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Created November 5, 2014 23:36
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Reverse-proxy in Play!
def reverseProxy = Action.async(parse.raw) {
request: Request[RawBuffer] =>
// Create the request to the upstream server:
val proxyRequest =
WS.url("http://localhost:8887" + request.path)
.withHeaders(flattenMultiMap(request.headers.toMap): _*)
.withQueryString(request.queryString.mapValues(_.head).toSeq: _*)
// Stream the response to the client: {
case (headers: WSResponseHeaders, enum) => Result(
ResponseHeader(headers.status, headers.headers.mapValues(_.head)),
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aloon commented Mar 10, 2015

The code runs well unless the backend content-encoding is chuncked. Do you know how do it?

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Something like that? Also see the Play Framework Documentation. {
        case (response, body) =>
          // Check that the response was successful.
          if (response.status == 200) {
            // Get the content type.
            val contentType = response.headers.get("Content-Type").flatMap(_.headOption)
            val headers = response.headers.filterKeys(_ != "Transfer-Encoding")

            // If there's a content length, send that, otherwise return the body chunked.
            response.headers.get("Content-Length") match {
              case Some(Seq(length)) =>
                  .withHeaders(headers.mapValues(_.mkString(",")).toSeq: _*)
                  .withHeaders("Content-Length" -> length)
              case _ =>
                  .withHeaders(headers.mapValues(_.mkString(",")).toSeq: _*)
          } else {

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How to do that in Java? I get problem with the body part:


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