:doc:`Lambda <../../lambda>` / Client / send_durable_execution_callback_heartbeat

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send_durable_execution_callback_heartbeat
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.. py:method:: Lambda.Client.send_durable_execution_callback_heartbeat(**kwargs)

  

  Sends a heartbeat signal for a long-running callback operation to prevent timeout. Use this API to extend the callback timeout period while the external operation is still in progress.

  

  See also: `AWS API Documentation <https://docs.aws.amazon.com/goto/WebAPI/lambda-2015-03-31/SendDurableExecutionCallbackHeartbeat>`_  


  **Request Syntax**
  ::

    response = client.send_durable_execution_callback_heartbeat(
        CallbackId='string'
    )
    
  :type CallbackId: string
  :param CallbackId: **[REQUIRED]** 

    The unique identifier for the callback operation.

    

  
  
  :rtype: dict
  :returns: 
    
    **Response Syntax**

    
    ::

      {}
      
    **Response Structure**

    

    - *(dict) --* 
  
  **Exceptions**
  
  *   :py:class:`Lambda.Client.exceptions.InvalidParameterValueException`

  
  *   :py:class:`Lambda.Client.exceptions.TooManyRequestsException`

  
  *   :py:class:`Lambda.Client.exceptions.ServiceException`

  
  *   :py:class:`Lambda.Client.exceptions.CallbackTimeoutException`

  