DescribeCollection - Amazon Rekognition


Describes the specified collection. You can use DescribeCollection to get information, such as the number of faces indexed into a collection and the version of the model used by the collection for face detection.

For more information, see Describing a collection.

Request Syntax

{ "CollectionId": "string" }

Request Parameters

The request accepts the following data in JSON format.


The ID of the collection to describe.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 255.

Pattern: [a-zA-Z0-9_.\-]+

Required: Yes

Response Syntax

{ "CollectionARN": "string", "CreationTimestamp": number, "FaceCount": number, "FaceModelVersion": "string" }

Response Elements

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.


The Amazon Resource Name (ARN) of the collection.

Type: String


The number of milliseconds since the Unix epoch time until the creation of the collection. The Unix epoch time is 00:00:00 Coordinated Universal Time (UTC), Thursday, 1 January 1970.

Type: Timestamp


The number of faces that are indexed into the collection. To index faces into a collection, use IndexFaces .

Type: Long

Valid Range: Minimum value of 0.


The version of the face model that's used by the collection for face detection.

For more information, see Model versioning.

Type: String



You are not authorized to perform the action.

HTTP Status Code: 400


Amazon Rekognition experienced a service issue. Try your call again.

HTTP Status Code: 500


Input parameter violated a constraint. Validate your parameter before calling the API operation again.

HTTP Status Code: 400


The number of requests exceeded your throughput limit. If you want to increase this limit, contact Amazon Rekognition.

HTTP Status Code: 400


The resource specified in the request cannot be found.

HTTP Status Code: 400


Amazon Rekognition is temporarily unable to process the request. Try your call again.

HTTP Status Code: 500

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: