generated: '2026-07-24'
method: searched
spec_type: Webhooks
source: >-
  https://www.health-samurai.io/docs/aidbox/modules/topic-based-subscriptions,
  https://www.health-samurai.io/docs/aidbox/overview/release-notes
note: >-
  Aidbox exposes an event surface via FHIR Topic-Based Subscriptions (R4B/R5 Subscriptions
  Backport) and Aidbox-native SubscriptionTopic + AidboxTopicDestination. No standalone
  AsyncAPI document is published, so this captures the webhook/streaming catalog. NEVER
  fabricated - destinations are drawn verbatim from the documentation and release notes.
event_model:
  standard: FHIR Subscriptions (topic-based) + Aidbox SubscriptionTopic
  trigger: Changes (create/update/delete) to FHIR resources matching a SubscriptionTopic.
  payload: FHIR R4B/R5 SubscriptionStatus notification Bundle (id-only, full-resource, or empty).
channels:
- type: rest-hook
  detail: HTTP(S) webhook POST to a subscriber endpoint (classic FHIR rest-hook channel).
- type: websocket
  detail: WebSocket delivery channel.
destinations:
  description: Aidbox-native AidboxTopicDestination sinks for event delivery beyond rest-hook.
  sinks:
  - kafka
  - webhook
  - Amazon SNS
  - AWS EventBridge
  - Google BigQuery
  - Databricks Delta table
  - Google Cloud Pub/Sub
  custom: Custom AidboxTopicDestination code can access both previous and current resource versions.
security:
  note: Subscription endpoints authenticated per Aidbox Client/AccessPolicy; destinations use their own cloud credentials.
docs: https://www.health-samurai.io/docs/aidbox/modules/topic-based-subscriptions