npm install alchemy-sdk

yarn add alchemy-sdk

// Imports the Alchemy SDK
const { Alchemy, Network } = require("alchemy-sdk");

// Configures the Alchemy SDK
const config = {
    apiKey: "alchemy-replit", // Replace with your API key
    network: Network.ETH_MAINNET, // Replace with your network
};

// Creates an Alchemy object instance with the config to use for making requests
const alchemy = new Alchemy(config);

const main = async () => {
    // define the contract address whose NFTs you want to fetch
    const contractAddress = "0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D";

    // create an async generator function that uses the getNftsForContractIterator method
    async function getNftsForContract() {
        try {
            let nfts = [];
            // Get the async iterable for the contract's NFTs.
            const nftsIterable = alchemy.nft.getNftsForContractIterator(contractAddress);

            // Iterate over the NFTs and add them to the nfts array.
            for await (const nft of nftsIterable) {
                nfts.push(nft);
            }

            // Log the NFTs.
            console.log(nfts);
        } catch (error) {
            console.log(error);
        }
    }

    // call the async generator function
    getNftsForContract();

};

main();

[
  {
    contract: {
      address: '0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d',
      name: 'BoredApeYachtClub',
      symbol: 'BAYC',
      totalSupply: '10000',
      tokenType: 'ERC721',
      openSea: [Object],
      contractDeployer: '0xaba7161a7fb69c88e16ed9f455ce62b791ee4d03',
      deployedBlockNumber: 12287507
    },
    tokenId: '98',
    tokenType: 'ERC721',
    title: '',
    description: '',
    timeLastUpdated: '2023-03-02T17:33:56.703Z',
    metadataError: undefined,
    rawMetadata: {
      image: 'ipfs://Qma1kbYN4LzAK9XvQUNJ6nf79iAd3dM6K87ivm8oLrisVV',
      attributes: [Array]
    },
    tokenUri: {
      gateway: 'https://alchemy.mypinata.cloud/ipfs/QmeSjSinHpPnmXmspMjwiXyN6zS4E9zccariGR3jxcaWtq/98',
      raw: 'ipfs://QmeSjSinHpPnmXmspMjwiXyN6zS4E9zccariGR3jxcaWtq/98'
    },
    media: [ [Object] ],
    spamInfo: undefined
  },
  {
    contract: {
      address: '0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d',
      name: 'BoredApeYachtClub',
      symbol: 'BAYC',
      totalSupply: '10000',
      tokenType: 'ERC721',
      openSea: [Object],
      contractDeployer: '0xaba7161a7fb69c88e16ed9f455ce62b791ee4d03',
      deployedBlockNumber: 12287507
    },
    tokenId: '99',
    tokenType: 'ERC721',
    title: '',
    description: '',
    timeLastUpdated: '2023-03-02T17:33:56.457Z',
    metadataError: undefined,
    rawMetadata: {
      image: 'ipfs://QmWiXSKwbwHkobDdZbDc6t66kf192P33Ru5UJYhL5mPJTk',
      attributes: [Array]
    },
    tokenUri: {
      gateway: 'https://alchemy.mypinata.cloud/ipfs/QmeSjSinHpPnmXmspMjwiXyN6zS4E9zccariGR3jxcaWtq/99',
      raw: 'ipfs://QmeSjSinHpPnmXmspMjwiXyN6zS4E9zccariGR3jxcaWtq/99'
    },
    media: [ [Object] ],
    spamInfo: undefined
  },
  ... 9900 more items
]