public async Task <IActionResult> AddMaterial([FromBody] MaterialAddForm json)
        {
            var photoName = await _photoService.SafePhoto(json.Photo);

            var id       = _furnitureService.AddMaterial(photoName, json);
            var response = _furnitureService.GetSingle <Material, MaterialResponse>(id);

            response.Photo = photoName;

            return(StatusCode(201, response));
        }