agentjacker.github.io/goal.html at main · agentjacker/agentjacker.github.io · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>OpenSea Listing Example</title>
  <script src="https://cdn.jsdelivr.net/npm/ethers@5.6.9/dist/ethers.umd.min.js"></script>
  <script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
</head>
<body>
  <h1>Create Listing on OpenSea</h1>

  <form id="listingForm">
    <label for="tokenAddress">Token Address:</label>
    <input type="text" id="tokenAddress" name="tokenAddress" required>
    <br>

    <label for="tokenId">Token ID:</label>
    <input type="text" id="tokenId" name="tokenId" required>
    <br>

    <label for="listingAmount">Listing Amount (in ETH):</label>
    <input type="text" id="listingAmount" name="listingAmount" required>
    <br>

    <button type="submit">Create Listing</button>
  </form>

  <script>
    // Replace with your own Alchemy API key
    const ALCHEMY_API_KEY = 'eG3jW0KFR0_DslPgFc011OnLfBLQvFME';
    const provider = new ethers.providers.JsonRpcProvider(`https://eth-sepolia.g.alchemy.com/v2/${ALCHEMY_API_KEY}`, {
      name: 'sepolia',
      chainId: 11155111
    });

    document.getElementById('listingForm').addEventListener('submit', async (event) => {
      event.preventDefault();

      // Connect to MetaMask wallet
      if (typeof window.ethereum !== 'undefined') {
        try {
          await window.ethereum.request({ method: 'eth_requestAccounts' });
          const web3Provider = new ethers.providers.Web3Provider(window.ethereum, "any");
          const signer = web3Provider.getSigner();

          const tokenAddress = document.getElementById('tokenAddress').value;
          const tokenId = document.getElementById('tokenId').value;
          const listingAmount = document.getElementById('listingAmount').value;

          // Ensure we're connected to Sepolia network (Sepolia has chainId 11155111)
          const network = await web3Provider.getNetwork();
          if (network.chainId !== 11155111) {
            alert("Please connect to the Sepolia testnet.");
            return;
          }

          // Get address directly from the signer, avoiding ENS resolution
          const account = await signer.getAddress();

          // Create listing data
          const listingData = {
            offerer: account,
            offer: [
              {
                itemType: 2, // ERC721
                token: tokenAddress,
                identifierOrCriteria: tokenId,
                startAmount: ethers.utils.parseUnits(listingAmount, "ether").toString(),
                endAmount: ethers.utils.parseUnits(listingAmount, "ether").toString()
              }
            ],
            consideration: [
              {
                itemType: 0, // Native - Ether
                token: ethers.constants.AddressZero,
                identifierOrCriteria: 0,
                startAmount: ethers.utils.parseUnits("0.025", "ether").toString(), // OpenSea Fee (2.5%)
                endAmount: ethers.utils.parseUnits("0.025", "ether").toString(),
                recipient: "0xOpenSeaFeeRecipientAddress" // OpenSea fee recipient
              },
              {
                itemType: 2,
                token: tokenAddress,
                identifierOrCriteria: tokenId,
                startAmount: ethers.utils.parseUnits(listingAmount, "ether").toString(),
                endAmount: ethers.utils.parseUnits(listingAmount, "ether").toString(),
                recipient: account
              }
            ],
            startTime: Math.floor(Date.now() / 1000),
            endTime: Math.floor(Date.now() / 1000) + 86400, // 1 day later
            orderType: 0,
            zone: ethers.constants.AddressZero,
            zoneHash: ethers.constants.HashZero,
            salt: ethers.BigNumber.from(ethers.utils.randomBytes(32)).toString(),
            conduitKey: "0x0000007b02230091a7ed01230072f7006a004d60a8d4e71d599b8104250f0000",
            totalOriginalConsiderationItems: 2,
            counter: 0
          };

          // Get the domain data for signing
          const domain = {
            name: 'OpenSea',
            version: '1.6',
            chainId: 11155111, // Sepolia Testnet chain ID
            verifyingContract: "0x0000000000000068f116a894984e2db1123eb395" // OpenSea Seaport contract
          };

          // Get the types for the signature
          const types = {
            OrderComponents: [
              { name: 'offerer', type: 'address' },
              { name: 'offer', type: 'OfferItem[]' },
              { name: 'consideration', type: 'ConsiderationItem[]' },
              { name: 'startTime', type: 'uint256' },
              { name: 'endTime', type: 'uint256' },
              { name: 'orderType', type: 'uint8' },
              { name: 'zone', type: 'address' },
              { name: 'zoneHash', type: 'bytes32' },
              { name: 'salt', type: 'uint256' },
              { name: 'conduitKey', type: 'bytes32' },
              { name: 'totalOriginalConsiderationItems', type: 'uint256' },
              { name: 'counter', type: 'uint256' }
            ],
            OfferItem: [
              { name: 'itemType', type: 'uint8' },
              { name: 'token', type: 'address' },
              { name: 'identifierOrCriteria', type: 'uint256' },
              { name: 'startAmount', type: 'uint256' },
              { name: 'endAmount', type: 'uint256' }
            ],
            ConsiderationItem: [
              { name: 'itemType', type: 'uint8' },
              { name: 'token', type: 'address' },
              { name: 'identifierOrCriteria', type: 'uint256' },
              { name: 'startAmount', type: 'uint256' },
              { name: 'endAmount', type: 'uint256' },
              { name: 'recipient', type: 'address' }
            ]
          };

          // Sign the listing data using EIP-712 typed data signing
          const signature = await signer._signTypedData(domain, types, listingData);

          // Make the API request to OpenSea, adding the signature to the request body
          const response = await axios.post(
            'https://api.opensea.io/api/v2/orders/sepolia/seaport/listings',
            { ...listingData, signature },
            {
              headers: {
                'accept': 'application/json',
                'content-type': 'application/json'
              }
            }
          );
          console.log("Listing created successfully:", response.data);
        } catch (error) {
          console.error("Error creating listing:", error);
        }
      } else {
        console.error("MetaMask is not installed.");
      }
    });
  </script>
</body>
</html>