mapRouteResultWithPF

Signature

def mapRouteResultWithPF(f: PartialFunction[RouteResult, Future[RouteResult]]): Directive0

Description

Asynchronous variant of mapRouteResultPF.

Changes the message the inner route sends to the responder.

The mapRouteResult directive is used as a building block for Custom Directives to transform the RouteResult coming back from the inner route.

See Result Transformation Directives for similar directives.

Example

case object MyCustomRejection extends Rejection
val rejectRejections = // not particularly useful directive
  mapRouteResultWithPF {
    case Rejected(_) => Future(Rejected(List(AuthorizationFailedRejection)))
  }
val route =
  rejectRejections {
    reject(MyCustomRejection)
  }

// tests:
Get("/") ~> route ~> check {
  rejection shouldEqual AuthorizationFailedRejection
}