How can I make HTTP Digest authorization on QT for the server side of the application?

Question

Computer networks

I am making a Web Service in QT. I am doing the server side. How do I do HTTP Digest(RFC2617) authorization?
Those. I need to organize authorization on the server. The client that I have sends a request with a username and password. I need to accept this request and process it somehow.
I found the QAuthenticator class, but I don't really understand how to use it, or did I go the wrong way?