webhook-integration

To verify Dodo Payments webhooks, validate the HMAC signature and timestamp from request headers using your DODO_PAYMENTS_WEBHOOK_SECRET to block unauthorized or spoofed calls before parsing the JSON payload.

Handle duplicate webhook events by processing them idempotently using the unique webhook-id header, ensuring retried requests do not trigger duplicate downstream business logic for payment or subscription updates.

Yes, this webhook integration supports FastAPI and Next.js backends, alongside Express.js and Go, to parse JSON event payloads, verify authenticity, and trigger downstream business logic for payment lifecycle updates.

The best way to prevent replay attacks on payment webhooks is to enforce timestamp freshness checks alongside HMAC signature validation, rejecting outdated requests before routing events to your subscription or payment handlers.

Route Dodo Payments subscription events by parsing the event.type field from the JSON payload and directing common types like subscription.active, subscription.cancelled, and payment.succeeded to matching downstream business logic handlers.

Your webhook endpoint should respond with a 200 status quickly to acknowledge receipt, preventing premature timeouts and retries from Dodo Payments while your retry-safe handlers process the event asynchronously.