Webhooks enable real-time communication between services. When events happen, you notify interested parties immediately instead of waiting for them to poll. Here's how to build reliable webhook systems.
Receiving Webhooks
Basic Endpoint
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Queue-Based Processing
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Sending Webhooks
Webhook Delivery Service
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Retry with Exponential Backoff
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Event Fan-Out
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Subscription Management
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Best Practices
Receiving:
✓ Always verify signatures
✓ Respond quickly (200 OK)
✓ Process asynchronously
✓ Implement idempotency
✓ Handle duplicates gracefully
Sending:
✓ Sign all webhooks
✓ Include event type in headers
✓ Retry with exponential backoff
✓ Set reasonable timeouts
✓ Provide delivery logs
✓ Allow re-sending failed webhooks
Conclusion
Webhooks enable real-time integrations without polling. Verify signatures for security, process asynchronously for reliability, and implement retries for resilience.
Both sending and receiving require careful handling of failures—plan for them from the start.