public Response createDoc(CreateDocsRequest request)
        {
            Response retval = null;

            try
            {
                _dal.CreateDoc(request);
                //check if doc created:
                var newDoc = _dal.GetDoc(request.DocData.DocId).Tables[0].Rows;
                if (newDoc.Count == 1)
                {
                    retval = new CreateDocResponseOk("Document was created!");
                }
            }
            catch (Exception ex)
            {
                retval = new CreateDocResponseErr(ex.Message);
            }
            return(retval);
        }