let ctrl = new EmailController({Connector:_connector}); ctrl.SendEmail(to, subject, content, function(result){ }); //lower level api let args = [to, subject, content]; cfg.Connector.Submit(args, "ardvro/component/sqljson/EmailController/SendEmail", function (box) { callback(box.Data); }); ctrl.SendEmailWithAttachment(to, subject, content, filename, filecontent function(result){ }); //lower level api let args = [to, subject, content, filename, filecontent]; cfg.Connector.Submit(args, "ardvro/component/sqljson/EmailController/SendEmailWithAttachment", function (box) { callback(box.Data); });