webhook-handler-patterns

To verify webhook signatures in Express, you must preserve the raw body and enforce a verify-then-parse sequence. This prevents security risks by validating the sender before any payload processing occurs.

Next.js webhook signature verification fails when middleware parses the body before verification. You must configure raw body handling to preserve the original payload for accurate signature validation.

The best way to handle duplicate webhook deliveries is idempotent processing. By enforcing a verify-then-parse-then-idempotent sequence, you ensure retried events do not result in duplicate side effects.

Implement retry logic and error handling for FastAPI webhook routes by following structured patterns for observability and error strategies. This allows you to diagnose and recover from failed webhook deliveries in production.

Yes, this pattern works for Stripe-like webhook routes. It structures your handler to preserve the raw body for signature verification, parse after validation, and avoid duplicates through idempotent handling.

You should use idempotency in your webhook processing sequence whenever providers implement automatic retries. Idempotent handling prevents duplicate processing of the same event, ensuring data consistency.