the problem because of the lack of window.etheum. In this article, we will help you set up Metamk authentication in your REACT (VITE) browser extension.
Why can't I use thewindow.etheum?
Window.ethereum is a built -in object that provides access to the Ethereum Web3 library. Using Vite and responding, the environment does not allow this object directly to be directly accessible. The issue arises because the Vite’s built -in Web3 support does not cover the browser extensions.
Recommended solution: Metamask extension -provider
To solve this problem, you can use the Metamka extension -provider-popular solution to the web extension authentication with Metamk. This library allows you to connect the extension without asking for a “window.etheum”.
Step 1: Install Metamask Extension-Provider
You will need to install the Metamask extension provision using NPM or yarn:
`bash
NPM Install Metamk-Pargation-Provider
`
Or if you use yarn:
`bash
yarn adds Metamk-Park-Provider
`
Step 2: Metamask Extension-Provider Configuration in your React (Vite) Extension
Create a new file called “Metamk.JS” in your extension directory ‘SRC’. This file will contain a code that connects to Metamask.
`JavaScript
Import {Connect} from ‘REACT-VITE’;
Import MetamkExtensionprovider from Metamk-EXTENSION-PROVIDER;
Const Metamkprovider = {{
Contracts: [
// Agreement addresses you want to access
{
Name: ‘Agreement1’,
Address: ‘0x … Contractaddress …’,
},
]
};
connect ({
Service Provider: MetamkExtensionprovider,
ID: “Your extension-ID”,
Contracts: Metamkprovider,
})
`
Replace ‘Agreement1’ with the actual addresses of the contract and ‘0x … Contractaddress … with your contract address.
Step 3: Register your extension
You need to create a unique ID to register your extension. This ID will be used as an identifier in the Metamask extension and provision configuration:
JavaScript
Const Extensionid = ‘Your extension-id’;
`
Update your file “Metamk.js” with the following code:
`JavaScript
Import {Connect} from ‘REACT-VITE’;
Import MetamkExtensionprovider from Metamk-EXTENSION-PROVIDER;
Const Metamkprovider = {{
Contracts: [
// Agreement addresses you want to access
{
Name: ‘Agreement1’,
Address: ‘0x … Contractaddress …’,
},
]
};
connect ({
Service Provider: MetamkExtensionprovider,
ID: Extensionid,
Contracts: Metamkprovider,
})
`
Step 4: Add your extension
Now you can connect your extension to the Metamask extension provider. Update your file “Manifest.json” with the following code:
`JSON
{
“Manifest_version”: 2,
“Name”: “Your extension name”,
“Version”: “1.0.0”,
“Description”: “Short description of your extension”,
“icons”: {
“16”: “Road/to/icon16.png”,
“48”: “Road/to/icon48.png”,
},
“Background”: {
“Scripts”: [“Metamk.js”],
},
}
`
Replace icon16.PNG 'and' icon48.PNG 'with extension icons.
step 5: Add your extension to Metamk
Finally, add your extension to the Metamask extension provider:
JavaScript
// Metamaskas-Parking-Provider/
Export Const Provider = {
ID: “Your extension-ID”,
};
`
Run Vite and create a new browser extension using `Vite Create”.
Congratulations!
