Azure Cache for Redis — Event Grid events

asyncapi: 3.0.0
info:
  title: Azure Cache for Redis — Event Grid events
  version: '1.0'
  description: >-
    The four events Azure Cache for Redis publishes to Azure Event Grid. Derived by API
    Evangelist from Microsoft's published event catalog and payload samples at
    https://learn.microsoft.com/en-us/azure/event-grid/event-schema-azure-cache — Microsoft
    does not publish an AsyncAPI document for this surface. Event names, payload fields and
    example values are Microsoft's, verbatim; the AsyncAPI framing is ours.
    Subscribers receive these over a webhook (HTTP POST), an Event Hub, a Service Bus queue or
    topic, a storage queue, a relay hybrid connection, or an Azure Function.
  contact:
    name: Azure Cache for Redis documentation
    url: https://learn.microsoft.com/en-us/azure/azure-cache-for-redis/
x-generated-by: API Evangelist enrichment pipeline
x-generated-from: https://learn.microsoft.com/en-us/azure/event-grid/event-schema-azure-cache
x-method: derived
x-generated: '2026-09-17'
defaultContentType: application/json
servers:
  eventgrid:
    host: eventgrid.azure.net
    protocol: https
    description: >-
      Azure Event Grid. The publisher is the cache's own ARM resource ID, acting as an Event
      Grid system topic of type Microsoft.Cache.Redis; delivery is to whichever handler the
      subscriber registers.
channels:
  cache-events:
    address: '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Cache/Redis/{cacheName}'
    title: Azure Cache for Redis system topic
    description: The Event Grid system topic for one cache. Carries all four event types.
    parameters:
      subscriptionId:
        description: Azure subscription ID that owns the cache.
      resourceGroupName:
        description: Resource group that contains the cache.
      cacheName:
        description: Name of the cache.
    messages:
      patchingCompleted:
        $ref: '#/components/messages/PatchingCompleted'
      scalingCompleted:
        $ref: '#/components/messages/ScalingCompleted'
      importRDBCompleted:
        $ref: '#/components/messages/ImportRDBCompleted'
      exportRDBCompleted:
        $ref: '#/components/messages/ExportRDBCompleted'
operations:
  receiveCacheEvents:
    action: receive
    channel:
      $ref: '#/channels/cache-events'
    summary: Receive Azure Cache for Redis lifecycle events from Event Grid.
    messages:
    - $ref: '#/channels/cache-events/messages/patchingCompleted'
    - $ref: '#/channels/cache-events/messages/scalingCompleted'
    - $ref: '#/channels/cache-events/messages/importRDBCompleted'
    - $ref: '#/channels/cache-events/messages/exportRDBCompleted'
components:
  messages:
    PatchingCompleted:
      name: Microsoft.Cache.PatchingCompleted
      title: Patching completed
      summary: Triggered when patching is completed. Raised by a Redis update, not by a caller.
      payload:
        $ref: '#/components/schemas/CloudEvent'
      examples:
      - name: patchingCompleted
        payload:
          id: 9b87886d-21a5-4af5-8e3e-10c4b8dac73b
          type: Microsoft.Cache.PatchingCompleted
          source: /subscriptions/{subscription_id}/resourceGroups/{resource_group_name}/providers/Microsoft.Cache/Redis/{cache_name}
          data:
            name: PatchingCompleted
            timestamp: '2020-12-09T21:50:19.9995668+00:00'
            status: Succeeded
          subject: PatchingCompleted
          time: '2020-12-09T21:50:19.9995668+00:00'
          specversion: '1.0'
    ScalingCompleted:
      name: Microsoft.Cache.ScalingCompleted
      title: Scaling completed
      summary: >-
        Triggered when scaling is completed. Raised by Redis_Update changing the sku or shard
        count.
      payload:
        $ref: '#/components/schemas/CloudEvent'
      examples:
      - name: scalingCompleted
        payload:
          id: 9b87886d-21a5-4af5-8e3e-10c4b8dac73b
          type: Microsoft.Cache.ScalingCompleted
          source: /subscriptions/{subscription_id}/resourceGroups/{resource_group_name}/providers/Microsoft.Cache/Redis/{cache_name}
          data:
            name: ScalingCompleted
            timestamp: '2020-12-09T21:50:19.9995668+00:00'
            status: Succeeded
          subject: ScalingCompleted
          time: '2020-12-09T21:50:19.9995668+00:00'
          specversion: '1.0'
    ImportRDBCompleted:
      name: Microsoft.Cache.ImportRDBCompleted
      title: Import completed
      summary: Triggered when cache data is imported. Raised by Redis_ImportData.
      payload:
        $ref: '#/components/schemas/CloudEvent'
      examples:
      - name: importRDBCompleted
        payload:
          id: 9b87886d-21a5-4af5-8e3e-10c4b8dac73b
          type: Microsoft.Cache.ImportRDBCompleted
          source: /subscriptions/{subscription_id}/resourceGroups/{resource_group_name}/providers/Microsoft.Cache/Redis/{cache_name}
          data:
            name: ImportRDBCompleted
            timestamp: '2020-12-09T21:50:19.9995668+00:00'
            status: Succeeded
          subject: ImportRDBCompleted
          time: '2020-12-09T21:50:19.9995668+00:00'
          specversion: '1.0'
    ExportRDBCompleted:
      name: Microsoft.Cache.ExportRDBCompleted
      title: Export completed
      summary: Triggered when cache data is exported. Raised by Redis_ExportData.
      payload:
        $ref: '#/components/schemas/CloudEvent'
      examples:
      - name: exportRDBCompleted
        payload:
          id: 9b87886d-21a5-4af5-8e3e-10c4b8dac73b
          type: Microsoft.Cache.ExportRDBCompleted
          source: /subscriptions/{subscription_id}/resourceGroups/{resource_group_name}/providers/Microsoft.Cache/Redis/{cache_name}
          data:
            name: ExportRDBCompleted
            timestamp: '2020-12-09T21:50:19.9995668+00:00'
            status: Succeeded
          subject: ExportRDBCompleted
          time: '2020-12-09T21:50:19.9995668+00:00'
          specversion: '1.0'
  schemas:
    CloudEvent:
      type: object
      description: >-
        CloudEvents 1.0 envelope as Event Grid delivers it. Event Grid can also deliver the
        legacy Event Grid schema, in which `type` is `eventType`, `source` is `topic`, `time`
        is `eventTime`, and `dataVersion` / `metadataVersion` are present instead of
        `specversion`.
      required:
      - id
      - source
      - type
      - specversion
      - data
      properties:
        id:
          type: string
          description: Unique event identifier.
        source:
          type: string
          description: The ARM resource ID of the cache that raised the event.
        type:
          type: string
          enum:
          - Microsoft.Cache.PatchingCompleted
          - Microsoft.Cache.ScalingCompleted
          - Microsoft.Cache.ImportRDBCompleted
          - Microsoft.Cache.ExportRDBCompleted
        subject:
          type: string
          description: The event name, repeated.
        time:
          type: string
          format: date-time
        specversion:
          type: string
          const: '1.0'
        data:
          $ref: '#/components/schemas/CacheEventData'
    CacheEventData:
      type: object
      required:
      - name
      - timestamp
      - status
      properties:
        name:
          type: string
          description: The operation that completed, e.g. PatchingCompleted.
        timestamp:
          type: string
          format: date-time
          description: When the operation completed.
        status:
          type: string
          description: Outcome of the operation, e.g. Succeeded.