using delicious api to retrieve favorite bookmarks

hello there,
i develop a litle rails api and i want list most favorite bookmarks
from delicious.
i'm looking for a request using yahoo id (i have yahoo api key and
others stuff needed)

Someone already use delicious api ?
someone can help me ?

thank's you

I've never done it myself but

http://delicious.com/help/thirdpartytools

has a couple of Ruby bindings for the delicious API

HTH