Metamk Authentication in React (VITE) Browser extension: a step by step guide
As a developer that builds web extensions with React and Vite, it is likely to be familiar with the importance of access control. A crucial appearance is to authenticate its extension with Metamask, a popular cryptocurrency wallet. However, when using Vite, he finds a problem due to the lack of Window.ethereum. In this article, we will guide it through the configuration of the authentication of MetamSk in its extension of the React (VITE) browser.
Why can’t I use Window.ethereum?
Window.ethereum is an incorporated object that provides access to the Ethereum web library. When using Vite and React, the environment does not allow direct access to this object due to security restrictions. The problem arises because VITE incorporated support for web3 does not cover browser extensions.
Recommended solution: MetamSk Extension-Provider
To solve this problem, you can use the Metamk extensions provider, a popular solution to authenticate its web extension with MetamSk. This library allows you to connect its extension without requiring Window.ethereum.
Step 1: Install the Metamk extension supplier
You must install the Metamk extension provider with NPM or thread:
`Bash
NPM Install Metamask-Extension-Provider
Or, if you are using thread:
Bash
Thread Add Metamk-Extension-Provider
Step 2: Configure the Metamk extensions provider in its React (Vite) extension
Create a new file calledMetamask.jsin the directory srcof its extension. This file will contain the code that establishes a connection with MetamSk.
JavaScript
Import {Connect} of 'React-Vite';
Import MetamaskexTensionProvider of 'Metamk-Extension-Provider';
consta metamprovider = {
Contracts: [
// List of contract addresses you want to access
{
Name: 'contract1',
Address: '0x ... contractaddress ...',
},
]
};
connect({
Supplier: metamaskextensionprovider,
ID: 'Your-Extension-ID',
Contracts: metamaskprovider,
})
Replacecontract1with the real addresses of your contract, and 0x … Contractaddress …with the address of your contract.
Step 3: register its extension
To register its extension, it must generate a unique identification for it. This ID will be used as an identifier in the Metamk extensions supplier configuration:
JavaScript
const extension = 'Your-Extension-ID';
Update yourmetamask.jsfile with the following code:
JavaScript
Import {Connect} of 'React-Vite';
Import MetamaskexTensionProvider of 'Metamk-Extension-Provider';
consta metamprovider = {
Contracts: [
// List of contract addresses you want to access
{
Name: 'contract1',
Address: '0x ... contractaddress ...',
},
]
};
connect({
Supplier: metamaskextensionprovider,
ID: extension,
Contracts: Metamkprovider,
})
Step 4: Connect its extension
Now, you can connect its extension to the Metamk extensions supplier. Update yourmanifest.jsonfile with the following code:
JSON
{
"Manifest_version": 2,
"Name": "its extension name",
"Version": "1.0.0",
"Description": "A brief description of its extension",
"icons": {
"۱۶": "Route/a/icon16.png",
"۴۸": "Route/a/icon48.png",
},
"background": {
"scripts": ["metamSk.js"],
},
}
Replaceicon16.pngy icon48.pngwith the icons of its extension.
Step 5: Add its extension to MetamSk
Finally, add its extension to the Metamk extension provider:
JavaScript
// In Metamk-Extension-Provider/
Export const a provider = {
ID: 'Your-Extension-ID',
};
Execute vite and create a new extension of the browser usingvite create`.
Congratulations!
