Workaround to expose ids with SpringDataRest, if you can't extend RepositoryRestMvcConfiguration

SpringDataRestConfig.java

@Slf4j
@Configuration
public class SpringDataRestConfig {

    private static final String BASE_PACKAGE = "com.example.yourapp";
    
    @Inject
    private RepositoryRestConfiguration restConfig;

    @Inject
    private RepositoryRestMvcConfiguration restMvcConfig;

    @PostConstruct
    public void init(){
        ClassPathScanningCandidateComponentProvider scanner =
                new ClassPathScanningCandidateComponentProvider(false);

        scanner.addIncludeFilter(new AnnotationTypeFilter(Entity.class));

        List<Class<?>> entities = scanner.findCandidateComponents(BASE_PACKAGE)
                .parallelStream()
                .map(bd -> parseClass(bd))
                .collect(Collectors.toList());

        restConfig.exposeIdsFor(entities.toArray(new Class<?>[entities.size()]));
    }

    private Class<?> parseClass(BeanDefinition bd) {
        String name = bd.getBeanClassName();
        try {
            return Class.forName(name);
        } catch (ClassNotFoundException e) {
            throw new RuntimeException("Could not parse bean name: " + name);
        }
    }

}

Nice map and collect function :) Java 8?