Add Firebase support.

package.json

@@ -19,6 +19,7 @@
   "homepage": "https://github.com/kern/webdrop",
   "dependencies": {
     "browserify": "^9.0.3",
-    "express": "^4.12.0"
+    "express": "^4.12.0",
+    "firebase": "^2.2.1"
   }
 }

server/app.js

@@ -1,8 +1,14 @@
 var express = require('express');
 var app = module.exports = express();
+var db = require('./db');
+
+var greeting = 'Hello World!';
+db.child('greeting').on('value', function(snapshot) {
+  greeting = snapshot.val();
+});
 
 app.get('/', function (req, res) {
-  res.send('Hello World!');
+  res.send(greeting);
 });
 
 app.use(express.static(__dirname + '/../static'));

server/db.js

@@ -0,0 +1,2 @@
+var Firebase = require('firebase');
+var db = module.exports = new Firebase('https://webdrop.firebaseio.com/');

server/index.js

@@ -3,5 +3,5 @@ var app = require('./app');
 var server = app.listen(process.env.PORT || 3000, function () {
   var host = server.address().address;
   var port = server.address().port;
-  console.log('WebDrop listening at http://%s:%s', host, port);
+  console.log('WebDrop listening on %s:%s', host, port);
 })