Filtering for API parts in swagger

Question

I have a REST API and springfox swagger v2.6.1 included and working. But now, I would like to not always display all the controllers I have, because some of them are very technical and not intended for the average user, but I want to be able to choose what I show without having to recompile the code. There is this dropdown field on top of the page which says 'default (/v2/api-docs)' (or whatever you configured it to), with only this one entry. My hunch is that it should be possible to have multiple options there, and according to the option show certain controller classes or not.

As I don't really know how to upload images, I cannot provide screenshots. I hope that my question is clear anyway.

The code that does the swagger in my project is the simplest possible:

@Bean
public Docket api() {

    return new Docket( DocumentationType.SWAGGER_2 )
            .select()
                .apis( RequestHandlerSelectors.any() )
                .paths( PathSelectors.any() )
                .build()
            .apiInfo( metadata() );
}

private ApiInfo metadata() {
    return new ApiInfoBuilder()
            .title( "My awesome ACS API" )
            .description( "All the requests that the server will respond to." )
            .version( "1.0.0" )
            .build();
}

I tried several approaches like adding some Properties, doing two .select() and selecting for different things, but I don't really seem to get anywhere close to what I hope to achieve.

Thanks for any help!

Answer 1

You can also Provide package name

@Bean
public Docket api() {

    return new Docket( DocumentationType.SWAGGER_2 )
            .select()
            .apis(RequestHandlerSelectors.basePackage("com.hello.world.controller.user"))
            .paths( PathSelectors.any() )
            .build()
            .apiInfo( metadata() );
}

or you can use custom Annotation for your API classes or API methods as below:

@Bean
public Docket api() {

    return new Docket( DocumentationType.SWAGGER_2 )
            .select()
            .apis(RequestHandlerSelectors.withClassAnnotation(MyCustomClassAnnotation.class))
            .paths( PathSelectors.any() )
            .build()
            .apiInfo( metadata() );
}



@Bean
public Docket api() {

    return new Docket( DocumentationType.SWAGGER_2 )
            .select()
            .apis(RequestHandlerSelectors.withMethodAnnotation(MyCustomMethodAnnotation.class))
            .paths( PathSelectors.any() )
            .build()
            .apiInfo( metadata() );
}

Answer 2

Some of the options I can think of

1. You can add Authentication to different endpoints using SpringSecurity and make the endpoints not accessible at all(But will be visible in Swagger UI).

2. The drop down you are mentioning on the top can be configured something like this

   @Bean
   public Docket orderApi() {
       // This will group the endpoints strting with /order.   
       // And it will be visible as a separate group in the drop down(In Swagger UI) 
       // with the name 'order' as specified in the groupName(..)
       return new Docket(DocumentationType.SWAGGER_2)
               .groupName("order")
               .apiInfo(metadata())
               .select()
               .paths(PathSelectors.ant("/order/**"))
               .build();
   }
   
   @Bean
   public Docket orderValidationApi() {
       return new Docket(DocumentationType.SWAGGER_2)
               .groupName("product")
               .apiInfo(metadata())
               .select()
               .paths(PathSelectors.ant("/product/**"))
               .build();
   }
   

3. You can completely exclude the endpoint from being visible in Swagger UI with someting like this in your Docker configuration

      return new Docket( DocumentationType.SWAGGER_2 )
           .select()
               .apis( RequestHandlerSelectors.any() )
               .paths(PathSelectors.regex("(?!/error).+")).paths(PathSelectors.regex("(?!/product).+"))
               .build()
           .apiInfo( metadata() );  
   

   This will make all the endpoints which are not /error and /product available. you can filter out endpoints like this.