In Teiid Designer, we can expose Virtual Databases (VDBs) as RESTful services by generating a REST WAR containing REST web service procedures. We have enhanced that capability in the 9.1 release (in beta as of this writing) by adding Swagger annotations that expose the service metadata and allow you to view and execute the procedures in the generated WAR. Swagger is an open-source framework that allows you to document your REST APIs.

Here is a video that illustrates the feature: