I have been trying to use the newly launched Channel API on SDK 1.4 in my project. I try to push a message to client which actually pops up a notification but I am getting the ChannelFailureException. Here is the code: TestServlet Where the token is created: public void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { PrintWriter out = resp.getWriter(); resp.setContentType("text/html"); // Creating the userID on the basis of the session id String userId = req.getSession().getId(); // Starting the ChannelService of the channel API ChannelService channelService = ChannelServiceFactory .getChannelService(); // Creating the client token String token = channelService.createChannel(userId); req.getSession().setAttribute("token", token);
out.println("<html>"); out.println("<head>"); out.println("<title>This is a servlet which will be used to try the new Channel API</title>"); out.println("</head>"); out.println("<body>"); out.println("<a href=\"/ChannelAPI.jsp\">Click Here</a> to recieve a notification on the next page using channel API"); out.println("</body>"); } } Channel API.jsp <script> channel = new goog.appengine.Channel('<%= userId%>'); socket = channel.open(); //socket.onopen = onOpened; socket.onmessage = onMessage; socket.onerror = onError; socket.onclose = onClose; onMessage = function (message){ $.pnotify({ pnotify_title: 'Regular Notice', pnotify_text: message.data }); }; onError = function (description,code){ $.pnotify({ pnotify_title: 'Uh Oh!', pnotify_text: 'something went wrong', pnotify_type: 'error', pnotify_hide: false }); }; </script> Send Message servlet: public void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { String userId = (String) req.getSession().getAttribute("token"); ChannelService channelService = ChannelServiceFactory.getChannelService(); channelService.sendMessage(new ChannelMessage(userId, "This is the message that has been sent")); } } The stack trace I got Uncaught exception from servlet com.google.appengine.api.channel.ChannelFailureException: An unexpected error occurred. at com.google.appengine.api.channel.ChannelServiceImpl.sendMessage(ChannelServiceImpl.java: 59) Can you tell me if there is something wrong with the code or with the Channel API? Thanks in advance, Tarun -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.