Kajabi Affiliate Program: Complete Integration Guide | AffiliateBase

// Example: Next.js API route for Kajabi webhooks
import { headers } from 'next/headers';
import crypto from 'crypto';
import { AffiliateBase } from '@affiliatebase/sdk';

const affiliateBase = new AffiliateBase({
  apiKey: process.env.AFFILIATEBASE_API_KEY!,
});

export async function POST(request: Request) {
  const body = await request.text();
  const signature = headers().get('x-kajabi-signature')!;
  
  // Verify webhook signature
  const expectedSignature = crypto
    .createHmac('sha256', process.env.KAJABI_WEBHOOK_SECRET!)
    .update(body)
    .digest('hex');
  
  if (signature !== expectedSignature) {
    return new Response('Invalid signature', { status: 401 });
  }
  
  const event = JSON.parse(body);
  
  // Handle different event types
  switch (event.type) {
    case 'order.created':
      await affiliateBase.trackConversion({
        affiliateId: event.data.order.metadata?.affiliateId,
        type: event.data.order.product_type === 'course' ? 'course_enrollment' : 'product_purchase',
        amount: event.data.order.total,
        currency: event.data.order.currency,
        customerId: event.data.order.customer_id,
        metadata: {
          product_id: event.data.order.product_id,
          product_name: event.data.order.product_name,
          product_type: event.data.order.product_type,
          order_id: event.data.order.id,
        },
      });
      break;
      
    case 'subscription.created':
      await affiliateBase.trackConversion({
        affiliateId: event.data.subscription.metadata?.affiliateId,
        type: 'subscription',
        amount: event.data.subscription.price,
        currency: event.data.subscription.currency,
        customerId: event.data.subscription.customer_id,
        subscriptionId: event.data.subscription.id,
      });
      break;
      
    case 'enrollment.created':
      await affiliateBase.trackConversion({
        affiliateId: event.data.enrollment.metadata?.affiliateId,
        type: 'course_enrollment',
        amount: event.data.enrollment.price,
        currency: event.data.enrollment.currency,
        customerId: event.data.enrollment.customer_id,
        metadata: {
          course_id: event.data.enrollment.course_id,
          course_name: event.data.enrollment.course_name,
        },
      });
      break;
  }
  
  return new Response(JSON.stringify({ received: true }), { status: 200 });
}