23 lines
1.2 KiB
Markdown
23 lines
1.2 KiB
Markdown
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---
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obj: concept
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wiki: https://en.wikipedia.org/wiki/WebSocket
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rfc: https://datatracker.ietf.org/doc/html/rfc6455
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website: https://websockets.spec.whatwg.org
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---
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# WebSocket
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WebSockets provide a bidirectional communication channel over a single, long-lived connection. This enables real-time, low-latency data exchange between a client and a server.
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## WebSocket Protocol
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### 1. **WebSocket Handshake:**
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The WebSocket handshake is an [HTTP](HTTP.md)-based protocol that establishes a connection between the client and server. Once established, the connection switches to the WebSocket protocol.
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### 2. **WebSocket Frames:**
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Messages in WebSockets are sent as frames. Frames can be text, binary, or control frames used for connection management.
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## Usage and Benefits
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### 1. **Real-Time Applications:**
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WebSockets are ideal for real-time applications like live chats, online gaming, financial trading, and collaborative tools.
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### 2. **Reduced Latency:**
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The persistent connection minimizes latency compared to traditional [HTTP](HTTP.md), making WebSockets suitable for applications requiring low-latency communication.
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### 3. **Efficient Data Transfer:**
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WebSockets use a compact binary frame format, reducing the overhead associated with text-based protocols.
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