Odtnhj

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.