Initialize swagger without web.xml to disable it in production - rest

Question

I am using Swagger with Jersey 2 and spring bootstrap. Currently I'm looking a solution to disable swagger on production as it will be concern in case any user
uses the API's with the swagger UI.
I'm registering io.swagger.jersey.config.JerseyJaxrsConfig servlet in web.xml and passing init parameters to it like api.version and swagger.api.basepath. Along with this I'm registering package to scan as io.swagger.jaxrs.listing so that org.glassfish.jersey.server.ResourceConfig will take care to prepare swagger UI.
I got to know from internet that we can achive this byb using #profile annotations. But I experienced that If we register any class in Web.xml, even though you are using #Profile on that class level, it will not work as the class going to be loaded at context load.
I have static contents in my project like swagger-ui-min.js, swagger-ui.js, index.html etc to load the swagger.
With this setup, how can I disable swagger UI in production? Also if some one have experience on , should swagger could be disabled in production or not?

Answer 1

You could have a flag which allows to load the Swagger Servlet only when you are not in production (here for Swagger 2):
import javax.ws.rs.ApplicationPath;
import javax.ws.rs.core.Application;
import java.util.HashSet;
import java.util.Set;
import io.swagger.jaxrs2.integration.resources.OpenApiResource;
#ApplicationPath("") // no application path after the context root
public class MyApp extends Application {
#Override
public Set<Class<?>> getClasses() {
Set<Class<?>> classes = new HashSet<>();
classes.add(...); // your main service
if (notInProduction) { // a flag telling that you are not in production
classes.add(OpenApiResource.class);
}
return classes;
}
}

Answer 2

Below code worked for me.
String enable_swagger_ui = System.getenv("ENABLE_SWAGGER_UI");
if( enable_swagger_ui != null && enable_swagger_ui.equalsIgnoreCase("true"))
packages("io.swagger.jaxrs.listing");
You just need to add the ENABLE_SWAGGER_UI in system environment variable where you want to enable swagger.