Advanced module
Module 17: Spring Boot Service Development
Turn framework knowledge into maintainable backend services. This module covers dependency injection, auto-configuration, REST design, repositories, environment configuration, and a full Spring mini-project.
Module lessons
Module 17: Spring Boot Service Development
IoC and Dependency Injection
Understand Spring inversion of control as a design aid, not just a framework rule. You will learn how the container creates objects, wires dependencies, and improves testability when you keep construction explicit and responsibilities small.
Spring Boot Starters and Auto-Configuration
Learn what Spring Boot auto-configuration and starters really do so the framework feels helpful instead of mysterious. You will see how Boot infers application features from the classpath and configuration, and how to override defaults when needed.
REST Controllers, DTOs, and Validation
Design clear REST endpoints with validation and DTO boundaries so your HTTP layer stays predictable as the application grows. This lesson focuses on request and response shapes, status codes, validation flow, and where controller responsibilities should stop.
Spring Data JPA Repositories
Use Spring Data JPA repositories productively without losing sight of query shape, transaction boundaries, or performance. You will learn where repository abstractions save time and where custom queries or explicit fetch strategies are still the better choice.
Configuration Properties and Profiles
Organize configuration so the same application can run cleanly in development, test, staging, and production. You will use typed properties, profiles, and externalized values to keep environment differences out of core application logic.
Mini-Project: Task Management API
Assemble a task management API that feels like a professional service, not a disconnected framework demo. You will combine controllers, validation, services, repositories, DTOs, configuration, and tests into one small but coherent backend application.
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