WebSockets

2.

Core Concepts of WebSockets

2.1.

Full-Duplex Communication

2.1.1.

Definition and Characteristics

2.1.2.

Comparison with Half-Duplex Communication

2.2.

Persistent Connection over a Single TCP Socket

2.2.1.

Lifecycle of a WebSocket Connection

2.2.2.

Resource Efficiency

2.3.

Low-Latency Data Transfer

2.3.1.

Factors Affecting Latency

2.3.2.

Real-Time Data Flow

2.4.

Reduced Network Overhead

2.4.1.

Elimination of Repeated Handshakes

2.4.2.

Efficient Use of Bandwidth

2.5.

Comparison with HTTP, Polling, and SSE

2.5.1.

Protocol Differences

2.5.2.

Performance Considerations

2.5.3.

Suitability for Different Use Cases

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3. The WebSocket Protocol (RFC 6455)