public List<WriterDto> GetAll()
 {
     var ds = new DataService();
     var result = ds.GetWriter();
     return result;
 }
 public List<CategoryDto> GetAll()
 {
     var ds = new DataService();
     var result = ds.GetCategories();
     return result;
 }
 public List<CategoryDto> GetCategoryById(int categoryId)
 {
     var ds = new DataService();
     var result = ds.GetCategoriesById(categoryId);
     return result;
 }
 public List<StoriesDto> GetAll()
 {
     var ds = new DataService();
     var result = ds.GetStories();
     return result;
 }