How do I route different webhook events to different services?

A common way is to put a small webhook router in front of your services:

1. Receive the webhook at one endpoint

   • Example: POST /webhooks/provider
   • Verify signature/authentication first.

2. Inspect the event type in the payload or headers

   • Many providers send something like event_type, type, or a header such as X-Event-Type.

3. Map event types to target services

   • Example:
     • payment.succeeded → Billing Service
     • user.created → CRM Service
     • ticket.closed → Support Service

4. Forward the event

   • Either:
     • Synchronous proxy: router immediately calls the right internal service
     • Async queue/pub-sub: router publishes to a queue/topic, and each service consumes what it needs

5. Acknowledge fast

   • Return 2xx quickly to the webhook sender so they don’t retry unnecessarily.

Simple routing example

if event.type == "payment.succeeded":
    send_to(billing_service, event)
elif event.type == "user.created":
    send_to(crm_service, event)
else:
    send_to(default_service, event)

Better pattern for reliability

Use a message broker:

• Webhook receiver → validate → publish to Kafka/RabbitMQ/SQS
• Services subscribe to relevant topics
• Easier retries, decoupling, and scaling

Things to watch

• Idempotency: webhooks may be delivered more than once
• Retries: handle transient failures
• Ordering: if needed, route by key (e.g., user ID)
• Dead-letter queue: capture failed events
• Security: verify signatures and restrict internal endpoints

If you want, I can show you:

• a Node.js/Express example,
• a Python/FastAPI example, or
• an architecture diagram for routing webhooks.