publish ¶

def publish(
    self,
    topic: "capo_iot_data_plane.types.topic.Topic",
    *,
    config_overrides: Optional[IoTDataPlaneClientConfig] = None,
    qos: Optional["capo_iot_data_plane.types.qos.Qos"] = None,
    retain: Optional["capo_iot_data_plane.types.retain.Retain"] = None,
    payload: Optional["capo_iot_data_plane.types.payload.Payload"] = None,
    user_properties: Optional[
        "capo_iot_data_plane.types.synthesized_json_user_properties.SynthesizedJsonUserProperties"
    ] = None,
    payload_format_indicator: Optional[
        "capo_iot_data_plane.types.payload_format_indicator.PayloadFormatIndicator"
    ] = None,
    content_type: Optional[
        "capo_iot_data_plane.types.content_type.ContentType"
    ] = None,
    response_topic: Optional[
        "capo_iot_data_plane.types.response_topic.ResponseTopic"
    ] = None,
    correlation_data: Optional[
        "capo_iot_data_plane.types.correlation_data.CorrelationData"
    ] = None,
    message_expiry: Optional[
        "capo_iot_data_plane.types.message_expiry.MessageExpiry"
    ] = None,
) -> None:
    """<p>Publishes an MQTT message.</p> <p>Requires permission to access the <a href="https://docs.aws.amazon.com/service-authorization/latest/reference/list_awsiot.html#awsiot-actions-as-permissions">Publish</a> action.</p> <p>For more information about MQTT messages, see <a href="http://docs.aws.amazon.com/iot/latest/developerguide/mqtt.html">MQTT Protocol</a> in the IoT Developer Guide.</p> <p>For more information about messaging costs, see <a href="http://aws.amazon.com/iot-core/pricing/#Messaging">Amazon Web Services IoT Core pricing - Messaging</a>.</p>

    Args:
        topic: <p>The name of the MQTT topic.</p>
        qos: <p>The Quality of Service (QoS) level. The default QoS level is 0.</p>
        retain: <p>A Boolean value that determines whether to set the RETAIN flag when the message is published.</p> <p>Setting the RETAIN flag causes the message to be retained and sent to new subscribers to the topic.</p> <p>Valid values: <code>true</code> | <code>false</code> </p> <p>Default value: <code>false</code> </p>
        payload: <p>The message body. MQTT accepts text, binary, and empty (null) message payloads.</p> <p>Publishing an empty (null) payload with <b>retain</b> = <code>true</code> deletes the retained message identified by <b>topic</b> from Amazon Web Services IoT Core.</p>
        user_properties: <p>A JSON string that contains an array of JSON objects. If you don’t use Amazon Web Services SDK or CLI, you must encode the JSON string to base64 format before adding it to the HTTP header. <code>userProperties</code> is an HTTP header value in the API.</p> <p>The following example <code>userProperties</code> parameter is a JSON string which represents two User Properties. Note that it needs to be base64-encoded:</p> <p> <code>[{"deviceName": "alpha"}, {"deviceCnt": "45"}]</code> </p>
        payload_format_indicator: <p>An <code>Enum</code> string value that indicates whether the payload is formatted as UTF-8. <code>payloadFormatIndicator</code> is an HTTP header value in the API.</p>
        content_type: <p>A UTF-8 encoded string that describes the content of the publishing message.</p>
        response_topic: <p>A UTF-8 encoded string that's used as the topic name for a response message. The response topic is used to describe the topic which the receiver should publish to as part of the request-response flow. The topic must not contain wildcard characters.</p>
        correlation_data: <p>The base64-encoded binary data used by the sender of the request message to identify which request the response message is for when it's received. <code>correlationData</code> is an HTTP header value in the API.</p>
        message_expiry: <p>A user-defined integer value that represents the message expiry interval in seconds. If absent, the message doesn't expire. For more information about the limits of <code>messageExpiry</code>, see <a href="https://docs.aws.amazon.com/general/latest/gr/iot-core.html#message-broker-limits">Amazon Web Services IoT Core message broker and protocol limits and quotas </a> from the Amazon Web Services Reference Guide.</p>

    Raises:
        capo_iot_data_plane.errors.internal_failure_exception.InternalFailureException: <p>An unexpected error has occurred.</p>
        capo_iot_data_plane.errors.invalid_request_exception.InvalidRequestException: <p>The request is not valid.</p>
        capo_iot_data_plane.errors.method_not_allowed_exception.MethodNotAllowedException: <p>The specified combination of HTTP verb and URI is not supported.</p>
        capo_iot_data_plane.errors.throttling_exception.ThrottlingException: <p>The rate exceeds the limit.</p>
        capo_iot_data_plane.errors.unauthorized_exception.UnauthorizedException: <p>You are not authorized to perform this operation.</p>
        capo_iot_data_plane.errors.UnknownServiceError: The service returned an error code this client does not model.
    """

    def _handler(
        req: "OperationRequest[capo_iot_data_plane.types.publish_request.PublishRequest]",
    ) -> OperationResponse[None]:
        import capo_iot_data_plane._operations.iot_moonraker_service.publish

        output, http_response = (
            capo_iot_data_plane._operations.iot_moonraker_service.publish.publish(
                req.options, req.input
            )
        )
        return OperationResponse(output=output, response=http_response)

    interceptors_, options_ = self.operation_options(
        config_overrides, OperationLogging("Publish")
    )
    input_: capo_iot_data_plane.types.publish_request.PublishRequest = {
        "topic": topic
    }
    if qos is not None:
        input_["qos"] = qos
    if retain is not None:
        input_["retain"] = retain
    if payload is not None:
        input_["payload"] = payload
    if user_properties is not None:
        input_["user_properties"] = user_properties
    if payload_format_indicator is not None:
        input_["payload_format_indicator"] = payload_format_indicator
    if content_type is not None:
        input_["content_type"] = content_type
    if response_topic is not None:
        input_["response_topic"] = response_topic
    if correlation_data is not None:
        input_["correlation_data"] = correlation_data
    if message_expiry is not None:
        input_["message_expiry"] = message_expiry

    response = execute_pipeline(
        OperationRequest(input=input_, options=options_),
        handler=_handler,
        interceptors=list(interceptors_),
    )
    response.response.close()
    return response.output