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contracts/
scripts/
test/
LICENSE
hardhat.config.js
package-lock.json
package.json

# NFT Marketplace Smart Contract ## Overview This Ethereum smart contract is a decentralized marketplace tailored for Non-Fungible Tokens (NFTs), providing a comprehensive suite of features for buying, selling, and auctioning unique digital assets. Additionally, it introduces the concept of unlisted NFTs with bidding functionality, offering users a versatile platform to engage with digital collectibles. ## Features ### 1. Fixed-Price Sales - **Listing Items:** Users can effortlessly list NFTs for sale by providing the contract address, token ID, and a specified price. - **Purchase Mechanism:** Buyers can seamlessly acquire NFTs by executing the `purchase` function, initiating both the fund transfer and NFT ownership transfer. ### 2. Auctions - **Auction Creation:** Sellers can set up auctions using the `createAuction` function, specifying the contract address, token ID, starting price, duration, and the NFT type (ERC721 or ERC1155). - **Bid Placement:** Bidders can actively participate in ongoing auctions by placing bids using the `placeBid` function. - **Completion and Settlement:** Upon the conclusion of an auction, the seller can execute `acceptBid` to complete the transaction, transferring both funds and NFT ownership to the highest bidder. ### 3. Unlisted NFTs - **Unlisting NFTs:** Owners can opt to unlist NFTs, opening them up for bids through the `placeUnlistedBid` function. - **Bidding on Unlisted NFTs:** Users can place bids on unlisted NFTs, fostering a dynamic environment. - **Bid Acceptance:** The owner can accept the highest bid using `acceptUnlistedBid`, facilitating the transfer of the NFT and the corresponding funds. ### 4. Marketplace Fee - **Configurable Fee:** The smart contract incorporates a customizable marketplace fee (expressed as a percentage) on transactions. ### 5. Admin Functions - **Funds Management:** The contract owner possesses exclusive rights to add funds (`addFunds`) and withdraw funds (`withdrawFunds`). - **Marketplace Fee Adjustment:** The owner can dynamically set or update the marketplace fee through the `setMarketplaceFee` function. ## How to Use ### Fixed-Price Sales 1. Utilize `listForSale` to place an NFT for sale by providing its contract address, token ID, and the desired price. 2. Interested buyers can execute `purchase` with the item ID to complete the purchase transaction. ### Auctions 1. Initiate an auction with `createAuction` by specifying the contract address, token ID, starting price, duration, and NFT type. 2. Bidders actively participate in ongoing auctions by calling `placeBid`. 3. Upon the auction's conclusion, the seller executes `acceptBid` to finalize the auction, transferring funds and NFT ownership. ### Unlisted NFTs 1. Owners can unlist an NFT using `placeUnlistedBid`. 2. Users bid on unlisted NFTs, with the owner able to accept the highest bid through `acceptUnlistedBid`. ### Admin Functions - Contract owners can add funds using `addFunds`. - Withdraw funds using `withdrawFunds`. - Adjust the marketplace fee with `setMarketplaceFee`. ## Important Notes - Ensure your Ethereum wallet is connected for interactions. - Deploy on Ethereum Mainnet or Testnets. ## Live Demo [Explore the live demo of the NFT Marketplace](https://github.com/baibars313/NFTmarketPlace-contracts/blob/master/) ## License This smart contract is open-source and released under the MIT License. Feel free to explore, contribute, and integrate it into your projects. # NFT MarketPlace Project This project demonstrates a basic Hardhat use case. It comes with a sample contract, a test for that contract, and a script that deploys that contract. Try running some of the following tasks: ```shell npx hardhat help npx hardhat test REPORT_GAS=true npx hardhat test npx hardhat node npx hardhat run scripts/deploy.js ```

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