First Move (11~18) - Code, Learn, Build
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First Move (11~18) - Code, Learn, Build

Structured, level-based technology learning paths from foundational exploration to industry mastery.

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← Java Enterprise Development|Level 3: Enterprise Microservices, Framework Architecture & Production Engineering

18. Spring Boot REST Architecture & Microservice Endpoints

Lesson 18 of 25
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Spring Boot REST Architecture & Microservice Endpoints

Architect web REST APIs, dependency injection beans, Spring Data JPA repositories, REST controllers, and DTO request validation.

Spring Boot REST Component Layers

### Spring REST Architecture Layers 1. **Controller Layer (`@RestController`)**: Handles HTTP requests (`@GetMapping`, `@PostMapping`), path parameters, and DTO request validation (`@Valid`). 2. **Service Layer (`@Service`)**: Encapsulates business logic rules, data transformations, and transaction boundaries. 3. **Repository Layer (`@Repository`)**: Interfaces with database persistence storage.
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