title: Sending outbound HTTP request from Akka / Scala
body: <p>I know how to <a href="http://doc.akka.io/http" rel="nofollow">handle incoming http requests</a> in Akka, but I want my Akka-based web app also to communicate with Facebook and CouchDB through HTTP APIs by sending outbound calls. Is there any good practice of this? Should calls be async?</p>