WebSocket is a protocol that enables real-time, bidirectional communication between clients and servers over a single TCP connection. Unlike traditional HTTP, which is request-response based, WebSocket allows for persistent connections, making it ideal for applications requiring low-latency data exchange.

Key Features 🌐

  • Full-duplex Communication
    Both client and server can send data at the same time without waiting for responses.
  • Low Latency
    Optimized for real-time applications like chat, gaming, and live updates.
  • Stateful Connection
    Maintains a connection state, reducing overhead compared to repeated HTTP requests.
  • Cross-Origin Support
    Allows communication between different domains with proper headers.

How It Works 📡

  1. Handshake
    Begins with an HTTP request升级 to WebSocket protocol.
    WebSocket_handshake
  2. Data Transmission
    Messages are sent in text or binary format.
    WebSocket_data_transmission
  3. Connection Closure
    Either party can terminate the connection gracefully.

Use Cases 💬

  • Live chat applications
  • Online gaming
  • Real-time analytics
  • Remote control systems

For deeper technical details or implementation examples, check out our WebSocket Implementation Guide. 📚