How to deal with client-server applications

Question

C++ / C#

My task is to make the simplest multi-threaded server that receives data, processes it and sends it back. I have already seen a bunch of examples, read articles on Habré, but I still can’t figure out how to write my own and not redo other people’s examples. What can I read about creating client-server applications in a simpler and more detailed way, given that I am new to programming

Answer 1

Read about REST if you want to understand client-server applications.

Answer 2

There are quite simple examples, the question is what is the goal, the tool will depend on it, of which there are many:
Web services (soap, rest)
Socket server (TCP, UDP) Remoting server
(remoting)
based on a web service, or based on a Remoting server .
About the latter, literally 2 pages in the C # Bible book are perfectly painted, I highly recommend looking at it.