webhook-handler-patterns

What problem does it solve?

Webhook integrations are prone to security risks and duplicate processing due to retries. This Skill provides a concrete pattern to verify signatures before parsing payloads, parse after verification, and handle events idempotently, with robust error handling and retry strategies across Express, Next.js, and FastAPI.

Core Features & Use Cases

• Verify-first, parse-second, idempotent-third processing sequence to prevent duplicates and ensure security.
• Framework-specific guidance for Express, Next.js, and FastAPI with raw body handling and middleware order.
• Patterns for error handling, retry logic, and observability to diagnose webhook issues in production.

Quick Start

Use this Skill to structure a Stripe-like webhook route so that the raw body is preserved for signature verification, the payload is parsed after verification, and duplicates are avoided through idempotent handling.