expose variables

app.js

@@ -15,9 +15,11 @@ mongoose.connection.on('error', function(err) {
 
 mongoose.connect('mongodb://localhost/transactions');
 var app = express();
+var expose = require('express-expose');
+app = expose(app);
 var server = require('http').Server(app);
 var io = require('socket.io').listen(server);
-io.set('origins', 'http://localhost:8080');
+
 require('./services/trending')(io);
 // Routes
 var api = require('./routes/api');
@@ -33,6 +35,11 @@ app.set('view engine', 'jade');
 
 app.use(favicon(__dirname + '/public/favicon.ico'));
 app.use(logger('dev'));
+app.use(function(req, res, next) {
+	// add an object to expose later
+	res.locals.expose = {};
+	next();
+});
 app.use(bodyParser.json());
 app.use(bodyParser.urlencoded({ extended: true }));
 var rek = require('rekuire');

package.json

@@ -18,6 +18,7 @@
     "socket.io" : "~1.3.4",
     "kue": "~0.7.0",
     "currency-codes": "~1.1.0",
-    "async": "~0.9.0"
+    "async": "~0.9.0",
+    "express-expose": ">= 0.3.4"
   }
 }

public/js/main.js

@@ -1,4 +1,5 @@
-var socket = io('http://localhost:8080');
+console.log(data);
+var socket = io(data.host);
 socket.on('transaction:added', function(data) {
 	var $tr = $('<tr>');
 	var country = $('<td>', {text: data.originatingCountry});

routes/frontend.js

@@ -6,7 +6,6 @@ router.route('/')
 	var rek = require('rekuire');
 	var Transaction = rek('models/transaction');
 	var Trending = rek('models/trending');
-	console.log('frontend');
 	async.parallel({
 		transactions : function(cb) {
 			Transaction.find({}).limit(20).sort({
@@ -24,6 +23,8 @@ router.route('/')
 			}).exec(cb);
 		}
 	}, function(err, result) {
+		console.log(req.headers.host);
+		res.locals.expose.host = req.headers.host;
 		res.render('index', {
 			title : 'Transactions',
 			results : result.transactions,

views/layout.jade

@@ -2,6 +2,8 @@ doctype html
 html
   head
     title= title
+    script.
+      var data = !{JSON.stringify(expose)}
     link(rel='stylesheet', href='/stylesheets/style.css')
     link(rel='stylesheet', href='//maxcdn.bootstrapcdn.com/bootstrap/3.3.2/css/bootstrap.min.css')
     script(src='https://cdn.socket.io/socket.io-1.3.4.js')