Key Takeaways
- Webhooks enable real-time event-driven architecture: your system reacts instantly to external events instead of polling.
- Always verify webhook signatures to prevent attackers from sending fake events to your endpoint.
- Webhooks must be idempotent: process the same event twice without creating duplicate records or side effects.
Webhook Implementation Best Practices
Webhooks seem simple but require careful engineering for production reliability:
- Verify signatures: Every webhook provider (Stripe, Shopify, GitHub) signs payloads with a secret. Always verify before processing.
- Respond quickly: Return a 200 status within 5 seconds. Process the event asynchronously (queue it) if processing takes longer.
- Handle retries: Providers retry failed webhooks. Ensure your handler is idempotent (safe to process the same event multiple times).
- Log everything: Store raw webhook payloads for debugging. Webhook issues are notoriously difficult to reproduce without logs.
- Use a webhook management tool: Services like Svix and Hookdeck simplify receiving, verifying, and queuing webhooks.
Frequently Asked Questions
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