What do we specify in the request header?

HTTP request headers specify metadata about the request, client, and server. Key headers include:

• Host: The domain name of the server to which the request is directed.
• User-Agent: Information about the client (browser, operating system).
• Accept: Data types (MIME types) that the client is willing to accept in response.
• Content-Type: The content type of the request body (if present).
• Content-Length: The size of the request body in bytes (if present).
• Authorization: Credentials for client authentication.
• Cookie: Cookies stored on the client related to the requested domain.
• Referer: URL of the previous page from which the request was sent.
• Connection: Connection management (e.g., Keep-Alive).
• If-Modified-Since: Date and time used for conditional requests (caching).

# Example headers in a Python requests request
headers = {
    "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36",
    "Accept": "application/json",
    "Content-Type": "application/json"
}