Server-Side Events Overview

User scans QR Code
    ↓
Lands on yoursite.com/?scnv=7ad26d4f-...
    ↓
SDK saves scan_session_id to localStorage
    ↓
User completes a purchase form
    ↓
Browser sends scan_session_id to your checkout API
    ↓
Your server sends a purchase event with that scan_session_id
    ↓
Scanova attributes the purchase to the QR scan

// Read from SDK (browser-side)
// Note: _scnv is the SDK's internal storage key — structure may change.
// Use this pattern only if no higher-level SDK method is available.
const scanSessionId = localStorage.getItem('_scnv')
  ? JSON.parse(localStorage.getItem('_scnv')).sid
  : null;

// Include in your API call to your backend
await fetch('/api/checkout', {
  method: 'POST',
  body: JSON.stringify({ ...orderData, scan_session_id: scanSessionId })
});