spring-boot-openapi-documentation

OpenAPI documentation automatically generates from your Spring Boot application using SpringDoc, which scans your controllers and models to produce machine-readable specs. Add the springdoc-openapi-starter dependency, configure properties to expose /v3/api-docs and /swagger-ui endpoints, and SpringDoc generates interactive Swagger UI documentation without manual spec writing.

Yes, SpringDoc supports security scheme documentation for JWT and OAuth2. Annotate your endpoints and configure security definitions through SpringDoc properties and annotations, and the generated OpenAPI spec includes authentication requirements, making security protocols visible in Swagger UI for API consumers.

SpringDoc supports both Spring WebMvc and WebFlux applications. The same dependency and configuration approach works across reactive and servlet-based frameworks, allowing you to generate consistent OpenAPI documentation regardless of your Spring architecture choice.

Use SpringDoc annotations on your controller methods and model classes to describe request/response bodies and validation constraints. SpringDoc extracts these annotations and renders schema details, validation rules, and examples in the OpenAPI spec and Swagger UI, making API contracts explicit.

Yes, SpringDoc supports multiple documentation groups and versioning. Configure grouped endpoints through properties and annotations to generate separate OpenAPI specs and Swagger UI views, letting you document different API versions or logical sections independently.