in my Android app I have created a Socket.io client side(V2). My problem is that I couldnt any socket.io url which use v3 or higher.
For example these two url use socket.io under v3. ->
https://socketio-chat-h9jt.herokuapp.com/ or
https://socketio-whiteboard-zmx4.herokuapp.com/
Note: I dont know how to create server side. I am an new grad Android Developer. Thanks in advance.