app.js

/**
 * Module dependencies.
 */

var express = require('express')
  , routes = require('./routes')
  , user = require('./routes/user')
  , http = require('http')
  , path = require('path');

var mongoose = require('mongoose');

mongoose.connect('mongodb://guest:guest@alex.mongohq.com:10052/agricloud');

var Schema = mongoose.Schema
  , ObjectId = Schema.ObjectId;

var ExtJsFile = new Schema({
    path     : String
  , content  : String
});

var ExtJsFile = mongoose.model('ExtJsFile', ExtJsFile);

var file1 = new ExtJsFile();

file1.path = "Application.js";
file1.content = 'Hello World';

file1.save(function(err) {
  //do something
});

var app = express();

app.configure(function(){
  app.set('port', process.env.PORT || 3000);
  app.set('views', __dirname + '/views');
  app.set('view engine', 'jade');
  app.use(express.favicon());
  app.use(express.logger('dev'));
  app.use(express.bodyParser());
  app.use(express.methodOverride());
  app.use(app.router);
  app.use(express.static(path.join(__dirname, 'public')));
});

app.configure('development', function(){
  app.use(express.errorHandler());
});

app.get('/', routes.index);
app.get('/users', user.list);

app.post('/editor/readExtJsFile', function(req, res) {
  ExtJsFile.find({path: 'Application.js'}, function (err, docs) {
    if (docs.length > 0) {
      res.send(docs[0].content);
    }
  });
});

app.get('/editor/listAll', function(req, res) {
  ExtJsFile.find({}, function (err, docs) {
    res.send(docs);
  });
});

http.createServer(app).listen(app.get('port'), function(){
  console.log("Express server listening on port " + app.get('port'));
});