in our solution, we store the trdx reports designed with Standalone Designer as xml strings in our database,
and render them to pdf in the background services by using  Telerik.Reporting.XmlSerialization.ReportXmlSerializer.Deserialize

the new web based designer would be a good addon to integrate report design directly into the appliciation.

but the current preview version of webreportdesigner needs to be configured with a FileStorage.
it is possible to override the GetReport and SaveReport functions in a custom ReportDesignerController and load the report from a string (db in our case),

but since the ReportJsonSerializer is an iternal class, it is not possible to create a json response and send it to the webeditor.

so it would be helpfull, either to make the ReportJsonSerializer a public class so it can be used to convert the report manally to json, or extend the

whole thing to load the reports from strings directly.