mORMot Open Source

Hi,
I came across mORMot quite recently and I was pretty excited.
I am interested in implementing a server to host our REST API for our Delphi Clients and Third Party Web Sites (Ajax)
I will use the interface-based approach.
I managed to create a Server but I'm having a hard time with
1. Authentication
- It would be great to have OAuth2, I read that its underway, do we have an idea if someone implemented it yet ?

2. Routing
- I can't see how to implement the following URIs into methods (interface-based)
  GET residents/123 (Displays Resident 123)
  PUT residents/456 (Creates Resident  456)
  I saw the following thread but it is still not clear
- A long shot: I would also like to have versions, hence having 3 different versions of get_residents and that beeing defined in the headers when requested?

3. Raising Standard errors
- When a GET/Residents/123 is not found then return the standard 404

I am a traditional RAD Developer and find hard to understand the Documentation but with a little push I will come around
I believe you are doing an excellent work and am very sorry for taking your precious time.

Thanks in advance