RTDN (Real-Time Developer Notifications)

Google's webhook for subscription events. Equivalent of Apple's ASSN.

How it works

• Play sends events to Google Cloud Pub/Sub topic
• Your backend subscribes to topic
• Events delivered as JWT-signed messages

Events you'll get

• SUBSCRIPTION_PURCHASED (initial buy)
• SUBSCRIPTION_RENEWED (auto-renewal)
• SUBSCRIPTION_CANCELED (user-initiated)
• SUBSCRIPTION_EXPIRED (grace period ended)
• SUBSCRIPTION_RECOVERED (came back after hold)
• SUBSCRIPTION_RESTARTED (resubscribed after expiry)
• SUBSCRIPTION_REVOKED (refund)
• SUBSCRIPTION_PAUSE_SCHEDULE_CHANGED
• And ~10 more