ADC Advanced Policy Expressions

MQTT_PROTOCOL_T

June 28, 2023

Contributed by:

Models the MQTT message types

This topic lists the expressions that are provided by this class.

AUTH

Operates on MQTT AUTH message

Returns: mqtt_auth_t

COMMAND

Return the MQTT command type

Returns: mqtt_command_e

CONNACK

Operates on MQTT CONNACK message

Returns: mqtt_connack_t

CONNECT

Operates on MQTT CONNECT message

Returns: mqtt_connect_t

DISCONNECT

Operates on MQTT Disconnect message

Returns: mqtt_disconnect_t

FROM_CLIENT

Returns true if the MQTT message is received from Client

Returns: bool_at

FROM_SERVER

Returns true if the MQTT message is received from Server

Returns: bool_at

HEADER

Return the MQTT fixed header

Returns: mqtt_header_t

MESSAGE_LENGTH

Return the length of the MQTT message

Returns: num_at

NEW_CONNACK (uint errcode)

Creates a new MQTT CONNACK message based on error code. The admin must make sure that the error code being configured is valid as per the protocol version.

Parameters``:

errcode- Error Code

Returns: text_t

PUBACK

Operates on MQTT PUBACK message.

Returns: mqtt_puback_t

PUBCOMP

Operates on MQTT PUBCOMP message.

Returns: mqtt_pubcomp_t

PUBLISH

Operates on MQTT PUBLISH message.

Returns: mqtt_publish_t

PUBREC

Operates on MQTT PUBREC message.

Returns: mqtt_pubrec_t

PUBREL

Operates on MQTT PUBREL message.

Returns: mqtt_pubrel_t

SUBACK

Operates on MQTT SUBACK message.

Returns: mqtt_suback_t

SUBSCRIBE

Operates on MQTT SUBSCRIBE message.

Returns: mqtt_subscribe_t

UNSUBACK

Operates on MQTT UNSUBACK message

Returns: mqtt_unsuback_t

UNSUBSCRIBE

Operates on MQTT UNSUBSCRIBE message

Returns: mqtt_unsubscribe_t

VERSION

Return the MQTT protocol version

Returns: num_at

The official version of this content is in English. Some of the Cloud Software Group documentation content is machine translated for your convenience only. Cloud Software Group has no control over machine-translated content, which may contain errors, inaccuracies or unsuitable language. No warranty of any kind, either expressed or implied, is made as to the accuracy, reliability, suitability, or correctness of any translations made from the English original into any other language, or that your Cloud Software Group product or service conforms to any machine translated content, and any warranty provided under the applicable end user license agreement or terms of service, or any other agreement with Cloud Software Group, that the product or service conforms with any documentation shall not apply to the extent that such documentation has been machine translated. Cloud Software Group will not be held responsible for any damage or issues that may arise from using machine-translated content.

Was this helpful

MQTT_PROTOCOL_T

June 28, 2023

Contributed by:

June 28, 2023

Contributed by:

MQTT_PROTOCOL_T

In this article