Easiest way to update info in app

Hello everybody,
just started with programming for Android (I’m not complete beginner in programming as a whole). I guess I’m gonna be completely specific here. It’s an app for a bar. The app is supposed to show, what drinks are on-tap in the moment (what drinks can customers get in that very moment). There is always exact number of drinks on-tap and the app just shows list of drinks and info about them like the name, % of alcohol and so on. Right now, I’m reading these information from .json file, locally stored on my HDD. But, the app is of course most effective, when these information can get to all people, who downloaded the app. What would be the best way, if the file changes (if there is a change in drinks on-tap), to always show the most updated information about the drinks on-tap. I was thinking about getting that file on FTP server and then just download it everytime.

I hope you’ll understand what I just said :smiley:

Thank you for your replies.

Have you looked at a webservice like Firebase!? That should be a walk in the park

That seems like a good way. Thank you, I will take a look at it.