ERC-721
DESCRIPTION
The ERC-721 NFT contract allows users to mint new ERC-721 non-fungible tokens. It inherits from ERC721URIStorage, which provides functionality for managing token ownership and metadata. The mintNFT() function is used to create a new token by assigning it to a specific user and setting its unique token URI. Each token has a unique token ID, which is generated using the _tokenIds counter and incremented after each minting operation.
FUNCTIONS
- Approve 
- mintNft : This function is used to mint a new ERC721 non-fungible token (NFT). It takes the address of the user to whom the NFT will be assigned and the tokenURI, which is a unique identifier for the token's metadata. The function generates a new token ID using the _tokenIds counter, mints the token to the user's address, sets the token's URI, increments the token ID counter, and returns the newly created token ID. 
- safeTransferFrom 
- setApprovalForAll 
- transferFrom 
- balanceOf 
- getApproved 
- isApprovedForAll 
- Name 
- ownerOf 
- Symbol 
- tokenUri 
EXTRA PARAMETERS
Contract Level : Easy
Utility Tags : ERC-721, NFT Minting, NFT
- name (string): The name of the ERC-721 token contract. 
- symbol (string): The symbol or ticker of the ERC-721 token contract. 
USES
- Digital Art Marketplaces: Artists can use the contract to mint their digital artworks as ERC-721 NFTs. Each artwork can have a unique token ID and associated metadata, allowing for ownership tracking and provenance verification on the blockchain. 
- Collectibles and Trading Card Games: The contract can be used to create and manage unique collectible items or trading cards as ERC-721 NFTs. Each item or card can have distinct properties, artwork, and metadata, enabling players to collect, trade, and interact with them in games. 
- Virtual Real Estate: The contract can be employed to tokenize virtual land or real estate properties in virtual worlds or decentralized applications. Each token represents a unique piece of virtual land, allowing users to buy, sell, and trade virtual properties on the blockchain. 
- Tokenized Assets: The contract can be utilized to tokenize real-world assets, such as real estate properties, artwork, or luxury goods. Each asset can be represented as an ERC-721 NFT, providing fractional ownership, provenance, and transparent transferability on the blockchain. 
- Identity and Certification: The contract can be used to issue unique digital identities or certificates as ERC-721 NFTs. Each NFT can represent an individual's identity or a specific certification, enabling secure verification and tamper-proof record-keeping. 
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