Webhook Subscriptions & Event Routing
Register HTTP callback URLs to receive real-time JSON webhooks whenever resources change in your session. Filter by specific entity events (posts.created, payment_intent.succeeded) or category-level wildcards (posts.*).
Event Trigger & Signing
Sandbox mutations generate event payloads signed with HMAC-SHA256 secrets.
Asynchronous Queue Delivery
Dispatches HTTP POST to destination URLs with X-Playground-Signature headers.
Exponential Backoff Retry
5xx errors and timeouts trigger automated retries (attempts 1-3 with jitter).
Interactive Webhook Workbench
Select a preset subscription configuration or query existing session webhooks:
Order & Payment Sync
Supported Event Catalog
The Playground API publishes standardized events across all core domain entities. Subscriptions can target exact event strings or category-level wildcard prefixes:
Content & Post Events
posts.createdTriggered on POST /postsposts.updatedTriggered on PUT/PATCH /posts/:idposts.deletedTriggered on DELETE /posts/:id
Payments & Financial Events
payment_intent.createdIntent initializedpayment_intent.succeededPayment capturedpayment_intent.payment_failedPayment declined
User & Auth Events
auth.loginJWT issued for userauth.registeredNew user account createdusers.updatedProfile attribute mutation
Wildcards & Synthetic Events
*Catches every eventposts.*All post mutationstest.pingAd-hoc synthetic ping
Standard Webhook Envelope & Handler
Dispatched requests carry a standard JSON body and diagnostic HTTP headers (X-Playground-Signature, X-Playground-Event, X-Playground-Delivery):