Crate mqute_codec 

MQTT Packet Codec

This module provides packet construction and serialization/deserialization for MQTT protocol. It handles the binary representation of MQTT packets but does NOT include:

• Network I/O operations
• Protocol state management
• Session handling
• Quality of Service guarantees

Responsibilities

• Packet structure definitions for all MQTT versions (3.1, 3.1.1, 5.0)
• Encoding packets to wire format
• Decoding packets from wire format
• Basic protocol validation

Supported MQTT Versions

Version	Specification	Status	Notable Features
MQTT 3.1	MQTT 3.1	Full Support	Basic pub/sub, QoS 0-2
MQTT 3.1.1	MQTT 3.1.1	Full Support	Clean session, Last Will
MQTT 5.0	MQTT 5.0	Full Support	Properties, Enhanced Auth

Feature Highlights

• Multi-Version Support: Single API for all MQTT versions
• Zero-Copy Parsing: Maximizes performance by minimizing allocations
• Protocol Bridging: Tools for interoperability between versions
• Validation: Strict protocol compliance checking
• Async Ready: Works seamlessly with async runtimes

Modules

codec

Codec Implementation

protocol

Protocol Implementation

Enums

Error

Represents errors that can occur when working with the MQTT protocol.