Socket.IO
Socket.IO
Socket.IO is a JavaScript library for realtime web applications. It enables realtime, bi-directional communication between web clients and servers. It has two parts: a client-side library that runs in the browser, and a server-side library for Node.js. Both components have a nearly identical API. Like Node.js, it is event-driven. Socket.IO primarily uses the WebSocket protocol with polling as a fallback option, while providing the same interface. Although it can be used as a simple wrapper for WebSocket, it provides many more features, including broadcasting to multiple sockets, storing data associated with each client, and asynchronous I/O.
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Domain Rating
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Domain Authority
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Citation Level
2010
English, etc
Website Key Features
Realtime Communication
Enables realtime, bi-directional communication between web clients and servers.
Event-driven
Both client and server sides are event-driven, similar to Node.js.
WebSocket and Polling
Primarily uses WebSocket protocol with polling as a fallback option.
Broadcasting
Supports broadcasting to multiple sockets.
Client Data Storage
Allows storing data associated with each client.
Asynchronous I/O
Provides asynchronous I/O operations.
Cross-browser
Works across all modern web browsers.
Scalability
Designed to scale to multiple servers and clients.
Auto-reconnection
Automatically reconnects in case of disconnection.
Binary Support
Supports binary data transmission.
Multiplexing
Supports multiplexing, allowing for multiple communication channels over a single connection.
Room Support
Allows grouping clients into rooms for targeted communication.
Middleware Support
Supports middleware for processing requests and responses.
Similar Sites and Competitors
Additional information
License
MIT License
Repository
GitHub
Documentation
Comprehensive documentation available on the official website.
Community
Active community and support available through various channels including GitHub issues and Stack Overflow.
Compatibility
Compatible with all modern web browsers and Node.js environments.
Performance
Optimized for high performance and low latency communication.
Security
Provides mechanisms for secure communication, including support for HTTPS and WSS.
HTTP headers
Security headers report is a very important part of user data protection. Learn more about http headers for socket.io