Skip to main content
Pillar8 uses webhooks to receive transaction outcomes and improve decision quality.

​
Order Completed Webhook

POST /api/shopify/webhooks/order-completed

​
Purpose

Webhooks serve three key functions:
  • Capture the selected payment method
  • Record the transaction outcome
  • Feed data into the learning loop

​
Example Payload

{
  "order_id": "12345",
  "checkout_token": "abc123",
  "selected_fop": "paypal",
  "status": "paid",
  "amount": 85,
  "currency": "EUR"
}

​
Headers

Shopify-style webhook authentication using HMAC signature.

​
Shopify Webhooks Used

The Shopify integration uses multiple webhook events to reconstruct the full transaction lifecycle and improve decision accuracy:
  • orders/paid
  • order_transactions/create
  • tender_transactions/create
  • checkouts/create
Webhooks are required for learning and optimization. No changes to payment processing are required.