Hello I have been stuck on various issues while following a guide on how to setup a shopping cart in nodeJS/Express/MongoDb. The guide is a few years old , and I have been trying to find help in the comments with no luck. My issue is that when trying to start the server , I get an error saying : TypeError : passport.authenticate is not a function.
it is refering to my index.js file which looks like this :
var express = require('express');
var router = express.Router();
var Product = require('D:/Other/Projects/Code/Powershell/shopping-cart/models/product');
var csrf = require('csurf');
var passport = require('D:/Other/Projects/Code/Powershell/shopping-cart/config/passport.js');
var csrfProtection = csrf();
router.use(csrfProtection);
/* GET home page. */
router.get('/', function(req, res, next) {
Product.find(function(err, docs) {
var productChunks = [];
var chunkSize = 3;
for (var i = 0; i < docs.length; i += chunkSize) {
productChunks.push(docs.slice(i, i + chunkSize));
}
res.render('shop/index', { title: 'Shopping Cart', products: productChunks });
});
});
router.get('/user/signup', function (req, res, next) {
res.render('user/signup', {csrfToken: req.csrfToken()});
});
router.post('/user/signup', passport.authenticate('local.signup'), {
successRedirect: '/user/profile',
failureRedirect: '/user/signup',
failureFlash: true
});
router.get('/user/profile', function(req, res, next) {
res.render('user/profile');
});
module.exports = router;
And this is how my app.js file is looking :
var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
var routes = require('./routes/index')(passport);
var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');
var expressHbs = require('express-handlebars');
var mongoose =require('mongoose');
var app = express();
var session = require('express-session');
var passport = require('passport');
var flash = require('connect-flash');
const bodyParser = require('body-parser');
mongoose.connect('mongodb://localhost:27017/shopping', {useNewUrlParser: true, useUnifiedTopology: true});
mongoose.connection.on('error', err => {
throw 'failed to connect to MongoDB';
});
require('passport');
// view engine setup
app.engine('.hbs', expressHbs({defaultLayout: 'layout', extname:'.hbs'}))
app.set('view engine', '.hbs');
app.use(bodyParser.urlencoded({extended: false}));
app.use(bodyParser.json());
app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(session({secret: 'mysupersecret', resave: false, saveUninitialized: false}))
app.use(flash());
app.use(passport.initialize());
app.use(passport.session());
app.use(express.static(path.join(__dirname, 'public')));
app.use('/', indexRouter);
app.use('/users', usersRouter);
// 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;
And here is my passport.js file :
`var passport = require ('passport');`
`var User = require('D:/Other/Projects/Code/Powershell/shopping-cart/models/user');`
`var LocalStrategy = require ('passport-local').Strategy;`
`var mongoose = require('mongoose');`
`passport.serializeUser(function(user, done) {`
`done(null, user.id);`
`});`
`passport.deserializeUser(function(id, done) {`
`User.findById(id, function(err, user){`
`done(err, user);`
`});`
`});`
`passport.use('local.signup', new LocalStrategy({`
`usernameField: 'email',`
`passwordField: 'password',`
`passReqToCallback: true`
`}, function(req, email, password, done){`
`User.findOne({'email': email}), function(err, user){`
`if (err) {`
`return done(err);`
`}`
`if (user) {`
`return done (null, false, {message: 'Email is already in use'});`
`}`
`var newUser = new User ();`
`newUser.email = email;`
`newUser.password = newUser.encryptPassword(password);`
`newUser.save(function(err, result) {`
`if (err) {`
`return done(err);`
`}`
`return done(null, newUser);`
`});`
`};`
`}));`
Any hints on what could be the issue? all help is appreciated, thanks!
