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1403/11/20
دسته‌بندی‌هاCRYPTOCURRENCY
نوشته‌شده توسط

Metamask: react ethersjs metamask with Custom RPC provider

Here’s a step by step guide to how to integrate Metamsk React Ethersj and use it as an RPC journalist for an Ethereum -based application:

Step 1: Set Metamk

Make sure Metammsk is installed in the browser. If not, download and install it [Metamk’s official website] (

Step 2: Create Web3 Supplier with MetamSk

Create a new file called “web3.js” at its project directory:

`Javascript

// web3.js

Const Web3 = Require ('Web3');

Ethersprovider class {

Builder () {

Const a providerurl = Window.ethereum.SelecteadDress;

Const Networkid = Window.ethereum.Chainid;

Const Web3 = New Web3 (Window.ethereum);

If (Service Provider && Networkid) {

Restore Web3.Providers Etherprovider ({{

Supplier: Service Provider,

Chainid: Networkid

});

} other {

Console.error ('Metamask journalist') is not found;

Throw a new mistake ('Metammsk is not installed or the selected address is not found');

}

}

}

Module.exports = Etherprovider;

This code creates a classEthersprovider ‘, which confirms the Web3 atmosphere with Metamsk as an RPC journalist. Builder checks if the Metamask service provider and domain URL are available and use them to create a new web3.

Step 3: Use Etersprovire React

In its main file “App.jso" index.js, class’ Ethersproviderand use it rpc

Javascript

// app.js

'React' Import React;

'React-dom' Import ReactDom;

Bring web3provider of './web3.js';

App () function {

return (

{/ Your application content here /}

)

}

ReactDom.render (

Web3Provider Provider = {New Ethersprovider} />

{/ Your application content here /}

,

Document.getementbyid ('Root')

)

Step 4: Use Web3 in its React components

Use theWeb3event to play Ethereum's functions and interact with the block chain. For example:

Javascript

// mycomponent.js

Import react, {'React' {apeestate};

Bring web3provider of './web3.js';

MyComponent Function () {

Const [Accounts, Setaccountaddress] = unstate ('0x ...');

The killer of the Async function () {

Const balance = alea web3provider.eth.getbalance (AccountS);

Console.log (account balance: $ {balance});

}

return (

my component

)

}

``

This code uses the ‘Web3Provider’ event to get the current account address and by calling the ‘Getbalance’ feature that returns the balance of the Ethereum account.

That’s it!

Metamask: react ethersjs metamask with Custom RPC provider

These steps now need to determine Metamas as a RPC service provider at React EtherSJ. You can use this supplier to interact with the block chain from its React application.

ethereum unusual number blocks

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