Metamask: Using Ethersjs to Connect Metamask to Local Hardhat Node Provider

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Here is an article about the use of Ether.JS to connect metams with a local hardhat node supplier:

Metask that connects to a local Hardhat Node provider with Etherea.JS

When developing decentralized applications (DAPP) that require interaction with external services, such as MetaScus or Web3, it is crucial to connect with the local hardhat node. In this article, we will explore how to use ETHERS.JS to get this connection.

Why use Ether.JS?

Ethers.JS is the official JavaScript library for interaction with Ethereum Blockchain. It offers a simple and intuitive API to work with services such as Metascus, Web3js and many more. Using Ethers.JS, you can easily connect the local hardhat node to external services without worrying about installing the additional infrastructure or configuration.

Configuring the Local Hardhat Node

Before you dive in Metamascus connecting, make sure your local hardhat node is properly placed. Here is a brief steps navigation:

• Install Truffle ': Truffs offers a way to manage and interact with blockchain projects using Javascript.

Bash

3

`Power

Pragma solidity ^0.8.0;

Mycontkrt contract

Public value Nint256;

Iche

`

• Compare and arrange the contract:

`Bash

Metamic connection with Ether.JS

Now that you have a local set of hardhat nodes, we connect Metamascus using ethers.js. We will use `ees.js library to interact with Metask.

Create a new file calledmetamascus-connection.jsand add the following code:

Javascript

Const Ethers = request (‘etheri’);

// configure contract address and abi

Treaty Const = ‘0x …’; // replace the contract address

Const ABI = […]; // replace with Abi with a contract

// Create a new instance of a service provider for your Local Hardhat Node

Consist supplier = new ethers.providers.httprovider (‘http: // localhost: 8545’);

// Create a new instance of ETHERS.JS wallets using a Metascus service provider

Const Wallet = New Ether.Wallet (service provider, ‘0x …’); // replace the key with private metamark private key

// get an instance of a contract using a wallet

Contract to treat const = new ether.

// now you can use an instance of an interaction contract with blockchain

contract.value.set (123);

`

Example of use

Here is an example of how you can use a Metascus connection to set the contract value:

`Javascript

METASCESCUS-Connection.js

`

Assuming you have a MyContract file.

Javascript

Setvalue = (value) => {

contract.value.set (value);

Iche

`

Tips and Variations

• Ensure that you replace the ABI,abiand" wallet "contract with your contract address, ABI and Metascus private.

• You can also use other ether.js service providers, such ashttp: // localhost: 8546or https: // main.infura.io/v3/your_project_id.

• If you use another web3 service provider (eg web

Following these steps and examples, you should be able to connect your local Hardhat with a metamascus with ethers. Happy building!

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