token.sol

The FriendshipNFT contract is a basic, self-contained NFT smart contract that allows users to mint NFTs representing friendships. This contract does not rely on external imports like OpenZeppelin, making it lightweight and simple.

Key Features:

1. Basic NFT Metadata

   • name: "FriendshipNFT" (Collection name)

   • symbol: "FRND" (Ticker symbol)

2. NFT Minting Mechanism

   • _tokenIdCounter: Tracks the next available token ID.

   • mintNFT(string memory _tokenURI):

     • Mints an NFT.

     • Assigns ownership to the caller (msg.sender).

     • Stores the associated metadata (tokenURI).

     • Increments _tokenIdCounter for unique IDs.

3. Ownership Tracking

   • ownerOf: Maps each token ID to its respective owner.

   • tokenURI: Stores metadata for each NFT.

Limitations:

• Not ERC-721 compliant (Lacks transfer functions and approval mechanisms).

• No security checks (Anyone can mint unlimited NFTs).

• No URI validation (Stores metadata as provided without verification).

Would you like to extend its functionality by adding ERC-721 compliance, transferability, or access control? 🚀