mapRouteResult • Akka HTTP (original) (raw)

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

source`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

source`import static akka.http.javadsl.server.Directives.mapRouteResult;

import static akka.http.javadsl.server.Directives.complete; import static akka.http.javadsl.server.Directives.mapRouteResult;

// 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 rejections = Collections.singletonList(Rejections.authorizationFailed()); return RouteResults.rejected(rejections); }, () -> complete("abc"));

// tests: runRouteUnSealed(route, HttpRequest.GET("/")) .assertRejections(Rejections.authorizationFailed());`

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