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Glossary Web & HTTP

WebSocket

WebSocket is a protocol that keeps a single connection open between a browser and a server so both can send messages at any time.

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In more detail

A WebSocket starts as an ordinary HTTP request that asks to "upgrade" (status 101 Switching Protocols). After that, data flows both ways with very little overhead, which suits chat, live prices, collaborative editing and games. URLs begin with ws:// or, encrypted, wss://.

See also

  • Glossary HTTP
    HTTP (Hypertext Transfer Protocol) is the protocol browsers and servers use to request and send web pages, files and data.
  • Glossary API
    An API (application programming interface) is a defined way for one piece of software to ask another to do something or share data.
  • Cheat sheet HTTP Status Codes Cheat Sheet
    The HTTP status codes you will actually meet, grouped by class, with the pairs people confuse (401 vs 403.
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