Node.js MVC: Express.js and Derby Hello World Tutorial

derby-app.html

<Body:>
  <input value="{message}"><h1>{message}</h1>

derby-app.js

var derby = require('derby'),
  app = derby.createApp(module);

app.get('/', function(page, model, params) {
  model.subscribe('message', function() {
    page.render();
  })
});

app.ready(function(model) {
  model.on('set', 'message', function(path, object) {
    console.log('message has been changed: ' + object);
  })
});

derby-app.less

h1 {
  color: blue;
}

index.js

var http = require('http'),
  express = require('express'),
  derby = require('derby'),
  derbyApp = require('./derby-app');

var expressApp = new express(),
  server = http.createServer(expressApp);

var store = derby.createStore({
  listen: server
});

var model = store.createModel();

expressApp.
  use(store.modelMiddleware()).
  use(express.static(__dirname + '/public')).
  use(derbyApp.router()).
  use(expressApp.router);

server.listen(3001, function(){
  model.set('message', 'Hello World!');
  store.afterDb('set','message', function(txn, doc, prevDoc, done){
    console.log(txn)
    done();
  })   
});

package.json

 {
  "name": "DerbyTutorial",
  "description": "",
  "version": "0.0.0",
  "main": "./server.js",
  "dependencies": {
    "derby": "*",
    "express": "3.x"
  },
  "private": true
}