Build Your First Smart Contract on Juneo Supernet

The blockchain space is evolving rapidly, and the need for scalable, efficient, and secure networks has never been greater. Juneo Supernet is designed to meet these needs, offering developers a robust platform to build decentralized applications (dApps) and blockchain projects with ease. Whether you’re a seasoned developer or new to blockchain development, this guide will walk you through the process of building on Juneo Supernet.

Why Build on Juneo Supernet?

Juneo Supernet is a decentralized Proof-of-Stake (PoS) network that provides several key advantages for developers:

1. Scalability: Juneo Supernet supports Multi-Chain Networks (MCNs), allowing for the creation of multiple blockchains with custom tokenomics and rules. This eliminates the congestion issues seen on other networks.
2. Interoperability: The network enables seamless cross-chain communication and transactions, ensuring your project can interact with other blockchains easily.
3. Cost Efficiency: With significantly lower gas fees compared to other major networks, Juneo Supernet allows for cost-effective development and deployment.
4. Security: Built on the Avalanche consensus mechanism, Juneo Supernet ensures your project is secure and resistant to attacks.

Previously, I already made a guide about how to deploy meme tokens on the Juneo Supernet. This is a simplified version of the previous tutorial. With this version of Smart Contract, we can push forward to more advanced tutorials, like building the interface, which will come later.

LETS START!!!

Step 1: Setting Up Your Development Environment

You can follow this guide to connect your wallet to Juneo Supernet: https://xdropcrypto.medium.com/how-to-add-juneo-supernet-network-to-metamask-step-by-step-guide-d943a5e79024

Step 2: Access Remix IDE

Open Remix: Go to remix.ethereum.org to access the Remix IDE.

Remix IDE

Create a New File: In the Remix IDE, create a new file (e.g., MyToken.sol) and paste the below code into it.

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

contract MyToken {
    string public name = "MyToken";
    string public symbol = "MTK";
    uint8 public decimals = 18;
    uint256 public totalSupply;

    mapping(address => uint256) public balanceOf;
    mapping(address => mapping(address => uint256)) public allowance;

    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);

    constructor(uint256 _initialSupply) {
        totalSupply = _initialSupply * 10 ** uint256(decimals);
        balanceOf[msg.sender] = totalSupply;
    }

    function transfer(address _to, uint256 _value) public returns (bool success) {
        require(balanceOf[msg.sender] >= _value);
        balanceOf[msg.sender] -= _value;
        balanceOf[_to] += _value;
        emit Transfer(msg.sender, _to, _value);
        return true;
    }

    function approve(address _spender, uint256 _value) public returns (bool success) {
        allowance[msg.sender][_spender] = _value;
        emit Approval(msg.sender, _spender, _value);
        return true;
    }

    function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
        require(_value <= balanceOf[_from]);
        require(_value <= allowance[_from][msg.sender]);
        balanceOf[_from] -= _value;
        balanceOf[_to] += _value;
        allowance[_from][msg.sender] -= _value;
        emit Transfer(_from, _to, _value);
        return true;
    }
}

Compile the Contract: Click on the “Solidity Compiler” tab and compile your contract.

Deploy the Contract:

• Go to the “Deploy & Run Transactions” tab.
• Select “Injected Web3” as the environment, which will connect Remix to your MetaMask.
• Make sure MetaMask is connected to the Juneo Supernet network.
• Click “Deploy” to deploy your smart contract on Juneo.

Step 3: Interacting with Your Deployed Contract

In the “Deployed Contracts” section, you’ll see your contract with all its functions. You can call functions like transfer, approve, or transferFrom directly from here.

Whats Next?

Building on Juneo Supernet opens up a world of possibilities for developers. With its scalable, interoperable, and cost-efficient infrastructure, Juneo provides an ideal platform for launching and growing blockchain projects. Whether you’re developing a new dApp, creating a custom token, or building a full-scale blockchain solution, Juneo Supernet has the tools and features to support your vision.

On the next guide i’ll make a tutorial about how to create simple interface to interact with the smart contract. Follow me so you don’t miss any update related to development on Juneo Supernet

Get in touch with Juneo Supernet

Website: https://juneo.com/
X: https://x.com/JUNEO_official
Telegram: https://t.me/JuneoOfficial
Github: https://github.com/Juneo-io
Discord: https://discord.gg/KTta2nqh