Re: [vertx:55480] Capturing the response from the target server as a plain text while using vertx reverse proxy

[Thomas SEGISMONT]

Hi,

You can use the ProxyResponse getBody and setBody methods.

See the body filtering section of the doc: https://vertx.io/docs/4.4.5/vertx-http-proxy/java/#_body_filtering

Le mar. 29 août 2023 à 18:57, Nanthini Seingouttavane <nseingo...@gmail.com> a écrit :

Hello all,

I would need your help on the following.

I am trying to implement a HTTP proxy using vert.x reverse proxy to capture the incoming request and outgoing response.

But for the response I am not able to capture it as a plain text whereas for the request I use interceptor that intercepts the request and logs the request as plain text.

How can capture the response as a plain text.

This is my code 

public Future<Runnable> start(Vertx vertx) {
    HttpClient proxyClient = vertx.createHttpClient();

    HttpProxy proxy = HttpProxy.reverseProxy(proxyClient);
    proxy.origin(targetPort, targetHost);
    proxy.addInterceptor(new ProxyInterceptor() {
      @Override
      public Future<ProxyResponse> handleProxyRequest(ProxyContext context) {
        ProxyRequest proxyRequest = context.request();

        HttpServerRequest originalRequest = proxyRequest.proxiedRequest();
        originalRequest.bodyHandler(requestBody -> {
          LOG.info("Request Body: {}", requestBody.toString("UTF-8"));
        });
        // Continue the interception chain
        return context.sendRequest();
      }
    });

    proxy.addInterceptor(new ProxyInterceptor() {
      @Override
      public Future<Void> handleProxyResponse(ProxyContext context) {
        ProxyResponse proxyResponse = context.response();
      // there is no proxyResponse.proxiedResponse() method and no handlers for ProxyResponse either

        return context.response().send();
      }
    });

    HttpServer proxyServer = vertx.createHttpServer();

    proxyServer.requestHandler(proxy).listen(listeningPort);
  }

Please help

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