MyNFT Project

This project demonstrates the creation, deployment, and minting of an ERC-721 Non-Fungible Token (NFT) on the Sepolia testnet. The NFT metadata is stored on IPFS, and the minted NFTs can be viewed on OpenSea's Sepolia testnet.

Project Structure

• contracts/

  • MyNFT.sol: The main smart contract that implements the ERC-721 standard using OpenZeppelin libraries.

• scripts/

  • mint.js: A script to mint an NFT by attaching to the deployed contract and passing the metadata URI.

• metadata/

  • metadata.json: Example JSON file containing metadata for the NFT, including the name, description, and image URI.

• .env

  • Contains environment variables, including the wallet address where the NFT will be minted.

Requirements

• Node.js and npm
• Hardhat
• A MetaMask wallet with some Sepolia testnet ETH
• An account on Pinata or another IPFS service

Setup

1. Clone the Repository:

   git clone https://github.com/DonGuillotine/nft-opensea-contract.git
   cd MyNFT

2. Install Dependencies:

   npm install

3. Configure Environment Variables:

   Create a .env file in the root directory with the following content:

   OWNER_ADDRESS=0xYourEthereumAddress
   

   Replace 0xYourEthereumAddress with your MetaMask wallet address.

4. Deploy the Smart Contract:

   To deploy the smart contract to the Sepolia testnet:

   npx hardhat run scripts/deploy.js --network sepolia

   This will deploy your MyNFT contract and output the contract address.

5. Mint an NFT:

   Update the mint.js script with the correct contract address and metadata URI. Then, run the script:

   npx hardhat run scripts/mint.js --network sepolia

   This script mints an NFT to the specified OWNER_ADDRESS.

6. View Your NFT on OpenSea:

   After minting, you can view your NFT on OpenSea's Sepolia testnet section. If the image or metadata does not appear immediately, use the "Refresh Metadata" button on OpenSea.

Troubleshooting

• Image Not Showing on OpenSea: Make sure that the image URI in the metadata.json is correctly pointing to a valid IPFS link. If the ipfs:// link is not displaying the image, try using a public gateway URL (e.g., https://gateway.pinata.cloud/ipfs/...).

• Contract Deployment Issues: Double-check your network settings in hardhat.config.js and make sure you have enough Sepolia testnet ETH in your MetaMask wallet.

Contributing

Contributions are welcome! Please open an issue or submit a pull request with your changes.

License

This project is licensed under the MIT License.