Class PublishRequest

    • Method Detail

      • topic

        public final String topic()

        The name of the MQTT topic.

        Returns:
        The name of the MQTT topic.
      • qos

        public final Integer qos()

        The Quality of Service (QoS) level. The default QoS level is 0.

        Returns:
        The Quality of Service (QoS) level. The default QoS level is 0.
      • retain

        public final Boolean retain()

        A Boolean value that determines whether to set the RETAIN flag when the message is published.

        Setting the RETAIN flag causes the message to be retained and sent to new subscribers to the topic.

        Valid values: true | false

        Default value: false

        Returns:
        A Boolean value that determines whether to set the RETAIN flag when the message is published.

        Setting the RETAIN flag causes the message to be retained and sent to new subscribers to the topic.

        Valid values: true | false

        Default value: false

      • payload

        public final SdkBytes payload()

        The message body. MQTT accepts text, binary, and empty (null) message payloads.

        Publishing an empty (null) payload with retain = true deletes the retained message identified by topic from Amazon Web Services IoT Core.

        Returns:
        The message body. MQTT accepts text, binary, and empty (null) message payloads.

        Publishing an empty (null) payload with retain = true deletes the retained message identified by topic from Amazon Web Services IoT Core.

      • userProperties

        public final String userProperties()

        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. userProperties is an HTTP header value in the API.

        The following example userProperties parameter is a JSON string which represents two User Properties. Note that it needs to be base64-encoded:

        [{"deviceName": "alpha"}, {"deviceCnt": "45"}]

        Returns:
        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. userProperties is an HTTP header value in the API.

        The following example userProperties parameter is a JSON string which represents two User Properties. Note that it needs to be base64-encoded:

        [{"deviceName": "alpha"}, {"deviceCnt": "45"}]

      • payloadFormatIndicator

        public final PayloadFormatIndicator payloadFormatIndicator()

        An Enum string value that indicates whether the payload is formatted as UTF-8. payloadFormatIndicator is an HTTP header value in the API.

        If the service returns an enum value that is not available in the current SDK version, payloadFormatIndicator will return PayloadFormatIndicator.UNKNOWN_TO_SDK_VERSION. The raw value returned by the service is available from payloadFormatIndicatorAsString().

        Returns:
        An Enum string value that indicates whether the payload is formatted as UTF-8. payloadFormatIndicator is an HTTP header value in the API.
        See Also:
        PayloadFormatIndicator
      • payloadFormatIndicatorAsString

        public final String payloadFormatIndicatorAsString()

        An Enum string value that indicates whether the payload is formatted as UTF-8. payloadFormatIndicator is an HTTP header value in the API.

        If the service returns an enum value that is not available in the current SDK version, payloadFormatIndicator will return PayloadFormatIndicator.UNKNOWN_TO_SDK_VERSION. The raw value returned by the service is available from payloadFormatIndicatorAsString().

        Returns:
        An Enum string value that indicates whether the payload is formatted as UTF-8. payloadFormatIndicator is an HTTP header value in the API.
        See Also:
        PayloadFormatIndicator
      • contentType

        public final String contentType()

        A UTF-8 encoded string that describes the content of the publishing message.

        Returns:
        A UTF-8 encoded string that describes the content of the publishing message.
      • responseTopic

        public final String responseTopic()

        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.

        Returns:
        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.
      • correlationData

        public final String correlationData()

        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. correlationData is an HTTP header value in the API.

        Returns:
        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. correlationData is an HTTP header value in the API.
      • toString

        public final String toString()
        Returns a string representation of this object. This is useful for testing and debugging. Sensitive data will be redacted from this string using a placeholder value.
        Overrides:
        toString in class Object