# ResponseStream
<a name="API_runtime_ResponseStream"></a>

A stream of payload parts. Each part contains a portion of the response for a streaming inference request.

## Contents
<a name="API_runtime_ResponseStream_Contents"></a>

 ** InternalStreamFailure **   <a name="sagemaker-Type-runtime_ResponseStream-InternalStreamFailure"></a>
The stream processing failed because of an unknown error, exception or failure. Try your request again.  
Type: Exception  
HTTP Status Code:   
Required: No

 ** ModelStreamError **   <a name="sagemaker-Type-runtime_ResponseStream-ModelStreamError"></a>
 An error occurred while streaming the response body. This error can have the following error codes:    
ModelInvocationTimeExceeded  
The model failed to finish sending the response within the timeout period allowed by Amazon SageMaker AI.  
StreamBroken  
The Transmission Control Protocol (TCP) connection between the client and the model was reset or closed.
Type: Exception  
HTTP Status Code:   
Required: No

 ** PayloadPart **   <a name="sagemaker-Type-runtime_ResponseStream-PayloadPart"></a>
A wrapper for pieces of the payload that's returned in response to a streaming inference request. A streaming inference response consists of one or more payload parts.   
Type: [PayloadPart](API_runtime_PayloadPart.md) object  
Required: No

## See Also
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For more information about using this API in one of the language-specific Amazon SDKs, see the following:
+  [Amazon SDK for C\+\+](https://docs.amazonaws.cn/goto/SdkForCpp/runtime.sagemaker-2017-05-13/ResponseStream) 
+  [Amazon SDK for Java V2](https://docs.amazonaws.cn/goto/SdkForJavaV2/runtime.sagemaker-2017-05-13/ResponseStream) 
+  [Amazon SDK for Ruby V3](https://docs.amazonaws.cn/goto/SdkForRubyV3/runtime.sagemaker-2017-05-13/ResponseStream)