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UJD Protocol
Tech / Software
Tech / SoftwareDepth 0 · Foundation

HTTP Request

A message sent from a client to a server asking for data or action

An HTTP request is the fundamental communication unit of the web. It includes a method (GET, POST, etc.), a URL, headers, and optionally a body. The server processes it and returns a response with a status code and data.

Mental modelClient → server intent transmission

Where you'll encounter this

  • Frontend-backend communication
  • API development
  • Web debugging tools (DevTools, Postman)
  • Microservices architecture

What breaks when this is misunderstood

  • Incorrect method usage (GET vs POST)
  • Missing headers causing auth failures
  • Malformed payloads
  • Unexpected server responses

Signals this concept is in play

  • Network tab in browser DevTools
  • API logs showing request/response cycles
  • HTTP status codes (200, 404, 500)
  • Request payloads and headers