Help with current AH api - No response

Hello everyone,

I'm barely getting started on the API, and exploring the different requests.

I'm trying to hit the Auction House API, but from the documentation:

http://blizzard.github.com/api-wow-docs/#id3683980

I have hit a couple of URLs:

http://us.battle.net/api/wow/auction/data/medivh
http://us.battle.net/api/wow/auction/data/sargeras

I'm not getting any results as described on the docs. I get 404.

Any idea what i'm doing wrong or if it's working at all?