def message_decode()

in amazon_kclpy/dispatch.py [0:0]

• 12 lines of code
• 3 McCabe index (conditional complexity)

def message_decode(json_dict):
    """
    Translates incoming JSON commands into MessageDispatch classes

    :param dict json_dict: a dictionary of JSON data

    :return: an object that can be used to dispatch the received JSON command
    :rtype: amazon_kclpy.messages.MessageDispatcher

    :raises MalformedAction: if the JSON object is missing action, or an appropriate serializer for that
        action can't be found
    """
    try:
        action = json_dict["action"]
    except KeyError as key_error:
        raise MalformedAction("Action {json_dict} was expected to have key {key!s}".format(json_dict=json_dict,
                                                                                           key=key_error))
    try:
        serializer = _serializers[action]
    except KeyError:
        raise MalformedAction("Received an action which couldn't be understood. Action was '{action}' -- Allowed {keys}"
                              .format(action=action, keys=_format_serializer_names()))

    return serializer(json_dict)