Game Asset Tracker: Monitoring Game Assets

1.1 Game Asset Tracker Overview

Game Asset Tracker provides users and developers the capability to monitor and manage in-game assets across multiple blockchain-based games and metaverses. By leveraging blockchain technology and smart contracts, this tool enables real-time tracking and secure asset management for various types of in-game items, including NFTs, currencies, and other virtual goods.

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1.2 Code for Asset Tracking

1.2.1 Basic Setup for Game Asset Tracker

const Web3 = require('web3');
const web3 = new Web3('wss://mainnet.infura.io/ws/v3/YOUR_INFURA_PROJECT_ID');

// User's wallet address to track assets
const walletAddress = '0xUserWalletAddressHere';

1.2.2 Tracking NFT (ERC-721) Assets

const assetContractAddress = '0xAssetContractAddressHere';
const assetABI = [
  {
    "constant": true,
    "inputs": [{"name": "_owner", "type": "address"}],
    "name": "balanceOf",
    "outputs": [{"name": "balance", "type": "uint256"}],
    "type": "function"
  },
  {
    "constant": true,
    "inputs": [{"name": "_tokenId", "type": "uint256"}],
    "name": "ownerOf",
    "outputs": [{"name": "owner", "type": "address"}],
    "type": "function"
  }
];

const assetContract = new web3.eth.Contract(assetABI, assetContractAddress);

// Function to retrieve NFT ownership status
async function checkNFTOwnership(tokenId) {
  try {
    const owner = await assetContract.methods.ownerOf(tokenId).call();
    console.log(`NFT Token ID: ${tokenId} is owned by ${owner}`);
  } catch (error) {
    console.error("Error retrieving NFT ownership:", error);
  }
}

1.2.3 Tracking Fungible Tokens (ERC-20) for Game Currencies

const tokenContractAddress = '0xTokenContractAddressHere';
const tokenABI = [
  {
    "constant": true,
    "inputs": [{"name": "_owner", "type": "address"}],
    "name": "balanceOf",
    "outputs": [{"name": "balance", "type": "uint256"}],
    "type": "function"
  }
];

const tokenContract = new web3.eth.Contract(tokenABI, tokenContractAddress);

// Function to check the balance of a fungible token
async function checkTokenBalance() {
  try {
    const balance = await tokenContract.methods.balanceOf(walletAddress).call();
    console.log(`Token Balance: ${web3.utils.fromWei(balance, 'ether')} Tokens`);
  } catch (error) {
    console.error("Error fetching token balance:", error);
  }
}

1.2.4 Real-Time Asset Update with WebSocket

web3.eth.subscribe('newBlockHeaders', (error, block) => {
  if (error) console.error("Error on subscription:", error);
  else {
    console.log("New block received. Checking asset status...");
    checkNFTOwnership(1234); // Check NFT asset
    checkTokenBalance(); // Check ERC-20 token balance
  }
});

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1.3 API Integration

1.3.1 GET /assets/{asset_id}

curl -X GET "https://api.capsurelabs.com/assets/1234" \
  -H "Authorization: Bearer <token>"

1.3.2 GET /wallets/{wallet_id}/assets

curl -X GET "https://api.capsurelabs.com/wallets/0xYourWalletAddress/assets" \
  -H "Authorization: Bearer <token>"

1.3.3 WebSocket /assets/subscribe

{
  "type": "subscribe",
  "walletId": "0xYourWalletAddress",
  "assetId": "1234"
}