That is really nice. The last time I attempted scraping an app was using an android emulator (bluestacks), then using maybe Wireshark or Charles for getting the API endpoint. It didn't work for some reason though. I don't remember the exact error and I am kinda skeptical about app scraping being this easy.

I recently did something similar with good results (I found the api endpoints I was interested in) using the official Android emulator and https://github.com/mitmproxy/mitmproxy

I did have to jump through some hoops with the emulator and pushing my own ssl cert to it's RO system partition. But it was a few commands and easy enough.