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    <meta charset="utf-8" />
    <title>Get all NFTs in the NFT collection</title>
    <script type="module" src="./app.js"></script>

  <div id='form'>
    <h2>Your NFT Marketplace </h2>
        <h4>Enter any collection address: </h4>
    <input type="text" id="address" placeholder="Enter collection address" value='0x524cab2ec69124574082676e6f654a18df49a048'/>
    <button id="check-balance">Load Collection</button>
  <div id="total-nfts"></div>
  <div id="balance-container">



                body {
  font-family: Poppins, sans-serif;
  font-size: 35 px;
  text-align: center;
  position: relative;

h4 {
  font-size: 16px;

body::before {
  content: "";
  position: absolute;
  top: -30px;
  right: 0;
  bottom: 0;
  left: 0;
  background-image: url('');
  min-width: 1200px;
  width: 100%;
  background-size: contain;
  background-position: top;
  background-repeat: no-repeat;
  opacity: 0.1;
  z-index: -1;

input[type="text"] {
  width: 20%;
  padding: 13px 10px;
  font-size: 12px;
  border-radius: 5px;
  border: 1px solid #e4e4e4;
  margin-bottom: 30px;

#check-balance {
  font-family: Poppins, sans-serif;
  padding: 10px 20px;
  font-size: 12px;
  border-radius: 5px;
  border: 1px solid transparent;
  background-color: #4237ff;
  color: white;
  cursor: pointer;
  transition: background-color 0.3s, color 0.3s, border-color 0.3s;

#check-balance:hover {
  background-color: white;
  color: #4237ff;
  border-color: #4237ff;

#balance-container {
  margin-top: 20px;
  font-size: 16px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;

#balance-container div {
  flex: 0 0 24%;
  margin: 0.4em;
  box-sizing: border-box;

#balance-container img {
  width: 100%;
  height: auto;



                import { TatumSDK, Network, Ethereum } from "";

document.addEventListener("DOMContentLoaded", async () => {
  const tatum = await TatumSDK.init<Ethereum>({ network: Network.ETHEREUM });
  const addressInput = document.getElementById('address');
  const balanceContainer = document.getElementById('balance-container');
  const totalNFTs = document.getElementById('total-nfts');

  // Function to fetch and display NFTs
  const fetchAndDisplayNFTs = async () => {
    try {
      // Fetch NFTs in the collection
      const balance = await tatum.nft.getNftsInCollection({
        collectionAddress: [addressInput.value],

      // Display the total number of NFTs found
      totalNFTs.textContent = `Total Number of NFTs Found: ${}`;

      // Sort the array so NFTs without metadata images are at the end
      const sortedBalanceData =, b) => (b.metadata && b.metadata.image) ? 1 : -1);

      // Remove previous entries
      balanceContainer.innerHTML = '';

      // Create a new entry for each NFT
      sortedBalanceData.forEach(nft => {
        const entry = document.createElement('div');
        const image = document.createElement('img');
        const name = document.createElement('p');
        // Create a new Image object
        const imgObj = new Image();

        // Set a loading image
        image.src = ''; // Use any loading image or gif you prefer

        imgObj.onload = function() {
          // Once the image is loaded, replace the source of the image element
          image.src = imgObj.src;

        imgObj.onerror = function() {
          // If there is an error loading the image, replace the source with the unavailable image
          image.src = '';

        // If there is a metadata image, load the image
        if (nft.metadata && nft.metadata.image) {
          imgObj.src = nft.metadata.image;
        } else {
          // If there is no metadata image, set the image as not available
          image.src = '';

        // If there is a metadata name, use it. Otherwise, use 'Name not given'
        name.textContent = nft.metadata && ? : 'Name not given';
    } catch (error) {
      console.error("Error fetching NFTs:", error);
      // Handle errors here

  // Initial call to fetch and display NFTs

  // Add event listener to the button
  const button = document.getElementById("check-balance");
  button.addEventListener("click", fetchAndDisplayNFTs);