Server-side tracking for revenue attribution

DataFast automatically tracks and attributes your revenue to the right marketing channels. When you attribute revenue on the server side, you get the most accurate data.

1. Connect your Payment Provider

Go to your website settings in DataFast and follow the steps to connect your Stripe/LemonSqueezy account.

2. Pass Metadata during Checkout

💳 Stripe

Pass metadata with visitorId and sessionId (cookies from DataFast) when creating a checkout session:

// app/api/create-checkout/route.js
import { cookies } from 'next/headers';

export async function POST() {
  const cookieStore = cookies();
  
  const session = await stripe.checkout.sessions.create({
    line_items: [...],
    mode: 'payment',
    metadata: {
      visitorId: cookieStore.get('datafast_visitor_id')?.value,
      sessionId: cookieStore.get('datafast_session_id')?.value
    }
  });
  
  return new Response(JSON.stringify({ sessionId: session.id }), {
    status: 200,
    headers: { 'Content-Type': 'application/json' }
  });
}

🍋 LemonSqueezy

Pass custom with visitorId and sessionId (cookies from DataFast) when creating a checkout session:

// app/api/create-checkout/route.js
import { cookies } from 'next/headers';

export async function POST() {
  const cookieStore = cookies();
  
  const { data, error } = await createCheckout({
    storeId,
    variantId,
    {
      productOptions: { ... },
      checkoutData: {
        ...,
        custom: {
          visitorId: cookieStore.get('datafast_visitor_id')?.value,
          sessionId: cookieStore.get('datafast_session_id')?.value
        }
      }
    }
  });

Once connected and cookie data is properly passed, DataFast will automatically:

• Track all payments from your Stripe/LemonSqueezy account
• Attribute revenue to the correct marketing channels

No webhook setup is required - DataFast handles everything automatically once you connect your Stripe account and pass the cookie data during checkout.