AI Webhook Handler Generator

Without signature verification, anyone can send fake webhook requests to your endpoint, potentially triggering unauthorized actions like order fulfillment or account upgrades. Signature verification ensures the webhook was actually sent by the expected service using a shared secret. Our generator implements each provider's specific verification method correctly.

The handler always returns a 200 status code after receiving a valid webhook, even if business logic processing fails. This prevents the provider from retrying the webhook endlessly. Internal errors are logged and can be retried through your own queue system. The Full feature level includes queue-based processing for reliability and idempotency checks to handle duplicates.

Webhook providers may send the same event multiple times due to network issues or their retry logic. Idempotent handlers detect and skip duplicate events using the event ID, preventing actions like charging a customer twice or sending duplicate notifications. The Full feature level stores processed event IDs and checks before processing.

We generate handlers optimized for Stripe with their event verification SDK, GitHub with HMAC-SHA256 verification, Slack with request signing, Twilio with request validation, SendGrid with event webhook verification, and Shopify with HMAC verification. For custom webhooks, it generates a generic HMAC verification handler that works with most providers.

Events are routed to specific handler functions using a map pattern or switch statement. Each event type like payment_intent.succeeded or customer.subscription.updated maps to a dedicated async function that handles that specific event. This keeps the code organized and makes it easy to add new event handlers without modifying the routing logic.