public IActionResult GetCategories()
{
IEnumerable <CategoryReqNineDTO> dtos = _unitOfWork.Categories.GetCategoriesAsDTOs();
if (dtos == null)
{
return(null);
}
IEnumerable <CategoryViewModel> vms = CategoryMapper.MapCategoryReqNineDTOsToCategoryViewModels(dtos, Url.Link(nameof(GetCategory), ""));
if (vms == null)
{
return(null);
}
return(Ok(vms));
}