Create Your Own NFT on R0ARchain
 

Launch Remix IDE

Remix IDE is an online development environment for creating and deploying smart contracts, and it is fully compatible with R0ARchain.

1. Go to the Remix IDE website.

2. Click on the File Explorer icon and create a new file named MyNFT.sol.

Copy Solidity code into SimpleStorage.sol file

Copy and paste the following ERC-721 NFT contract:

​

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

import "@openzeppelin/contracts/token/ERC721/extensions/ERC721URIStorage.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

contract MyNFT is ERC721URIStorage, Ownable {
    uint256 private _tokenIds;

    constructor() ERC721("MyNFT", "MNFT") {}

    function mintNFT(address recipient, string memory tokenURI) public onlyOwner returns (uint256) {
        _tokenIds++;
        uint256 newItemId = _tokenIds;
        _mint(recipient, newItemId);
        _setTokenURI(newItemId, tokenURI);
        return newItemId;
    }
}

Compile the NFT token Contract

The next step is compiling the ERC-721 contract with the following steps:

1. Click the Solidity Compiler tab.

2. Select Compiler Version 0.8.x.

3. Click Compile MyNFT.sol.

Deploy on R0ARchain

The ERC-721 token can now be deployed on the R0ARchain with these steps:

1. Go to Deploy & Run Transactions.

2. Under Environment, select Injected Provider - MetaMask. 

3. Choose R0AR Chain or R0AR Testnet in MetaMask. 

4. Click Deploy and approve the transaction in MetaMask.

 Mint an NFT

The NFT is now ready to be minted:

1. Under Deployed Contracts, expand your NFT contract. 

2. Find mintNFT() and enter the recipient Address (your MetaMask address). 

3. Token URI (a link to an NFT image, e.g., https://ipfs.io/ipfs/YOUR_HASH). 

4. Click Transact and approve the transaction in MetaMask.
   
   

View Your NFT

Check your R0ARchain NFT: 

1. Copy the contract address from Remix. 

2. Use r0arscan.io or testnet.r0arscan.io to check your NFT. 

3. To view it in MetaMask, go to NFTs, Iimport NFT, and enter your contract address & Token ID.