mapRouteResultPF

Signature

def mapRouteResultPF(f: PartialFunction[RouteResult, RouteResult]): Directive0

Description

Partial Function version of mapRouteResult.

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. It’s similar to the mapRouteResult directive but allows to specify a partial function that doesn’t have to handle all potential RouteResult instances.

See Result Transformation Directives for similar directives.

Example

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

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