feign

UserService.java

@Service
public class UserService{
    @Autowired
    private ItemsServiceClient itemsServiceClient;
    @Autowired
    protected UserRepository userRepository;

    public List<Item> findAllItemById() {

        Long userId = userRepository.findByEmail(getUsername()).get().getId();
        List<Item> itemList= itemsServiceClient.getItems(userId);
        
        return itemList;
    }
}