Junior — Middle

Can you explain how the HTTP protocol works and its main data transfer principles?

sobes.tech AI

Answer from AI

HTTP (HyperText Transfer Protocol) is a protocol for data transfer over the internet, based on the client-server model.

Main principles:

The client (e.g., a browser) sends a request to the server, specifying the method (GET, POST, etc.), URL, and headers.
The server processes the request and returns a response with a status code (e.g., 200 — OK), headers, and a body (e.g., an HTML page).
The protocol is stateless — each request is independent, and the server does not store state between requests.

Example of a simple GET request:

GET /index.html HTTP/1.1
Host: example.com

The server responds:

HTTP/1.1 200 OK
Content-Type: text/html

<html>...</html>

Thus, HTTP provides a standardized way of exchanging information between the client and the server.