NFT Minting site for minting the NFT collection of NeptunianX. Create a smart contract in ERC721A for minting the NFT in quantity and whitelisting of wallets to provide a discount of 50% for NFT minting and a maximum of 2 NFT where allowed to mint per wallet. The site was built on react js and the backend was built in node.js and express to store the NFT details off-chain. The NFT collection is deployed in the Opensea NFT marketplace.