Created
February 7, 2019 12:49
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Forward proxy on http4s
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| case class ForwardRoute[F[_]](components: Components[F]) | |
| (implicit E: Effect[F], L: Logging[F]) extends Routes[F] { | |
| private val http = components.http | |
| private val forward = components.config.forwardTo | |
| def routes: HttpService[F] = HttpService[F] { | |
| case request => | |
| for { | |
| a <- E.pure(Authority(host = RegName(forward), port = Some(80))) | |
| r <- E.delay(request | |
| .withUri(request.uri.copy(authority = Some(a))) | |
| .withHeaders(request.headers.put(Header("host", forward)))) | |
| response <- http.toHttpService.run(r).getOrElse(Response(NotFound)) | |
| _ <- L.info(s"Forwarded request $request to $r response $response") | |
| } yield response | |
| } | |
| } |
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