How can I access cube metadata using the REST API?

Hi All,

I'm looking to write a 3rd party front end for BI cubes and have been directed towards the REST API here: https://docs.intersystems.com/iris20222/csp/docbook/DocBook.UI.Page.cls?...

I've had quick test using postman and can use those fine, the issue I have is that there are some areas of metadata not exposed by the api that are essential to write a front end tool. I can list the cubes and measures using the /INFO/ paths, but that seems to be the limit of what is available.

In particular I need to be able to get metadata for Dimensions, Hierarchies, Levels and Member Properties, and a way to list the Namesapces would be good to so that a user can browse those.

Is there any way to get this information?

Thanks

Colin