Agent Skills: Spring REST Controller Scaffold

Spring REST Controller Scaffold

Generate a $ARGUMENTSController with the following:

• @RestController and @RequestMapping("/api/$ARGUMENTS") (lowercased plural)
• CRUD endpoints with proper HTTP verbs and status codes:
  • GET /api/$ARGUMENTS — list (with pagination params)
  • GET /api/$ARGUMENTS/{id} — fetch one (404 on miss)
  • POST /api/$ARGUMENTS — create (201 + Location header)
  • PUT /api/$ARGUMENTS/{id} — update (200 or 404)
  • DELETE /api/$ARGUMENTS/{id} — delete (204)
• Request and response DTOs for $ARGUMENTS (don't expose the JPA entity directly)
• @Valid + Jakarta validation annotations on the request DTOs
• OpenAPI annotations (@Operation, @ApiResponses)
• Integration tests using @SpringBootTest + MockMvc covering happy path, validation failure, and 404

Conventions

• Constructor injection (no field @Autowired)
• ResponseEntity return types so HTTP status is explicit
• Use the project's existing exception handler if @ControllerAdvice is present
• Match the package layout of existing controllers

Usage: /spring-controller User → UserController, UserRequest, UserResponse, UserControllerIntegrationTest