URL — where does it belong in the structure of an HTTP request?

URL (Uniform Resource Locator) in the structure of an HTTP request refers to the request line, which indicates the address of the resource on the server. In an HTTP request, the URL is presented in the first line (Request Line) after the method and before the protocol version.

Example of the first line of an HTTP request:

GET /path/resource?query=123 HTTP/1.1

Here, /path/resource?query=123 is the part of the URL that includes the path and query parameters. The full URL usually consists of the scheme (http/https), host, port, and path, but in an HTTP request, the client only sends the path and parameters, as the host is specified in the Host header.

Thus, the URL in an HTTP request is the part of the Request Line that specifies the particular resource the client is accessing.