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API foundation
Spring Boot REST API
A Java 21 / Spring Boot REST API with PostgreSQL, Spring Data JPA, DTOs, and a layered backend architecture.
Role
Developer - backend and data model
Timeframe
Foundational project
Impact
API foundation
Java 21Spring BootPostgreSQLSpring Data JPAREST API
Problem
The challenge
- Needed a solid understanding of REST API design, authorization, and persistence before building larger systems.
Solution
What I built
- Built a Java 21 / Spring Boot REST API with PostgreSQL and Spring Data JPA.
- Organized the backend into Controller, Service, Repository, Entity, and DTO layers.
- Delivered product CRUD endpoints with a clean, extensible structure.
Architecture
How it works
- Spring Boot REST API with layered Controller/Service/Repository structure.
- PostgreSQL persistence with DTO-based CRUD endpoints.
Results
The impact
- Created a reusable backend foundation for later full-stack product work.