scala-dispatch.scala

def query[T](target: String, params: Seq[(String, String)])(fromRespStr: String => T): (Int, Option[T]) = {
   executer x (:/(host, port) /  target <<? params >:> identity) {
     case (200, _, Some(entity), _) => {
          val respBodyStr = fromInputStream(entity.getContent()).getLines.mkString
          (200, Some(fromRespStr(respBodyStr)))
     }
     case (status, _, _, _) => (status, None)
   }
}