spring-bootlisted

# Spring Boot Skill ## When to activate - Building a Spring Boot REST API or microservice - Setting up Spring Data JPA with Hibernate and PostgreSQL/MySQL - Configuring Spring Security (JWT, OAuth2, session-based auth) - Writing Spring Boot tests (unit with Mockito, integration with TestRestTemplate or MockMvc) - Setting up Spring Cloud (service discovery, config server, API gateway) - Implementing async processing with `@Async` or Spring Events - Configuring profiles, properties, and externalized configuration - Writing custom Spring Boot starters or auto-configurations ## When NOT to use - Quarkus or Micronaut projects — different DI and config models - Plain Java without Spring — overhead isn't justified for simple scripts - Android projects — different ecosystem entirely - Jakarta EE/WildFly — different application server model ## Instructions ### Project structure ``` src/ ├── main/ │ ├── java/com/example/app/ │ │ ├── AppApplication.java # @SpringBootApplication entry point │ │ ├── config/ # @Configuration beans │ │ ├── controller/ # @RestController — HTTP layer only │ │ ├── service/ # Business logic — @Service │ │ ├── repository/ # @Repository — data access │ │ ├── domain/ # @Entity models │ │ ├── dto/ # Request/response shapes (records) │ │ ├── exception/ # @ControllerAdvice error handling │ │