Re-send static data when the client confirms it's connected (#102)

* Re-send static data when the client confirms it's connected to avoid timing issues.

* Increment the version number

Author: hhellyer

lib/appmetrics-dash.js

@@ -180,41 +180,51 @@ exports.monitor = function(options) {
    */
   io.on('connection', function(socket) {
     var env = monitoring.getEnvironment();
-    var result = [];
+    var envData = [];
     var json;
     for (var entry in env) {
       switch (entry) {
         case 'command.line':
           json = {};
           json['Parameter'] = 'Command Line';
           json['Value'] = env[entry];
-          result.push(json);
+          envData.push(json);
           break;
         case 'environment.HOSTNAME':
           json = {};
           json['Parameter'] = 'Hostname';
           json['Value'] = env[entry];
-          result.push(json);
+          envData.push(json);
           break;
         case 'os.arch':
           json = {};
           json['Parameter'] = 'OS Architecture';
           json['Value'] = env[entry];
-          result.push(json);
+          envData.push(json);
           break;
         case 'number.of.processors':
           json = {};
           json['Parameter'] = 'Number of Processors';
           json['Value'] = env[entry];
-          result.push(json);
+          envData.push(json);
           break;
         default:
           break;
       }
     }
-    socket.emit('environment', JSON.stringify(result));
+    // Send static data ASAP but re-send below in case the client isn't ready.
+    socket.emit('environment', JSON.stringify(envData));
     socket.emit('title', JSON.stringify({title: title, docs: docs}));
     socket.emit('status', JSON.stringify({profiling_enabled: profiling_enabled}));
+
+    // When the client confirms it's connected and has listeners ready,
+    // re-send the static data.
+    socket.on('connected', () => {
+      socket.emit('environment', JSON.stringify(envData));
+      socket.emit('title', JSON.stringify({title: title, docs: docs}));
+      socket.emit('status', JSON.stringify({profiling_enabled: profiling_enabled}));
+    });
+
     /*
      * Support enabling/disabling profiling data
      */

package.json

@@ -1,6 +1,6 @@
 {
   "name": "appmetrics-dash",
-  "version": "3.3.1",
+  "version": "3.3.2",
   "description": "Embedded monitoring dashboard for Node.js applications.",
   "main": "index.js",
   "dependencies": {

public/index.html

@@ -219,9 +219,9 @@ <h4 class="modal-title" font-color=black>Heap Snapshot</h4>
     }
   </script>
   <script type="text/javascript" src="graphmetrics/js/header.js"></script>
+  <script type="text/javascript" src="graphmetrics/js/nodeReport.js"></script>
 
   <!--
-<script type="text/javascript" src="graphmetrics/js/nodeReport.js"></script>
 <script type="text/javascript" src="graphmetrics/js/envTable.js"></script>
 <script type="text/javascript" src="graphmetrics/js/cpuChart.js"></script>