ExtractRawRequestAkkaHTTP.scala

 post {
        entity(as[Foo]) { rq: Foo =>
          complete("aa")
        } ~ getRqEnt {
          val foo = Foo("boo")
          val ett = Await.result(Marshal(foo).to[RequestEntity], 100 millis)
          //val recEtt = {"a" : "thx1138"}
          str => {
            println(ett)
            println(str)
            complete(str)
          }
        }
        /*~ entity(as[JValue]) { ent =>
          val foo = Foo("boo")
          val ett = Await.result(Marshal(foo).to[RequestEntity], 100 millis)
          //val recEtt = {"a" : "thx1138"}
          println(ett)
          complete("ooooo")
        }*/
      }
    } ~ complete("Welcome to Crossdata HTTP Server")


  val getRqEnt = extract[String] { rqCtx =>
    rqCtx.request.entity.toString
  }