Music Genie is a backend system that integrates with music providers (currently Spotify) to allow users filter liked songs into curated playlists.
It is containerized with Docker, deployed on Railway Cloud, and comes with a CI/CD pipeline for automated builds and deployment.

Demo flow: login → fetch playlists-> filter liked songs → create playlist → view result in Spotify.

• App link: Music Genie Backend on Railway
• Swagger UI: API Documentation

Since Spotify API requires whitelisted accounts, use the following temporary demo account for testing:

• Email: lafon18664@aiwanlab.com
• Password: MusicGenie#

⚠️ Note: Limited permissions; for testing/demo purposes only.

• Spotify Integration – fetch user’s liked songs and organize them into custom playlists.
• Spring Boot Backend – robust, modular, production-like architecture.
• Persistence – MySQL for user data.
• Caching & Session Management – Redis improves performance and handles authentication sessions.
• OAuth2 Login – secure authentication via Spotify.
• Role-Based Access Control (RBAC) – supports USER and ADMIN.
• Design Patterns
  • Factory Pattern and Strategy Pattern to easily integrate new music providers (Apple Music, YouTube Music).
• Performance Optimizations – caching reduces API response time from 4.6s → 1s (~78% faster).
• Swagger API Documentation – full API reference with sample requests.
• Testing – 85%+ coverage with JUnit and Mockito (services + controllers).
• Deployment & CI/CD – Dockerized app with automated build, test, and deploy pipeline on Railway Cloud.

• Backend: Java, Spring Boot
• Database: MySQL
• Caching & Session Management: Redis
• Auth: OAuth2 (Spotify)
• Testing: JUnit, Mockito
• Documentation: Swagger UI
• Deployment: Docker, Railway Cloud
• CI/CD: GitHub Actions

POST /api/filter – Create a new filter request

Request Body:

{
  "playlistIds": ["4KyUDj9bCeNB03vNMqnZq4"],  
  "artists": ["Nirvana"],
  "popularity": 90,
  "releaseYear": "2011",
  "provider": "spotify"
}