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index.js
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index.js
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'use strict'
/**
* Module dependencies.
*/
var express = require('../..');
var logger = require('morgan');
var path = require('path');
var session = require('express-session');
var methodOverride = require('method-override');
var app = module.exports = express();
// set our default template engine to "ejs"
// which prevents the need for using file extensions
app.set('view engine', 'ejs');
// set views for error and 404 pages
app.set('views', path.join(__dirname, 'views'));
// define a custom res.message() method
// which stores messages in the session
app.response.message = function(msg){
// reference `req.session` via the `this.req` reference
var sess = this.req.session;
// simply add the msg to an array for later
sess.messages = sess.messages || [];
sess.messages.push(msg);
return this;
};
// log
if (!module.parent) app.use(logger('dev'));
// serve static files
app.use(express.static(path.join(__dirname, 'public')));
// session support
app.use(session({
resave: false, // don't save session if unmodified
saveUninitialized: false, // don't create session until something stored
secret: 'some secret here'
}));
// parse request bodies (req.body)
app.use(express.urlencoded({ extended: true }))
// allow overriding methods in query (?_method=put)
app.use(methodOverride('_method'));
// expose the "messages" local variable when views are rendered
app.use(function(req, res, next){
var msgs = req.session.messages || [];
// expose "messages" local variable
res.locals.messages = msgs;
// expose "hasMessages"
res.locals.hasMessages = !! msgs.length;
/* This is equivalent:
res.locals({
messages: msgs,
hasMessages: !! msgs.length
});
*/
next();
// empty or "flush" the messages so they
// don't build up
req.session.messages = [];
});
// load controllers
require('./lib/boot')(app, { verbose: !module.parent });
app.use(function(err, req, res, next){
// log it
if (!module.parent) console.error(err.stack);
// error page
res.status(500).render('5xx');
});
// assume 404 since no middleware responded
app.use(function(req, res, next){
res.status(404).render('404', { url: req.originalUrl });
});
/* istanbul ignore next */
if (!module.parent) {
app.listen(3000);
console.log('Express started on port 3000');
}