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subscription-creation-schema.md

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title Azure Event Grid subscription schema
description This article describes the properties for subscribing to an event with Azure Event Grid. Event Grid subscription schema.
ms.topic reference
ms.date 09/28/2021

Event Grid subscription schema

To create an Event Grid subscription, you send a request to the Create Event subscription operation. Use the following format:

PUT /subscriptions/{subscription-id}/resourceGroups/{group-name}/providers/{resource-provider}/{resource-type}/{resource-name}/Microsoft.EventGrid/eventSubscriptions/{event-type-definitions}?api-version=2018-01-01

For example, to create an event subscription for a storage account named examplestorage in a resource group named examplegroup, use the following format:

PUT /subscriptions/{subscription-id}/resourceGroups/examplegroup/providers/Microsoft.Storage/storageaccounts/examplestorage/Microsoft.EventGrid/eventSubscriptions/{event-type-definitions}?api-version=2018-01-01

The Event Subscription name must be 3-64 characters in length and can only contain a-z, A-Z, 0-9, and "-". The article describes the properties and schema for the body of the request.  

Event subscription properties

Property Type Description
destination object The object that defines the endpoint.
filter object An optional field for filtering the types of events.

destination object

Property Type Description
endpointType string The type of endpoint for the subscription (webhook/HTTP, Event Hub, or queue).
endpointUrl string The destination URL for events in this event subscription.

filter object

Property Type Description
includedEventTypes array Match when the event type in the event message is an exact match to one of these event type names. Raises an error when event name does not match the registered event type names for the event source. Default matches all event types.
subjectBeginsWith string A prefix-match filter to the subject field in the event message. The default or empty string matches all.
subjectEndsWith string A suffix-match filter to the subject field in the event message. The default or empty string matches all.
isSubjectCaseSensitive string Controls case-sensitive matching for filters.
enableAdvancedFilteringOnArrays boolean Enables using arrays for keys in advanced filtering. For more information, see Advanced filtering.

Example subscription schema

{
  "properties": {
    "destination": {
      "endpointType": "webhook",
      "properties": {
          "endpointUrl": "https://example.azurewebsites.net/api/HttpTriggerCSharp1?code=VXbGWce53l48Mt8wuotr0GPmyJ/nDT4hgdFj9DpBiRt38qqnnm5OFg=="
      }
    },
    "filter": {
      "includedEventTypes": [ "Microsoft.Storage.BlobCreated", "Microsoft.Storage.BlobDeleted" ],
      "subjectBeginsWith": "/blobServices/default/containers/mycontainer/blobs/log",
      "subjectEndsWith": ".jpg",
      "isSubjectCaseSensitive ": "true"
    }
  }
}

Next steps