[ctrl4]

Yup. I did this with a local Android app, that tells you the gps location of a public bus. I sniffed the http packets, found the requests i needed and made a python script that pinged me at slack when my bus was 5 minutes from my bus stop. Useful when I worked at night.

[spikej]

I'm familiar with the web dev tools, but no clue about mobile. Can you point me in the right direction on how to do the same?

Were you using an android emulator on desktop or there's some way to easily do this on android?

[dhruvkar]

I use mitmproxy or charles proxy with an android emulator, with an older version of Android so it allows for a man-in-the middle, without being finicky about certificates.

[dhruvkar]

Nice, that's the next step up.

Man-in-the-middle Android apps to discover (sometimes different API backend).

I did the same with a shipping line which turned out to use a SOAP backend.