Junior — Middle

Can you explain the main principles of the HTTP protocol version 1.x?

sobes.tech AI

Answer from AI

HTTP 1.x is an application layer protocol for transmitting hypertext on the internet. The main principles of operation:

Client-server model: the client (e.g., browser) sends requests, the server responds.
Text-based protocol: requests and responses are transmitted as readable text.
Request structure: method (GET, POST, etc.), URL, protocol version, headers, and body.
Response structure: status code (e.g., 200 OK), headers, and body.
Support for connection status: HTTP/1.0 opened a new connection for each request, HTTP/1.1 introduced persistent connections (keep-alive), allowing multiple requests over a single TCP connection.
Lack of built-in compression and encryption: additional protocols (e.g., HTTPS) are used for this.

Example of a simple HTTP request:

GET /index.html HTTP/1.1
Host: example.com
Connection: keep-alive

The server might respond like this:

HTTP/1.1 200 OK
Content-Type: text/html
Content-Length: 1256

<html>...</html>