Rails as RESTful web service

Dear all,

Is it possible to use rails as a RESTful web service? Has anyone done
this before? Is there any drawback when doing this? Could anyone share
their experiences?

Thanks in advance.

It's a litle bit old, but you can probably get a lot of good ideas
from it -> http://www.rubyinside.com/restful-rails-development-pdf-released-392.html