public string SaveAttachment(AttachmentsDemoWeb.Constants.Attachment attachment)
        {
            try
            {
                DriveRestClient restClient = new DriveRestClient(AppConstants.GoogleDriveClientId, AppConstants.DropboxClientSecret, googledriveRedirectUrl.ToString());


                restClient.Token = Storage.GoogleDrive.Token;



                string uploadText = restClient.UploadFile(attachment.AttachmentName, attachment.AttachmentBytes);
                return("Uploaded Sucessfully.");
            }
            catch (Exception s)
            {
                return(s.Message);
            }

            //return "";
        }