title: Making POST requests with parameters in GWT
body: <p>I am trying to do a POST request with a set of parameters to a given URL. The problem I am having is that the POST request is made, but no parameters are passed.  </p>
  
  <pre class="lang-java prettyprint-override"><code>    RequestBuilder builder = new RequestBuilder(RequestBuilder.POST, url);
  
      StringBuilder sb = new StringBuilder();
      for ( String k: parmsRequest.keySet() ) {
          String vx = URL.encodeComponent( parmsRequest.get(k));
          if ( sb.length() &gt; 0 ) {
              sb.append("&amp;");
          }
          sb.append(k).append("=").append(vx);
      }
  
      try {
          Request response = builder.sendRequest( sb.toString(), new RequestCallback() {
  
              public void onError(Request request, Throwable exception) {}
  
              public void onResponseReceived(Request request, Response response) {}
          });
      } catch (RequestException e) {}
  }
  </code></pre>
  
  <p>This works just fine if I use mode GET and manually add the querystring to the request - but I need to use POST as the data to be passed along may be large....</p>