Communication application with Android Device using SignalR Technology
Article link address : https://www.tahasivaci.com/android/android-signalr-chat-with-c-and-web-api
If you want to find out what APIs the above methods come up with, follow the link.
Source Code : https://github.com/tahasvc/SignalRChatServerClientApp
Article link address : https://www.tahasivaci.com/signalr/signalr-chat-server-and-chat-client-application