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app.js
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app.js
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var express = require('express'),
app = express(),
port = process.env.PORT || 8000;
var session = require('express-session');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var passport = require('passport');
var exphbs = require('express-handlebars');
var flash = require('connect-flash');
var mongoose = require('mongoose');
// Passport Auth
require('./config/passport')(passport);
// Cron scheduled tasks
require('./config/cron');
// App config
var config = require('./config/config');
// Database
var db = mongoose.connection;
var uri = config.database;
var options = {
autoReconnect: true,
keepAlive: 1,
connectTimeoutMS: 30000
};
var dbName = uri.slice(uri.lastIndexOf('/') + 1); // Do not expose db password to console
db.on('connecting', function () {
console.log('Connecting to database:', dbName);
});
db.on('connected', function () {
console.log('Database connection established.');
});
db.on('error', function () {
console.log('Database connection failed!');
mongoose.disconnect();
});
db.on('disconnected', function () {
console.log('Disconnected from:', uri);
mongoose.connect(uri, options).catch(function () {
console.error('Error establishing a database connection! \nPlease check your database service.');
});
});
db.on('reconnected', function () {
console.log('Reconnected to database.');
});
mongoose.connect(uri, options).catch(function () {
console.error('Error starting application!');
process.exit(1);
});
// CDN resources for views
app.locals = ({
cdn: config.cdn
});
// Read cookies
app.use(cookieParser());
app.use(bodyParser.urlencoded({
extended: true
}));
app.use(bodyParser.json());
// View engine
app.engine('.hbs', exphbs({
extname: '.hbs',
defaultLayout: 'layout',
partialsDir: __dirname + '/views/partials/'
}));
app.set('view engine', '.hbs');
// Required for passport
app.use(session({
secret: 'ItsVerySecret.ChangeAndStoreItInEnvVariableInProduction!',
resave: true,
saveUninitialized: true
}));
app.use(passport.initialize());
// Persistent login sessions
app.use(passport.session());
// Expose user account info to template engine
app.use(function (req, res, next) {
res.locals.user = req.user;
next();
});
// Flash messages stored in session
app.use(flash());
// Handle static files
app.use(express.static(__dirname + '/public'));
// Routes
require('./routes/routes.js')(app, passport);
// Error handler
app.use(function (err, req, res, next) {
// if URIError occurs
if (err instanceof URIError) {
err.message = 'Failed to decode param at: ' + req.url;
err.status = err.statusCode = 400;
return res.send('Error: ' + err.status + '<br>' + err.message);
} else {
// More errors...
}
});
// Turn off Express header
app.disable('x-powered-by');
app.listen(port, console.log('Web server is listening on port:', port));