public async Task <IEnumerable <FileGroupItemsViewModel> > FileGroupItemsAdd(HttpRequestMessage request) { var provider = new PhotoMultipartFormDataStreamProvider(_uploadPath); await request.Content.ReadAsMultipartAsync(provider); var bodylength = request.Content.Headers.ContentLength; return(_fileUploadService.ProcessDocs(provider.FileData, Convert.ToInt32(bodylength)).Select(x => x.ToViewModel()).ToList()); }