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After you deploy a model into production using Amazon SageMaker hosting services, your client applications use this API to get inferences from the model hosted at the specified endpoint.
For an overview of Amazon SageMaker, see How It Works.
Amazon SageMaker strips all POST headers except those supported by the API. Amazon SageMaker might add additional headers. You should not rely on the behavior of headers outside those enumerated in the request syntax.
Calls to InvokeEndpoint are authenticated by using Amazon Web Services Signature
Version 4. For information, see Authenticating
Requests (Amazon Web Services Signature Version 4) in the Amazon S3 API Reference.
A customer's model containers must respond to requests within 60 seconds. The model itself can have a maximum processing time of 60 seconds before responding to invocations. If your model is going to take 50-60 seconds of processing time, the SDK socket timeout should be set to be 70 seconds.
Endpoints are scoped to an individual account, and are not public. The URL does not contain the account ID, but Amazon SageMaker determines the account ID from the authentication token that is supplied by the caller.
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 BeginInvokeEndpoint and EndInvokeEndpoint.
Namespace: Amazon.SageMakerRuntime
Assembly: AWSSDK.SageMakerRuntime.dll
Version: 3.x.y.z
public abstract Task<InvokeEndpointResponse> InvokeEndpointAsync( InvokeEndpointRequest request, CancellationToken cancellationToken )
Container for the necessary parameters to execute the InvokeEndpoint service method.
A cancellation token that can be used by other objects or threads to receive notice of cancellation.
| Exception | Condition |
|---|---|
| InternalDependencyException | Your request caused an exception with an internal dependency. Contact customer support. |
| InternalFailureException | An internal failure occurred. |
| ModelErrorException | Model (owned by the customer in the container) returned 4xx or 5xx error code. |
| ModelNotReadyException | Either a serverless endpoint variant's resources are still being provisioned, or a multi-model endpoint is still downloading or loading the target model. Wait and try your request again. |
| ServiceUnavailableException | The service is unavailable. Try your call again. |
| ValidationErrorException | Inspect your request and try again. |
.NET Core App:
Supported in: 3.1
.NET Standard:
Supported in: 2.0
.NET Framework:
Supported in: 4.5