Handle the Payment Result

1. Customer clicks "Pay Now"
        ↓
2. Payment is processed
        ↓
3. Ozura marks the session as "completed" ← Automatic!
        ↓
4. Customer is redirected to your successUrl with payment details

https://yoursite.com/success?success=true&sessionId=session_xxx&transactionId=txn_abc123&amount=25.00&currency=USD&cardLastFour=4242&cardBrand=visa&firstName=John&lastName=Doe&email=john@example.com

// Parse URL parameters
const params = new URLSearchParams(window.location.search);
const sessionId = params.get('sessionId');
const transactionId = params.get('transactionId');
const amount = params.get('amount');

// Parse metadata (JSON-encoded)
let metadata = {};
try {
  metadata = JSON.parse(params.get('metadata') || '{}');
} catch (e) {}

console.log('Order ID:', metadata.orderId);

https://yoursite.com/error?success=false&errorCode=SYSTEM_ERROR&error=Payment+service+unavailable&cancelUrl=https://yoursite.com/cart

app.get('/success', async (req, res) => {
  const { sessionId } = req.query;
  
  // Check session status with Checkout API
  // No headers required - session ID acts as access token
  const response = await fetch(`https://checkout.ozura.io/api/sessions/${sessionId}`);
  const data = await response.json();
  
  if (data.data.session.status === 'completed') {
    // ✅ Session verified as completed
    // ⚠️ YOUR RESPONSIBILITY: Fulfill the order with your business logic
    await updateOrderStatus(sessionId, 'paid'); // YOUR implementation
    res.render('success');
  } else {
    // Not confirmed - don't fulfill
    res.redirect('/error?error=Payment+not+confirmed');
  }
});