Get all the categories using the RESTFULL API

Hello everybody,

All my documents in alfresco are Categorizable. (Category as an Aspect)

I would like to get all the catégories using the restfull API. Is that possible ?

I'm able to get all the tag using this : "http://localhost:8080/alfresco/service/api/tags/workspace/SpacesStore"

But how can i get all the categories ?

Here a screen of what i want (it's a french version) : http://www.hostingpics.net/viewer.php?id=3453512016011810h0046.png

I want to get all the categories, for all documents, not categories for a specific one.

Thx a lot in advance.

Cordialy.