To get started with the app, clone the repo and then install the needed gems:
$ bundle install --without production
Next, migrate the database:
$ rails db:migrate
You'll need to make an account with Spotify Developer to get Spotify API access keys. Put those access keys in a .env file in your root directory like below:
SPOTIFY_CLIENT_ID = "XXXXXXXX"
SPOTIFY_CLIENT_SECRET = "XXXXXXXX"
Set the Spotify callback link on Spotify Developer to your hosted environment.
Example: http://localhost:3000/auth/spotify/callback
Example: http://heroku-project.com/auth/spotify/callback
Run the application
$ rails server