mqtt-rs

Fully implements the MQTT 3.1.1 specification for reliable messaging, as confirmed by the README's reference to the official standard, ensuring correctness in packet handling.

Offers structured packet types like PublishPacket and VariablePacket, leveraging Rust's type system to prevent protocol errors, as demonstrated in the usage example with encode/decode operations.

Implements QoS levels including packet identifiers for reliable delivery, shown with QoSWithPacketIdentifier in the code snippet, enabling precise control over message guarantees.

Includes TopicName type for safe topic handling in publish-subscribe patterns, preventing invalid topic strings and enhancing security, as seen in the PublishPacket creation example.