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 config = require('./config');
var session = require('express-session');
var RedisStore = require('connect-redis')(session);

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

var auth = require('./routes/auth');
var api = require('./routes/api');
var blog = require('./routes/blog');
var posts = require('./routes/posts');
var comments = require('./routes/comments');

var app = express();

// config
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

// middleware
// 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(session({
    resave: false, // don't save session if unmodified
    saveUninitialized: false, // don't create session until something stored
    cookie: {
        maxAge: 24 * 60 * 60 * 1000
    },
    secret: config.cookieSecret,
    store: new RedisStore({
        host: config.RedisHost,
        port: config.RedisPort,
        pass: config.RedisPass,
        ttl: config.sessionExpiration,
        prefix: 'sess'
    })
}));
// Session-persisted message middleware
app.use(function(req, res, next) {
    var err = req.session.error;
    var msg = req.session.success;
    delete req.session.error;
    delete req.session.success;
    res.locals.message = '';
    if (err) res.locals.message = '<p class="msg error">' + err + '</p>';
    if (msg) res.locals.message = '<p class="msg success">' + msg + '</p>';
    next();
});

app.use('/', routes);
app.use('/users', users);

app.use('/auth', auth);
app.use('/api', api);
app.use('/blog', blog);
app.use('/posts', posts);
app.use('/comments', comments);

// 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 handlers

// development error handler
// will print stacktrace
if (app.get('env') === 'development') {
    /*app.use(function(err, req, res, next) {
        res.status(err.status || 500);
        res.render('error', {
        message: err.message,
        error: err
        });
    });*/
    app.use(function(err, req, res, next) {
        res.status(err.status || 500);
        res.json({
            status: 'fail',
            error: err.message
        });
    });
}

// production error handler
// no stacktraces leaked to user
app.use(function(err, req, res, next) {
    res.status(err.status || 500);
    res.render('error', {
        message: err.message,
        error: {}
    });
});


module.exports = app;