WebSocket
WebSocket is a network protocol that enables persistent, bidirectional, full-duplex communication between endpoints over a single TCP connection.
Go in Practice, Second Edition
WebSocket is a protocol that provides persistent, bidirectional communication between a client and server over a single connection.
- How it is used
- Enables targeted real-time, bidirectional communication when polling feels stale or inefficient.
- How deep it goes
- Explains persistent TCP connections, HTTP upgrade handling, and a working chat implementation, while deferring advanced package features.
- Examples
- Demonstrates a multi-client chat application with real-time messages and active-member updates.
- What you can do after
- Build it from scratch as a small Go chat service with upgraded HTTP connections and multiplexed client messaging.
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Python Concurrency with asyncio
WebSocket is a network communication standard that provides a persistent, bidirectional connection between a client and server.
- How it is used
- Replaces inefficient HTTP polling when applications need timely server-pushed updates.
- How deep it goes
- Explains persistent connections and implements endpoint callbacks, but does not descend into protocol internals.
- Examples
- Uses a live user counter, a Starlette endpoint, and a browser JavaScript client.
- What you can do after
- Build it with Starlette to broadcast changing application data without repeated HTTP requests.
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Related concepts
- pollingalternative to · Polling is the repeated checking or querying of a resource, system, or condition, often at intervals, to detect data, events, or state changes.
- Starletteused by · Starlette is a lightweight Python ASGI web framework and toolkit for building asynchronous web applications and services.
- streaminguses · Streaming is the incremental handling of a sequence of data items, including their processing, transfer, or consumption as they become available.
- server-sent eventsalternative to · Server-Sent Events is a web standard for streaming text-based event updates one way from a server to a client over an HTTP connection.
- HTTPuses · HTTP is a standardized application-layer protocol that defines request-and-response messages for transferring resource representations between networked systems.
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