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Returns metadata for faces in the specified collection. This metadata includes information such as the bounding box coordinates, the confidence (that the bounding box contains a face), and face ID. For an example, see Listing Faces in a Collection in the Amazon Rekognition Developer Guide.
This operation requires permissions to perform the rekognition:ListFaces action.
This is an asynchronous operation using the standard naming convention for .NET 4.5 or higher. For .NET 3.5 the operation is implemented as a pair of methods using the standard naming convention of BeginListFaces and EndListFaces.
Namespace: Amazon.Rekognition
Assembly: AWSSDK.Rekognition.dll
Version: 3.x.y.z
public virtual Task<ListFacesResponse> ListFacesAsync( ListFacesRequest request, CancellationToken cancellationToken )
Container for the necessary parameters to execute the ListFaces service method.
A cancellation token that can be used by other objects or threads to receive notice of cancellation.
| Exception | Condition |
|---|---|
| AccessDeniedException | You are not authorized to perform the action. |
| InternalServerErrorException | Amazon Rekognition experienced a service issue. Try your call again. |
| InvalidPaginationTokenException | Pagination token in the request is not valid. |
| InvalidParameterException | Input parameter violated a constraint. Validate your parameter before calling the API operation again. |
| ProvisionedThroughputExceededException | The number of requests exceeded your throughput limit. If you want to increase this limit, contact Amazon Rekognition. |
| ResourceNotFoundException | The resource specified in the request cannot be found. |
| ThrottlingException | Amazon Rekognition is temporarily unable to process the request. Try your call again. |
.NET Core App:
Supported in: 3.1
.NET Standard:
Supported in: 2.0
.NET Framework:
Supported in: 4.5