How can I find out the full URL that an Android app is making a request to?

Question

Android

There is an application. It loads the banner.
I need to know the exact full URL of this banner.
With the help of the firewall, it was possible to find out the host to which the application is making a request.
However, the full URL of the image could not be retrieved using the firewall.
Thank you in advance.

Answer 1

tcpdump, it can also be run on a number of routers.
If https, then it is more difficult, for example, you can use a proxy like Charles and forcefully turn traffic from the router to it. In this case, the smartphone will need to install the Charles certificate as trusted.