v1.86.0（2026年3月2日）

// Create a checkout session for a product with attached credits
const session = await client.checkoutSessions.create({
  product_cart: [
    {
      product_id: 'pdt_ai_pro_plan',
      quantity: 1,
    }
  ],
  customer: { email: 'customer@example.com' },
  return_url: 'https://yourapp.com/success'
});

// Send usage events that deduct credits automatically
await fetch('https://test.dodopayments.com/events/ingest', {
  method: 'POST',
  headers: {
    'Authorization': `Bearer ${process.env.DODO_API_KEY}`,
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    events: [{
      event_id: `gen_${Date.now()}`,
      customer_id: 'cus_abc123',
      event_name: 'ai.generation',
      timestamp: new Date().toISOString(),
      metadata: { model: 'gpt-4', tokens: 1500 }
    }]
  })
});