From d2c41775e5fb44c6b8c6d0badc75850cc689f46a Mon Sep 17 00:00:00 2001
From: Claudio Cardinale <cardinale.claudio@gmail.com>
Date: Tue, 30 Aug 2016 11:39:20 +0200
Subject: [PATCH] port number retrieved by env var

---
 index.js     | 6 ++++--
 package.json | 1 +
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/index.js b/index.js
index a322dca0..4795204e 100644
--- a/index.js
+++ b/index.js
@@ -1,6 +1,7 @@
 var app = require('express')();
 var http = require('http').Server(app);
 var io = require('socket.io')(http);
+var dotenv = require('dotenv').load();
 
 app.get('/', function(req, res){
   res.sendFile(__dirname + '/index.html');
@@ -12,6 +13,7 @@ io.on('connection', function(socket){
   });
 });
 
-http.listen(3000, function(){
-  console.log('listening on *:3000');
+var port = process.env.PORT || 3000;
+http.listen(port, function(){
+  console.log('listening on *:'+port);
 });
diff --git a/package.json b/package.json
index 46f75814..9571af56 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,7 @@
   "version": "0.0.1",
   "description": "my first socket.io app",
   "dependencies": {
+    "dotenv": "^2.0.0",
     "express": "4.10.2",
     "socket.io": "1.2.0"
   }