uNetworking/uWebSockets
UWebSockets
uWebSockets is a high-performance networking engine providing an HTTP web server and a WebSocket server framework. It implements a multi-threaded event loop architecture to deploy isolated application instances across multiple CPU cores and includes an SSL/TLS network layer for secure, encrypted communication.
The project features a dedicated WebSocket pub/sub engine for distributing messages to specific groups of connected clients. It optimizes network throughput through syscall corking to reduce kernel overhead and employs payload compression to minimize data transfer sizes.
The system covers broad networking capabilities including URL routing, incremental response streaming, and heartbeat-based liveness monitoring. It also provides backpressure control to manage outgoing data flow and allows custom user data to be attached directly to sockets for state management.
Native C++ networking code is interfaced with the Node.js script engine via bindings.
Features
- WebSocket Servers - Provides a high-performance server implementation for managing persistent, bidirectional WebSocket communication channels.
- High-Performance Web Services - Provides a high-performance server optimized for high-throughput web requests and real-time communication.
- Thread Scaling - Deploys isolated application instances across multiple threads to maximize multi-core CPU utilization.
- Pub-Sub Messaging - Includes a built-in publish and subscribe mechanism to distribute messages to specific groups of connected clients.
- WebSocket Services - Implements a high-performance framework for real-time bidirectional WebSocket communication.
- Event Loops - Uses an event-loop architecture to distribute network load across multiple CPU cores.
- Encrypted Connection Handlers - Provides a dedicated layer for managing TLS handshakes and securing network communication.
- Network Security - Provides transport-layer security through the implementation of SSL and TLS encryption for network communication.
- TLS/SSL Configurations - Implements an encryption layer using certificates and keys to enforce secure SSL/TLS network communication.
- HTTP Request Handling - Implements a system for mapping URL patterns and HTTP methods to specific handler functions.
- High-Performance HTTP Servers - Builds secure and standards-compliant servers that handle large volumes of HTTP requests and data streams.
- HTTP Servers - Functions as a core server engine that maps URL patterns to handler functions for processing HTTP requests.
- URL Routing - Provides a URL router that recognizes wildcards and parameters to direct traffic to specific handlers.
- Incremental Data Streaming - Processes large data payloads in chunks to minimize memory consumption during high-volume transfers.
- Heartbeat Monitors - Tracks connection health by sending periodic pings and closing unresponsive sockets.
- Backpressure Controllers - Manages the flow of outgoing data using drain events to prevent memory overflow from buffered information.
- Syscall Corking - Optimizes network throughput by grouping multiple outgoing messages into a single system call to minimize kernel transitions.
- Data Compression - Reduces bandwidth usage by employing shared or dedicated compressors for WebSocket payloads.
- Pub-Sub Systems - Includes a built-in pub-sub engine for distributing real-time messages to specific groups of connected clients.
- Syscall Corking - Groups multiple outgoing messages into a single system call to reduce the overhead of frequent kernel transitions.
- Node.js Network Libraries - Interfaces high-performance native C++ networking code with the Node.js runtime environment.
- Connection Health Monitors - Monitors connection health using heartbeat pings and automatically closes sockets that exceed timeout periods.
- Response Streaming - Sends large data payloads incrementally using callbacks to prevent memory spikes.
- Networking - High-performance WebSocket and HTTP server.
- Language Toolkits - Standards-compliant web server for high-demand applications.
- Network Frameworks - High-performance WebSocket and HTTP server implementation.
- Netzwerk-Bibliotheken - Lightweight and scalable WebSocket and HTTP server.
- Web and File Transfer Tools - High-performance WebSocket and HTTP server implementation.
- Real Time Communication - High-performance WebSocket server and client library.
