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shrine-medco/apps/admin-app/src/main/scala/net/shrine/admin/httpclient/HttpClientDirectives.scala
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HttpClientDirectives.scala
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package net.shrine.admin.httpclient
import net.shrine.log.Loggable
import spray.can.Http
import akka.io.IO
import akka.actor.{ActorRef, ActorSystem}
import spray.http.{HttpResponse, HttpRequest, Uri}
import spray.routing.{Route, RequestContext}
import akka.pattern.ask
import scala.concurrent.duration.DurationInt
import scala.util.Try
import scala.concurrent.ExecutionContext.Implicits.global
/**
* From https://github.com/bthuillier/spray/commit/d31fc1b5e1415e1b908fe7d1f01f364a727e2593 with extra bits from http://www.cakesolutions.net/teamblogs/http-proxy-with-spray .
* Replace when Spray has its own version.
*
* @author david
* @since 9/14/15
*/
trait HttpClientDirectives extends Loggable {
private def sending(f: RequestContext ⇒ HttpRequest)(implicit system: ActorSystem): Route = {
val transport: ActorRef = IO(Http)(system)
ctx ⇒ {
val request = f(ctx)
debug(s"Forwarding request to happy service $request")
import scala.concurrent.blocking
blocking {
transport.ask(request)(10 seconds).onComplete { tryAny: Try[Any] =>
//todo replace with fold when try gets it in scala 2.12
val any = tryAny.get
any match {
case response: HttpResponse => ctx.complete(response.entity)
}
}
}
}
}
/**
* proxy the request to the specified uri
*
*/
def httpRequest(uri: Uri)(implicit system: ActorSystem): Route = {
sending { ctx =>
HttpRequest(ctx.request.method,
uri.withPath(uri.path.++(ctx.unmatchedPath)))
}
}
/**
* proxy the request to the specified uri with the unmatched path
*
*/
def httpRequestWithUnmatchedPath(uri: Uri)(implicit system: ActorSystem): Route = {
sending { ctx ⇒
HttpRequest(ctx.request.method,
uri.withPath(uri.path.++(ctx.unmatchedPath)))
}
}
}
object HttpClientDirectives extends HttpClientDirectives
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