Swagger API documentation is a web page, Swagger UI, generated from an OpenAPI document. In Spring Boot 4 we add it with one springdoc-openapi dependency and describe the endpoints with annotations such as @Operation and @Schema.
Springdoc OpenAPI generates the OpenAPI 3 document and the Swagger UI page for a Spring Boot REST API from one starter dependency. Default URLs, springdoc.* properties, Swagger annotations, groups, security scheme and how to switch the docs off in production.
Swagger can be integrated with REST APIs in below ways – A top-down approach – First API specification and then code generation. A botton-up approach – First API code and then Swagger integration. In this tutorial, we will learn the top down approach.
Now a days REST and Microservices have got a lot of momentum. At the same time, actual REST specification does not suggest any standard way to document the REST APIs that we are going to expose [like WSDL for SOAP]. As a result, everybody is documenting their APIs in their …
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