Live update + class progress

app.js

@@ -5,9 +5,11 @@ const passport = require('passport');
 const flash = require('connect-flash');
 const session = require('express-session');
 const bodyParser = require('body-parser');
-var path = require('path');
-var fs = require('fs');
-var dotenv = require('dotenv');
+const http = require('http');
+const path = require('path');
+const fs = require('fs');
+const dotenv = require('dotenv');
+const socket = require('socket.io');
 dotenv.config();
 
 const app = express();
@@ -21,7 +23,7 @@ const db = require('./config/keys').mongoURI;
 // Connect to MongoDB
 mongoose
   .connect(
-    process.env.DB_URI || 'mongodb://localhost/knoldus',
+    process.env.DB_URI || 'mongodb://localhost/27017',
     { useNewUrlParser: true, useUnifiedTopology: true}
   )
   .then(() => console.log('MongoDB Connected'))
@@ -63,6 +65,16 @@ app.use(function(req, res, next) {
 app.use('/', require('./routes/index.js'));
 app.use('/users', require('./routes/users.js'));
 
-const PORT = process.env.PORT || 5000;
+const PORT = process.env.PORT || 8080;
+const server = app.listen(PORT, function() {
+  console.log(`Server listening on port ${PORT}`);
+});
+let io = socket(server);
 
-app.listen(PORT, console.log(`Server started on port ${PORT}`));
+io.on('connection', function(socket) {
+  console.log('connected');
+
+  socket.on('add:xp', function(data) {
+    io.sockets.emit("added:xp", data);
+  });
+});