I am looking at the possibility to build a REST alike API for my application by creating an own servletfactory that extends the defaultservletfatcory (com.ibm.xsp.extlib.services.servlet.DefaultServletFactory). In the example I have a service engine is defined based upon com.ibm.domino.services.ServiceEngine which returns a RestViewJsonService which is based upon com.ibm.domino.services.rest.das.view.RestViewJsonService.RestViewJsonService.

I notice this is build upon Domino Access Services (DAS) with which I did not have so good experience with in performance.

Are there other options I could use to avoid using DAS?

It is not clear what the ServiceFactory expects as return result.