chkr1011/MQTTnet
MQTTnet
MQTTnet is a .NET library providing a framework for implementing MQTT clients and brokers. It includes a broker implementation for hosting a central message hub that routes messages between connected clients and a client library for publishing and subscribing to messages.
The project supports both TCP and WebSocket transport layers, enabling secure data traffic through transport layer security. It allows for the development of custom middleware to intercept, transform, or validate messages as they pass through a server.
Capability areas include distributed message routing, persistent connection management with quality of service queuing, and security primitives for client credential validation and topic subscription restrictions.
Features
- Topic-Based Messaging - Implements high-performance topic-based message routing using trie structures for efficient wildcard resolution.
- Distributed Messaging - Provides a scalable framework for building asynchronous pub-sub systems across distributed clients.
- MQTT Message Brokers - Includes a full broker implementation that routes messages and maintains retained states.
- MQTT Message Handlers - Allows the development of specialized MQTT message handlers to intercept, transform, or validate data.
- MQTT Clients - Ships a comprehensive client library for publishing and subscribing to messages across different protocol versions.
- MQTT Frameworks - Provides a high-performance .NET framework for implementing full-featured MQTT clients and brokers.
- Session State Management - Tracks client connectivity and subscription status to manage session resumption and message queuing.
- Request Interception Middleware - Provides an architectural pipeline for intercepting and modifying messages before they reach the final handler.
- Protocol Packet Parsers - Transforms raw byte streams into structured protocol frames through a sequential processing pipeline.
- Connectivity Frameworks - Enables hardware sensors and controllers to publish data and receive remote commands in real time.
- MQTT Traffic Routing - Directs MQTT message traffic across active client connections using a distributed routing system.
- Persistent Network Connections - Maintains long-lived network connectivity and queues messages based on specified Quality of Service levels.
- Protocol-Agnostic Transport Layers - Decouples protocol logic from the network layer to support both TCP and WebSocket transports.
- Access Control Lists - Provides the ability to validate subscription requests and restrict access to specific topics based on client permissions.
- WebSocket Transports - Supports persistent bidirectional communication through both TCP sockets and WebSocket transports.
- MQTT Credential Validators - Validates client identities using IDs and credentials during the MQTT connection handshake.
- Secure Publish-Subscribe Messaging - Implements encrypted communication channels and access control for secure publish-subscribe messaging.
- Transport Layer Security - Implements transport layer security to encrypt data traffic over TCP and WebSocket connections.
- Non-Blocking Event Loops - Implements a non-blocking event loop to process network packets and dispatch events asynchronously.
- Messaging and Queuing - High-performance MQTT communication library.
Star history
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