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 mongoose = require('mongoose');
var passport = require('passport');
var LocalStrategy = require('passport-local');
var session = require('express-session');
var sessionStore = new session.MemoryStore;
var expressValidator = require('express-validator');
var flash = require('connect-flash');
var User = require('./models/User');

mongoose
  .connect('mongodb://localhost:27017/store', { useNewUrlParser: true })
  .then(() => console.log('MONGODB CONNECTED'))
  .catch((err) => console.log(err));


var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');
var productsRouter = require('./routes/products');

var app = express();


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

app.use(session({
  cookie: {
    expires: 24*60*60*1000
  },
  store: sessionStore,
  saveUninitialized: false,
  resave: true,
  secret:'shhhhh',
  duration:24*60*60*1000,
  activeDuration:24*60*60*1000
}));

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

// passport.use(new LocalStrategy(User.authenticate()));
// passport.serializeUser(User.serializeUser());
// passport.deserializeUser(User.deserializeUser());
require('./middleware/passport')(passport, LocalStrategy, User);

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
app.use(expressValidator({
  errorFormatter: (param, msg, value) => {
    var namespace = param.split('.');
    var root = namespace.shift();
    var formParam = root;

    while (namespace.length) {
      formParam += '[' + namespace,shift() + ']';
    }
    return {
      param: formParam,
      msg: msg,
      value: value
    }
  }
}));

// use connect-flash
app.use(flash());

// config the flash messages
app.use((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('/products', productsRouter);

// 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;