Node.Js - Passport - Express Validator - req parameter is Undefined - node.js

Question

First, i have this in my route, i need to use Passport to Authenticate the User Sign Up Process :
router.post('/user/signup', passport.authenticate('local.signup',{
successRedirect: '/user/profile',
failureRedirect: '/user/signup',
failureFlash: true
}));
I'm learning Node JS from Youtube Video, in the tutorial, there is a step to create Folder called "config", and inside the "config" folder, there is a file called "passport.js".
The problem is, there is "req" parameter inside one of the function in this "passport.js". When i try to run my program, there is an error that said, "req is not defined". this is the source code of "passport.js" :
var express = require('express');
var passport = require('passport');
var User = require('../models/user');
var LocalStrategy = require('passport-local').Strategy;
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){ //here is the problem
console.log('REQ :');
console.log(req);
console.log('password :');
console.log(email);
console.log('email :');
console.log(password);
console.log('done :');
console.log(done);
req.checkBody('email','Invalid Email').notEmpty().isEmail();
req.checkBody('password','Invalid password').notEmpty().isLength({min:4});
var errors = req.validationErrors();
if(errors){
var message = [];
errors.forEach(function(error){
message.push(error.msg);
});
return done(null, false, req.flash('error', messages));
}
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);
});
});
}));
How to bring the req to fill the parameter in the passport.js ?

Answer 1

The parameter is called passReqToCallback, not passReqToCallBack (notice that the b needs to be lower-case).