Using Remix IDE

🟩 This is a beginner track.

📜 TL;DR:

In this tutorial, we will utilize Remix IDE, a versatile, open-source web-based platform, to develop and deploy our smart contract onto Hemi Testnet.
Ensure to use Solidity version 0.8.19 or earlier for compatibility with the Hemi testnet environment.

🏁 Prerequisites

📚 Tutorial

1. Go to Remix IDE

Remix IDE is a powerful, open-source web application for developing, compiling, and deploying Ethereum smart contracts with ease.

2. Add the Smart Contract

In Remix IDE, start by creating a new file named HelloWorld.sol.

The following contract is a basic example designed for interaction. Copy the code below and paste it into the file HelloWorld.sol.

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

contract HelloWorld {
    string public greeting = "Hello, World!";

    function getGreeting() public view returns (string memory) {
        return greeting;
    }

    function setGreeting(string memory _greeting) public {
        greeting = _greeting;
    }
}

3. Compile the Contract

Ensure that the Solidity Compiler is configured to version 0.8.19 or earlier. This is necessary for compatibility with the current smart contract requirements.

Select Compile HelloWorld.sol button to use the Remix IDE's Solidity compiler. Check for any compilation errors and fix them.

4. Connect Remix To MetaMask

The address you choose to connect MUST have a minimum balance of 0.10 ETH to pay for contract deployment fees. Refer back to earlier documentation to fund your Hemi address with ETH.

Choose Injected Provider - MetaMask under "Environment".