val route =
    get {
      path("rest") {
        path("orders") {
          complete {
            "List of orders"
          }
        } ~
        path("orders" / Segment) { orderId: String ⇒
          complete {
            s"Order with id = $orderId"
          }
        } ~
        path("orders" / Segment / "shipments") { orderId: String ⇒
          complete {
            s"Shipments for id = $orderId"
          }
        }
      }
    } ~
    post {
      path("orders" / Segment / "cancel") { orderId: String ⇒
        complete(s"Cancel order id = $orderId")
      }
    }