Creem Checkout API

Creem Checkout API Integration

💡 Make sure your Creem account is connected.

Pass the affonso_referral cookie as metadata to your Creem Checkout session:

import { cookies } from 'next/headers';
import axios from 'axios';

// Get Affonso referral cookie (Next.js 15+)
// For Next.js 13-14: const cookieStore = cookies(); (without await)
const cookieStore = await cookies();
const affonsoReferral = cookieStore.get('affonso_referral')?.value || '';

// Create checkout session with Creem
const response = await axios.post(
  'https://api.creem.io/v1/checkouts',
  {
    request_id: 'your-request-id',
    product_id: 'prod_your-product-id',
    // ... your existing config
    metadata: {
      affonso_referral: affonsoReferral, // Add this line
    },
  },
  {
    headers: {
      'x-api-key': process.env.CREEM_API_KEY,
    },
  }
);

Testing

Visit your site with ?atp=test (our test affiliate parameter)
Check browser DevTools → Application → Cookies → look for affonso_referral
Trigger your checkout flow locally
Check your server logs/terminal - the Creem session should show:
```
metadata: { affonso_referral: "cmdhq6ayf..." }
```
If the metadata appears in your logs, you're all set!