Is there a Ruby http client library with a response cache?

Is there a Ruby http client library where responses are automatically cached by ETag and the If-Non-Match header applied to r开发者_如何学Pythonequests on previously used URLs?

You might want to check the list of "Ruby HTTP clients features" (archived version from January 2015) for a complete overview.

Take a look at Faraday-HTTP-Cache.

rufus-jig supports conditional GET.