Nrthugu

Nginx conf:

map $http_upgrade $connection_upgrade {

    default upgrade;

    '' close;

}



upstream websocket {

    server localhost:3305;

}



server {

    listen 8080;



    location /myapp/insights/shiny-proxy/websocket/ {

        proxy_pass http://websocket/;

        proxy_redirect / $scheme://$http_host/;

        proxy_http_version 1.1;

        proxy_set_header Upgrade $http_upgrade;

        proxy_set_header Connection $connection_upgrade;

        proxy_read_timeout 20d;

        proxy_buffering off;

    }



    location / {

        proxy_pass http://localhost:8070/;

    }

}

Spring Mvc (4.2.4 version) Controller:

@RequestMapping(path = "/insights/shiny-proxy/**")

public ResponseEntity<String> mirrorRest(@RequestBody(required = false) 

 String body, HttpMethod method,

        HttpServletRequest request) throws URISyntaxException {

    String path = StringUtils.removeStart(request.getRequestURI(), 

   "/myapp/insights/shiny-proxy");

    URI uri = new URI(request.getScheme(), null, "localhost", ShinyServiceImpl.port, path, request.getQueryString(), null);



    HttpHeaders headers = new HttpHeaders();

    if (path.endsWith(".css.map")) {

        headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON));

    }/*else {

        headers.setAccept(Arrays.asList(MediaType.ALL));

    }*/

    HttpEntity<String> httpEntity = new HttpEntity<>(body, headers);

    ResponseEntity<String> ret = null;

    try {

        ret = restTemplate.exchange(uri, method, httpEntity, String.class);

    } catch (Exception e) {

        e.printStackTrace();

    }



    // System.out.println(ret);

    // System.out.println("ResponseEntity headers: " + ret.getHeaders());

    return ret;

}

JSP:

   <iframe src="shiny-proxy/" class="shinyFrame">

          <object data="shiny-proxy/" type="text/html; charset=utf-8" class="shinyFrame">

          <embed src="shiny-proxy/" type="text/html; charset=utf-8" class="shinyFrame" />

         </object>

    </iframe>

So When my application is started , RShiny will run on localhost:3305, so when localhost:8070/myapp/insights/index.html is opened, the iframe which has shiny url should display.
Right now am getting " HttpMediaTypeNotSupportedException: No Content Type Set" exception.

There are no acccess logs in Nginx, some times it shows upstream error or connection error like

"client timed out (10060: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond) while waiting for request, client: 127.0.0.1, server: 0.0.0.0:8080"

Please provides inputs where might i doing wrong. Thank You.