Can you name the main types of headers used in HTTP requests?

The main types of headers in HTTP requests can be divided into several categories:

1. General headers — apply to both requests and responses, for example:

   • Cache-Control — cache management
   • Connection — connection management

2. Request headers — transmit information about the client and request:

   • Host — specifies the server's domain name
   • User-Agent — information about the client application
   • Accept — data types the client is willing to accept
   • Authorization — authentication data
   • Cookie — session data

3. Entity headers — describe the message body:

   • Content-Type — content type
   • Content-Length — length of content

Example of using headers in Python with the requests library:

import requests

headers = {
    'User-Agent': 'MyApp/1.0',
    'Accept': 'application/json',
    'Authorization': 'Bearer token123'
}
response = requests.get('https://api.example.com/data', headers=headers)
print(response.status_code)