MQTT_HEADER_T

Last published : Oct 30, 2026
This class provides operations for describing the generic fields in all MQTT message types
This topic lists the expressions that are provided by this class.
  • IS_DUP
    Return true if DUP flag is set in the MQTT fixed header
Returns: bool_at
  • IS_RETAIN
    Return true if RETAIN flag is set in the MQTT fixed header
Returns: bool_at
  • QOS
    Return the QOS in the MQTT fixed header
Returns: num_at