Module v5 

MQTT v5.0 Implementation

Complete implementation of MQTT 5.0 with modern features and enhancements.

Key Features

• Enhanced authentication and authorization mechanisms
• User properties for extensible metadata
• Reason codes for detailed error reporting
• Shared subscriptions for load balancing
• Message expiry and topic aliasing
• Flow control and quota management

Structs

Auth

Represents an MQTT AUTH packet.

AuthProperties

Represents the properties of the Auth packet.

ConnAck

Represents an MQTT CONNACK packet.

ConnAckProperties

Represents the properties of the ConnAck packet.

Connect

Represents an MQTT Connect packet

ConnectProperties

Represents the properties of a Connect packet in MQTT v5.

Disconnect

Represents an MQTT v5 Disconnect packet.

DisconnectProperties

Represents properties of a Disconnect packet

PingReq

Represents an MQTT PingReq (Ping Request) packet.

PingResp

Represents an MQTT PingResp (Ping Response) packet.

PubAck

Represents an MQTT PubAck packet

PubAckProperties

Represents an MQTT PubAckProperties packet

PubComp

Represents an MQTT PubComp packet

PubCompProperties

Represents an MQTT PubCompProperties packet

PubRec

Represents an MQTT PubRec packet

PubRecProperties

Represents an MQTT PubRecProperties packet

PubRel

Represents an MQTT PubRel packet

PubRelProperties

Represents an MQTT PubRelProperties packet

Publish

Represents an MQTT v5 Publish packet

PublishProperties

Represents properties of a Publish packet in MQTT v5

SubAck

Represents an MQTT v5 SubAck packet

SubAckProperties

Represents an MQTT SubAckProperties packet

Subscribe

Represents an MQTT v5 Subscribe packet

SubscribeProperties

Properties specific to Subscribe packets

TopicOptionFilter

Represents a single topic filter with subscription options

TopicOptionFilters

Collection of topic filters for a subscription

UnsubAck

Represents an MQTT v5 UnsubAck packet

UnsubAckProperties

Represents an MQTT UnsubAckProperties packet

Unsubscribe

Represents an MQTT v5 Unsubscribe packet

UnsubscribeProperties

Properties specific to Unsubscribe packets

Will

Represents a Last Will and Testament (LWT) message in MQTT v5.

WillProperties

Represents the properties of a Will message in MQTT v5.

Enums

Packet

Represents all possible MQTT v5 packet types

ReasonCode

Represents all possible reason codes in MQTT v5 protocol.

RetainHandling

Controls how retained messages are handled for subscriptions