What to choose for writing c# server side?

Question

C++ / C#

I am writing a simple WPF messenger application with the following features:
-Personal message
-"User writes a message..."
-File transfer

I want to write a server for it, which would process data / store / add, etc.
You log in to the application, and it loads a list of chats from the server, and further work with them.

There are many implementation methods on the Internet: TCP, Web Socket, WCF, Web API. Confused. What is better to choose?

Answer 1

for the messenger rather Socket. there are examples of real-time chats on SignalR. good base
ps but ideally it would be worth sketching out prototypes based on different technologies. useful, and you yourself would figure out the pros and cons