This isn't exactly a question in need of help, however, I am curious as to which file is updated, when updated, when I use Heroku via Github. Would it be the one within my Github or does Heroku save those files and update them somewhere else?
All I'm trying to accomplish is edit a JSON file so I can store an integer to each player (I'm using a worker, for a discord bot). Also, yes, that seems like what I am trying to do. Anything that saves the information, doesn't require money and isn't too complex
EDIT:
This issue has been solved with the answer that Heroku simply cannot update JSON files. I have resolved it myself by moving my host onto a Raspberry Pi 3 Model B+. Thank you for all the answers.
All I'm trying to accomplish is edit a JSON file so I can store an integer to each player (I'm using a worker, for a discord bot). Also, yes, that seems like what I am trying to do. Anything that saves the information, doesn't require money and isn't too complex
Heroku's filesystem is ephemeral. Any changes you save to the local filesystem will be lost when your dyno restarts, which happens frequently. If you scale your application to multiple dynos you'll also run into trouble since the ephemeral filesystems are dyno-local.
Your best bet is to use a proper client-server datastore, like PostgreSQL. Heroku provides its own Postgres service, which has a free tier. If Postgres isn't to your liking, feel free to choose something else.