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HTTP

The request-and-response protocol of the web: a client asks for something, a server answers.

HTTP is a text-based request/response protocol over TCP (or QUIC): a request names a method and path with headers and an optional body, and the response carries a status code, headers and a body.

Examples

  • The greenhouse sensor at 192.168.1.37 sends POST /api/readings with the body {"t":21.5,"rh":64} to a laptop server on port 8000.

  • The server answers HTTP/1.1 201 Created, so the sensor knows the reading was stored.

See also

method status code TCP REST
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