extractHost

Extract the hostname part of the Host request header and expose it as a String extraction to its inner route.

Signature

def extractHost: Directive1[String]

Example

Scala
val route =
  extractHost { hn =>
    complete(s"Hostname: $hn")
  }

// tests:
Get() ~> Host("company.com", 9090) ~> route ~> check {
  status shouldEqual OK
  responseAs[String] shouldEqual "Hostname: company.com"
}
Java
import static akka.http.javadsl.server.Directives.complete;
import static akka.http.javadsl.server.Directives.extractHost;


    final Route route = extractHost(hn -> 
        complete("Hostname: " + hn));

    testRoute(route).run(HttpRequest.GET("/").addHeader(Host.create("company.com", 9090)))
        .assertEntity("Hostname: company.com");
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