app.js

var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
var body = require('body-parser');
var Sequelize = require('sequelize');
var session = require('express-session');
var passport = require('passport');
var flash = require('connect-flash');

var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');
var postRouter = require('./routes/post');
var categoryRouter = require('./routes/category');
var adsRouter = require('./routes/ads');

// var db = require('./database/db');
// try {
//     db.authenticate();
//     console.log('Connection has been established successfully.');
// } catch (error) {
//     console.error('Unable to connect to the database:', error);
// }
var app = express();

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

app.use(logger('dev'));
app.use(body.json());
app.use(body.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
// For Passport

app.use(session({ secret: 'keyboard cat', resave: true, saveUninitialized: true })); // session secret

// app.use(passport.initialize());

// app.use(passport.session()); // persistent login sessions
app.use(flash());
app.use(function(req, res, next) {
    res.locals.success_msg = req.flash('success_msg');
    res.locals.error_msg = req.flash('error_msg');
    res.locals.error = req.flash('error');
    next();
});

app.use('/', indexRouter);
app.use('/users', usersRouter);
app.use('/post', postRouter);
app.use('/category', categoryRouter);
app.use('/ads', adsRouter);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
    next(createError(404));
});

// 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;