Expose all IDs when using Spring Data Rest

Question

I'd like to expose all IDs using a Spring Rest interface.

I know that per default an ID like this will not be exposed via the rest interface:

    @Id     @GeneratedValue(strategy=GenerationType.IDENTITY)     @Column(unique=true, nullable=false)     private Long id; 

I'm aware that I can use this to expose the ID for User:

@Configuration public class RepositoryConfig extends RepositoryRestMvcConfiguration {     @Override     protected void configureRepositoryRestConfiguration(RepositoryRestConfiguration config) {         config.exposeIdsFor(User.class);     } } 

But is there an easy way to expose all IDs without manually maintaining a list in this configureRepositoryRestConfiguration method?

Answer 1

If you want to expose the id field for all your entity classes:

import java.util.stream.Collectors;  import javax.persistence.EntityManager;  import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.annotation.Configuration; import org.springframework.data.rest.core.config.RepositoryRestConfiguration; import org.springframework.data.rest.webmvc.config.RepositoryRestConfigurerAdapter;  @Configuration public class MyRepositoryRestConfigurerAdapter extends RepositoryRestConfigurerAdapter {      @Autowired     private EntityManager entityManager;      @Override     public void configureRepositoryRestConfiguration(RepositoryRestConfiguration config) {         config.exposeIdsFor(entityManager.getMetamodel().getEntities().stream().map(e -> e.getJavaType()).collect(Collectors.toList()).toArray(new Class[0]));     }  }