Is there any gem to send request to some service in xml format

[xdesix]

I want to send request to some third party service in xml and also expecting response in xml. I'm searching for some gem or any idea how to do this.Thing which is in my mind is to[*]make some partail _example.xml.builder [*]onclick from my view to some button send ajax request to controller action and use render_to_string to render that xml doc and then[*]Save it in some variable[*]and then call to that service method in same actionBut it is not proper thing as I expect there should be some thing more efficient than my suggested thing