app.js

var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var hbs = require('hbs');

var index = require('./routes/index');
var api = require('./routes/api');

var app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'html');
app.engine('html', require('hbs').__express);

// Register hbs Partials
hbs.registerPartials(__dirname + '/views/partials');

// Register hbs extend and block helpers
var blocks = {};
hbs.registerHelper('extend', function(name, context) {
    var block = blocks[name];
    if (!block) {
        block = blocks[name] = [];
    }
    block.push(context.fn(this));
});

hbs.registerHelper('block', function(name) {
    var val = (blocks[name] || []).join('\n');
    // clear the block
    blocks[name] = [];
    return val;
});

// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

app.use('/', index);
app.use('/api', api);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  var err = new Error('Not Found');
  err.status = 404;
  next(err);
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;