mapRouteResult
Signature
def mapRouteResult(f: RouteResult ⇒ RouteResult): Directive0
Description
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
- Scala
-
val rejectAll = // not particularly useful directive
mapRouteResult {
case _ => Rejected(List(AuthorizationFailedRejection))
}
val route =
rejectAll {
complete("abc")
}
// tests:
Get("/") ~> route ~> check {
rejections.nonEmpty shouldEqual true
}
- Java
-
// this directive is a joke, don't do that :-)
final Route route = mapRouteResult(r -> {
if (r instanceof Complete) {
final HttpResponse response = ((Complete) r).getResponse();
return RouteResults.complete(response.withStatus(200));
} else {
return r;
}
}, () -> complete(StatusCodes.ACCEPTED));
// tests:
testRoute(route).run(HttpRequest.GET("/"))
.assertStatusCode(StatusCodes.OK);
final Route route = mapRouteResult(rr -> {
final Iterable<Rejection> rejections = Collections.singletonList(Rejections.authorizationFailed());
return RouteResults.rejected(rejections);
}, () -> complete("abc"));
// tests:
runRouteUnSealed(route, HttpRequest.GET("/"))
.assertRejections(Rejections.authorizationFailed());