Rythma is a backend service (written in Java) that simulates a music streaming service. It has a CLI interface that allows users to interact with the service. The service is capable of managing users, songs, playlists, podcasts and more.

• User
  • Artist
  • Podcast Host
• Playable Item
  • Song
  • Podcast Episode
• Audio Collection
  • Playlist
  • Album
  • Podcast
• Notification

• User Management
  • Register User
  • Login/Logout User
• As a User
  • Create/Delete Playlists
  • Add/Remove Songs from Playlist
  • Follow or unfollow Playlists
  • View/clear notifications (e.g.: when a playlist you follow adds another song)
  • Search for Songs/Playlists/Albums/Podcasts/Artists/Podcast Hosts
• As an Artist (+ all User features)
  • Create/Delete Albums
  • Add/Remove Songs from Albums
  • Update description & social media links
• As a Podcast Host (+ all User features)
  • Create/Delete Podcasts
  • Add/Remove Episodes from Podcasts
  • Update affiliation

• Singleton - for services like UserService, MusicService etc.
• Strategy - for different Search strategies
• Factory - for creating Users etc.
• Command
  • wraps every request from the CLI
  • provides an elegant way to handle I/O
  • makes appropriate calls to the service layer and to the audit system