is there a way to know what Uri the apps on my phone connect to? there's one app on my phone that i need to know exactly what Uri it uses to connect to it's server. is there a way to find out how?

tl:dr - i'm not trying to hack or damage, and actually the app is developed by the company i started work for, and the guy before me wrote the Uri, but as he removed the source code when he left. Now my boss has only said to me "find it", and now as i'm extremely new to server stuff, i see no other way to recover it other than finding out what uri the app uses.
look for a software called wireshark
easy way look at your router maybe in
the support options to capture the network traffic to the router. On android maybe this app PacketCapture hard way device in your network that can run wireshark with a network card that can run in the promiscuous mode and that can act as gateway for your mobile
open this capure file in wireshark
here you have many options to analyze the net packages i.E. Statistics -&gt; HTTP -&gt; Requests
you could export the result to maybe filter


Wireshark

Promiscuous mode