Write Your First NFT

Prerequisites

Before you begin, ensure you have the following:

• Git: Used for code management and obtain examples.

• Node.js: Install it from nodejs.org.

• Pharos Devnet/Testnet Access: Access to a Pharos node (local or remote) for interacting with the blockchain.

Setup 1: Install Hardhat

• Hardhat

Setup 2: Set Up the Project

Clone the example repo:

git clone https://github.com/PharosNetwork/examples
cd examples/nft/hardhat/contract

Install OpenZeppelin Contracts:

npm install

Setup 3: Write the NFT Contract

Create a New Solidity File:

• Create a new file for your NFT contract:

touch contracts/Token.sol

Write the Token Contract:

• Open contracts/Token.sol in your favorite text editor and add the following code:

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import "@openzeppelin/contracts/token/ERC721/ERC721.sol";

contract Token is ERC721 {
    uint256 id;
    constructor() ERC721("Token", "MTK") {}

    function mint(address to) public returns (uint256) {
        id += 1;
        _mint(to, id);
        return id;
    }
}

Compile the Smart Contract:

npx hardhat compile

Test the Smart Contract

npx hardhat test

Step 4: Deploy the Token Contract

Set the private key:

npx hardhat vars set PRIVATE_KEY

Deploy the Contract:

npx hardhat ignition deploy ./ignition/modules/Token.js --network pharos

Troubleshooting

• Contract Deployment Fails: Ensure you have enough testnet tokens to cover the deployment cost.

• Interaction Issues: Verify that the contract address and ABI are correct.

• Insufficient Balance: Ensure your wallet has enough tokens to transfer.

Conclusion

Now that you’ve created and deployed your first NFT using Hardhat.

This guide provides a comprehensive introduction to to creating and deploying an NFT on the Pharos blockchain. If you encounter any issues, refer to the Troubleshooting section or consult the Hardhat documentation. Happy building! 🚀