[example] Update serverstats example to work with Express 4 (#954)

Author: hodanny

examples/serverstats-express_3/package.json

@@ -2,16 +2,8 @@
   "author": "",
   "name": "serverstats",
   "version": "0.0.0",
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/einaros/ws.git"
-  },
-  "engines": {
-    "node": ">0.4.0"
-  },
+  "repository": "websockets/ws",
   "dependencies": {
-    "express": "2.x"
-  },
-  "devDependencies": {},
-  "optionalDependencies": {}
+    "express": "~4.14.0"
+  }
 }

examples/serverstats-express_3/public/index.html

@@ -1,12 +1,12 @@
 var WebSocketServer = require('../../').Server;
 var express = require('express');
 var path = require('path');
-var app = express.createServer();
+var app = express();
+var server = require('http').createServer();
 
 app.use(express.static(path.join(__dirname, '/public')));
-app.listen(8080);
 
-var wss = new WebSocketServer({server: app});
+var wss = new WebSocketServer({server: server});
 wss.on('connection', function (ws) {
   var id = setInterval(function () {
     ws.send(JSON.stringify(process.memoryUsage()), function () { /* ignore errors */ });
@@ -17,3 +17,8 @@ wss.on('connection', function (ws) {
     clearInterval(id);
   });
 });
+
+server.on('request', app);
+server.listen(8080, function () {
+  console.log('Listening on http://localhost:8080');
+});