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// Install: npm install @chainnox/sdk-node

import ChainNox from '@chainnox/sdk-node';

const chainnox = new ChainNox({
  apiKey: process.env.CHAINNOX_API_KEY,
  environment: 'production'
});

// 1. Create a wallet for user
const wallet = await chainnox.wallets.create({
  userId: 'user_123',
  blockchain: 'ethereum',
  label: 'User Main Wallet'
});

console.log(wallet.address); // 0x742d35Cc6634C0532925a3b...

// 2. Request crypto withdrawal
const withdrawal = await chainnox.withdrawals.create({
  userId: 'user_123',
  amount: '0.5',
  currency: 'ETH',
  toAddress: '0x742d35Cc6634C0532925a3b...',
  network: 'ethereum'
});

// 3. Handle deposit notification (webhook)
app.post('/webhook/deposit', async (req, res) => {
  const event = chainnox.webhooks.verify(req.body, req.headers);
  
  if (event.type === 'deposit.completed') {
    const { userId, amount, currency, txHash } = event.data;
    await creditUserBalance(userId, amount, currency);
    console.log(`Deposit received: ${amount} ${currency}`);
  }
  
  res.sendStatus(200);
});

<!-- Multi-Chain Wallet Widget -->
<iframe
  src="https://widgets.chainnox.com/wallet?userId=user_123"
  width="100%"
  height="600"
  frameborder="0"
  allow="clipboard-write"
  sandbox="allow-scripts allow-same-origin allow-forms"
></iframe>

<!-- Deposit Widget with QR Code -->
<iframe
  src="https://widgets.chainnox.com/deposit?userId=user_123&currencies=BTC,ETH,USDT"
  width="400"
  height="500"
  frameborder="0"
></iframe>

<!-- Withdrawal Widget -->
<iframe
  src="https://widgets.chainnox.com/withdraw?userId=user_123"
  width="400"
  height="600"
  frameborder="0"
></iframe>

<!-- Listen to widget events via postMessage -->
<script>
  window.addEventListener('message', (event) => {
    if (event.origin !== 'https://widgets.chainnox.com') return;
    
    // Handle widget events
    if (event.data.type === 'wallet_created') {
      console.log('Wallet address:', event.data.address);
    }
    
    if (event.data.type === 'deposit_received') {
      console.log('Deposit:', event.data.amount, event.data.currency);
    }
  });
</script>