Request/Response Bodies & DTOs — Roadmap Step & Resources
Mapping JSON to Java objects and using DTOs to decouple API shape from entities
- Level: intermediate
- Estimated time: 1 days
- Roadmap: Java + Spring Boot
Before this step
Interview questions
- Why shouldn't you expose your JPA entities directly as API response bodies?
Study resources
- The DTO Pattern (Data Transfer Object) (Article) — Baeldung's clear explanation of why DTOs decouple API shape from JPA entities.
- DTOs in Spring Boot Explained (Video) — Covers why you shouldn't expose JPA entities directly as API responses.
Part of
- Building REST APIs with Spring Boot — section
- Java + Spring Boot roadmap — the full learning path