public async Task AddPictureAsync(List <IFormFile> images, Guid hotelId) { var imageNames = new List <string>(); foreach (var image in images) { if (image.Length > 0 && image.ContentType == "image/jpg" || image.ContentType == "image/png") { var fileName = image.FileName; var identifier = Guid.NewGuid(); var name = identifier + fileName; await _azureService.UploadAsync(image.OpenReadStream(), name); imageNames.Add(name); } } _hotelService.AddImage(hotelId, imageNames); }