Developing a RESTful Cocoa web service

I want to develop a RESTful开发者_StackOverflow Web service in Cocoa. I have seen plenty of examples that have been done with .Net (Windows Communication Foundation), JAVA, Python etc. However, can any one point me to some framework or Library that can be used to deveop a RESTful Web serivice? You can also send me an example to develop a Generic Web serice in Cocoa (not necessarily a RESTful).

Check out this sample project: http://developer.apple.com/library/mac/#samplecode/CocoaHTTPServer/Introduction/Intro.html