Springfox swagger - no api-docs with spring boot jersey and gradle

Question

I have a spring boot application with jersey and gradle, and I am trying to automatically generate the API documentation using springfox.

I have followed the steps h

Answer 1

To be able to see Jersey methods from Springfox swagger UI:

1. Configure your Swagger with Jersey following https://github.com/swagger-api/swagger-core/wiki/Swagger-Core-Jersey-2.X-Project-Setup-1.5
2. Configure Springfox Swagger following http://springfox.github.io/springfox/docs/current/

3. Add in you SpringBoot application configuration class (annotated with @Configuration):

   @Value("${springfox.documentation.swagger.v2.path}") private String swagger2Endpoint;

4. In application.properties add reference to your Jersey swagger.json:

   springfox.documentation.swagger.v2.path=/{change it to your Jersey api path}/swagger.json

Now you should be able to see Jersey Swagger generated api from Springfox Swagger UI page.

Answer 2

As of version 2.5.0 springfox only supports spring-mvc controllers. Jax-rs implementations like jersey aren't supported.

The current alternative to using springfox is to use the swagger-core library for jax-rs/jersey based services.

It does have the hooks needed to implement support for jersey in 2.6+. Here is an excerpt of a way to implement it in this issue

Currently ResourceConfig has a method called "getClasses" which will list everything registerted. like Resources, Filters,etc... Maybe this could help. But be aware that the returning classes could also be filters or any other stuff you could register with jersey2.

Answer 3

Thanks @Dilip-Krishnan for the springfox update and @Guy-Hudara for the question, I came up with the following solution to get swagger support in my springboot jersey powered app :

import io.swagger.jaxrs.config.BeanConfig;
import io.swagger.jaxrs.listing.ApiListingResource;
import io.swagger.jaxrs.listing.SwaggerSerializers;
import org.glassfish.jersey.server.ResourceConfig;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;

import javax.annotation.PostConstruct;

/**
 * As of version 2.5.0 springfox only supports spring-mvc controllers. Jax-rs implementations like jersey aren't supported.
 *
 * Fortunately io.swagger::swagger-jersey2-jaxrs::1.5.3 have the hooks needed to implement support for jersey in 2.6+.
 *
 * some pointers I used to get this swagger config done and swagger-core, springboot and jersey integrated:
 * http://stackoverflow.com/questions/37640863/springfox-swagger-no-api-docs-with-spring-boot-jersey-and-gardle
 * https://www.insaneprogramming.be/blog/2015/09/04/spring-jaxrs/
 * https://github.com/swagger-api/swagger-core/wiki/Swagger-Core-Jersey-2.X-Project-Setup-1.5#adding-the-dependencies-to-your-application
 *
 */
@Configuration
public class SwaggerConfiguration {

    @Autowired
    ResourceConfig resourceConfig;

    @PostConstruct
    public void configure() {

        resourceConfig.register(ApiListingResource.class);
        resourceConfig.register(SwaggerSerializers.class);

        BeanConfig beanConfig = new BeanConfig();
        beanConfig.setVersion("1.0.2");
        beanConfig.setSchemes(new String[]{"http"});
        beanConfig.setHost("localhost:8888");
        beanConfig.setBasePath("/api");
        beanConfig.setResourcePackage("com.my.resource");
        beanConfig.setPrettyPrint(true);
        beanConfig.setScan(true);

    }
}

That worked out great for me