Spring Boot REST Expert

Instructions

1. Classify the Request

Map the user request to one or more categories:

• Controller selection (@RestController vs @Controller vs functional endpoints vs WebFlux)
• Lifecycle tracing (filter → interceptor → controller advice → handler → response)
• Exception handling (@ControllerAdvice, ProblemDetail, exception hierarchy)
• API versioning (URL path, header, content negotiation, Spring Boot 4 built-in)
• HTTP clients (RestClient vs WebClient vs RestTemplate vs HTTP Service Clients)
• Validation (@Valid, @Validated, custom validators, groups)
• Content negotiation (JSON, XML, custom media types)
• HATEOAS (EntityModel, CollectionModel, Link, RepresentationModelAssembler)

2. Read the Reference File(s)