🧱Marketplace

NFT Marketplace & Trading

1. SuperWAL NFT Marketplace

SuperWAL has developed an NFT Marketplace that allows users to mint, list, and trade NFTs seamlessly with low fees.

📌 Key Features of SuperWAL NFT Marketplace: ✅ Mint & List NFTs – Users can mint and list NFTs directly on the Marketplace. ✅ Trade NFTs with SPL Token – NFTs are traded using SPL Token, optimizing fees. ✅ Integrated NFT Auctions – Supports public auctions or fixed-price sales. ✅ Blockchain-Based NFT Verification – Every NFT transaction is recorded and verified on Walchain. ✅ Multi-Chain NFT Support – NFTs can be bridged to Ethereum, BSC, Polygon.

📌 NFT Trading Process on SuperWAL Marketplace

1️⃣ User Mints NFT → Creates an NFT via SuperWAL NFT Studio. 2️⃣ Lists NFT → Chooses between fixed-price or auction-based listing. 3️⃣ Buyer Places Order → Pays with SPL Token or other supported tokens. 4️⃣ Transaction Confirmation → Smart contract processes and records it on Walchain. 5️⃣ NFT Ownership Transfer → Buyer receives NFT in Web3 wallet.

📌 Example: Solidity Code to List NFTs on the Marketplace

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC721/IERC721.sol";

contract SuperWALNFTMarketplace {
    struct Listing {
        address seller;
        uint256 price;
        bool isActive;
    }

    mapping(uint256 => Listing) public listings;
    IERC721 public nftContract;

    constructor(address _nftContract) {
        nftContract = IERC721(_nftContract);
    }

    function listNFT(uint256 tokenId, uint256 price) public {
        require(nftContract.ownerOf(tokenId) == msg.sender, "Not NFT owner");
        listings[tokenId] = Listing(msg.sender, price, true);
    }

    function buyNFT(uint256 tokenId) public payable {
        Listing memory listing = listings[tokenId];
        require(listing.isActive, "NFT not for sale");
        require(msg.value >= listing.price, "Insufficient funds");

        payable(listing.seller).transfer(msg.value);
        nftContract.safeTransferFrom(listing.seller, msg.sender, tokenId);
        listings[tokenId].isActive = false;
    }
}

🚀 This contract enables users to list and purchase NFTs directly on the SuperWAL Marketplace.

---

2. NFT Bridge Between Blockchains

SuperWAL supports an NFT Cross-Chain Bridge, allowing NFTs to be traded across multiple blockchains.

📌 How SuperWAL NFT Bridge Works

1️⃣ User Deposits NFT into the Bridge → NFT is locked on Walchain. 2️⃣ Bridge Mints Wrapped NFT on Ethereum/BSC/Solana → A duplicate NFT is created for trading on another blockchain. 3️⃣ Users Trade NFT on OpenSea/Rarible → NFT can move between ecosystems. 4️⃣ User Withdraws NFT Back to Walchain → The original NFT is unlocked.

📌 Benefits of SuperWAL NFT Bridge ✅ Allows NFT trading across multiple blockchains. ✅ Supports NFTs from Ethereum, BSC, Polygon, Solana. ✅ Secures NFTs using Zero-Knowledge Proofs (ZKPs) authentication.

🚀 SuperWAL enables higher NFT liquidity and seamless cross-chain trading!

---

🔥 SuperWAL not only provides NFTs but also expands NFT trading and usability across multiple blockchains! 🚀