This project marks the beginning of my journey into Java, Spring Boot, and the microservices architecture. It is a hands-on, end-to-end application designed to store and manage data about Runners (Categories) and their Shoes (Elements).
The system follows modern microservice principles with components such as service discovery, routing, multiple data sources, and a separate frontend written in Angular.
Each microservice is independently deployable and communicates through HTTP, managed by the Spring Cloud Eureka Discovery Service.
- Managed via H2 in-memory database
- Handled by JPA repositories
- Used for fast access and testing logic at runtime
- Stored in MongoDB instances:
- One for Runners (Categories)
- One for Shoes (Elements)
- Data in MongoDB is never deleted, ensuring a historical archive of all records
| Service | Description |
|---|---|
| Gateway Service | Acts as a reverse proxy. Forwards incoming API calls to correct microservice |
| Discovery Service | Registers all services and handles load balancing between instances |
| Category Service | Manages logic for Runners (Categories). Connected to H2 + MongoDB |
| Element Service | Manages logic for Shoes (Elements). Connected to H2 + MongoDB |
- Angular SPA connects users to the backend via the Gateway Service
- It communicates with REST endpoints exposed by each backend microservice
- Can be served independently or integrated into the Spring Boot application