This is what I came up with (I have another question below):
def onSuccessHead(magnet: OnStreamSuccessHeadMagnet): Directive[magnet.Out] = {
magnet.directive
}
trait OnStreamSuccessHeadMagnet {
type Out
def directive: Directive[Out]
}
object OnStreamSuccessHeadMagnet {
import akka.http.server.directives.FutureDirectives._
implicit def apply[T](s: Source[T, _])(implicit mat: ActorFlowMaterializer,
tupler: Tupler[T]) = {
new OnStreamSuccessHeadMagnet {
type Out = tupler.Out
val directive =
onSuccess(s.runWith(Sink.head("SourceMarshallerHeadSink")): Future[T])
}
}
}
and the route:
onSuccessHead(userService.createUser(req)) { newUser =>
respondWithHeader(Location(s"/$v1/$user/${newUser.id}")) {
complete(Created -> newUser)
}
}
By the way, is there a way of extracting "constant" paths? e.g. my path is
path("v1" / "user") but I don't want to have separate constants for v1 and
user and something like path("some" / "path") { (some, path) => ...}
doesn't work. In other words, how do you do reverse routing in spray/akka
http?
Thanks
G
On Thursday, 12 March 2015 00:10:24 UTC, Giovanni Alberto Caporaletti wrote:
>
> Hi,
> Completing a route with a Tuple3[StatusCode, Seq[HttpHeader], T] doesn't
> seem to work for me. My json4s marshaller serializes the whole tuple as an
> object. Tuple2[StatusCode, T] works instead.
> Are there any plans to implement it?
>
> What's the best way to add headers to a response anyway? In my case the
> header depends on a future (or, well, on a materialization of a stream).
>
>
> Thank you
>
> Cheers
> G
>
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