NFTMarketplace

NFTMarketplace is a smart contract built on the Ethereum blockchain that allows users to mint, list, and buy Non-Fungible Tokens (NFTs). This contract leverages the OpenZeppelin library for ERC721 token standards and ownership management.

Features

• Minting: Only the contract owner can mint new NFTs.
• Listing: NFT owners can list their NFTs for sale at a specified price.
• Buying: Users can buy listed NFTs by paying the specified price.
• Withdrawing: The contract owner can withdraw funds from the contract.

Contract Details

Events

• NFTMinted(uint256 tokenId, address creator): Emitted when a new NFT is minted.
• NFTListedForSale(uint256 tokenId, uint256 price): Emitted when an NFT is listed for sale.
• NFTSold(uint256 tokenId, address buyer, uint256 price): Emitted when an NFT is sold.

Functions

• mintNFT(string memory tokenURI, uint256 price) public onlyOwner returns (uint256): Mints a new NFT with the given token URI and price. Only the contract owner can call this function.
• listNFTForSale(uint256 tokenId, uint256 price) public: Lists an NFT for sale at the specified price. Only the owner of the NFT can call this function.
• buyNFT(uint256 tokenId) public payable: Buys a listed NFT by paying the specified price.
• withdraw() public onlyOwner: Withdraws funds from the contract. Only the contract owner can call this function.
• totalMintedNFTs() public view returns (uint256): Returns the total number of NFTs minted.
• getListing(uint256 tokenId) public view returns (NFT memory): Returns the details of a listed NFT.

Usage

Deployment

To deploy the contract, use the following script: