Webhook Handler

Production-ready webhook receiver with signature verification, retry logic, and dead letter queue. Zero dependencies.

Part of the API Launchpad toolkit by CodeVault.

Features

• HMAC-SHA256 signature verification with timing-safe comparison
• Provider presets: Stripe, GitHub, SendGrid, or generic HMAC
• Event routing: map event types to Python handler functions
• Retry with exponential backoff and configurable jitter
• Dead letter queue: failed webhooks persisted to JSON files for review
• Idempotency: duplicate events automatically detected and skipped
• Zero dependencies — runs on Python stdlib only