Unable to reference from token schema token mongodb express passport - node.js

Question

i need help with this problem been dealing it for days.
i am trying to make a verification email route by using passport to hash passwords while issuing a verification token to the user.
here is my code for index.js in controllers folder
const User = require("../models/user");
const Token = require("../models/token")
const crypto = require("crypto");
const nodemailer = require("nodemailer");
var smtpTransport = nodemailer.createTransport({
service: 'Gmail',
auth: {
user: process.env.GMAILUSER,
pass: process.env.GMAILPW
}
});
module.exports = {
async postRegister(req, res, next) {
var user = new User({
name: req.body.name,
email: req.body.email,
isVerified: false,
username: req.body.username
});
await User.register(user, req.body.password);
res.redirect('/');
var token = new Token({ _userId: user._id, token: crypto.randomBytes(16).toString('hex') });
token.save(function (err) {
if (err) { return res.status(500).send({ msg: err.message
});
}
var mailOptions = {
to: user.email,
from: 'xxxt#xxx.com',
subject: 'xxxxx verify email',
text:'You are receiving this because you need to verify your email for your account.\n\n' +
'Please click on the following link, or paste this into your browser to complete the process:\n\n' +
'http://' + req.headers.host + '/confirmation/' + token.token + '\n\n' +
'If you did not request this, please ignore this email.\n'
};
smtpTransport.sendMail(mailOptions, function(err) {
if (err) { return res.status(500).send({ msg: err.message }); }
res.status(200).send('A verification email has been sent to ' + user.email + '.');
});
})
},
confirmationPost(req,res, next) {
Token.findOne({ token: req.params.token }, function (err, token) {
if (!token)
{console.log("sss")
} else {
User.findOne({ _id: token._userId, email: req.body.email }, function (err, user) {
if (!user) return console.log(user)
if (user.isVerified) return res.status(400).send({ type: 'already-verified', msg: 'This user has already been verified.' });
user.isVerified = true;
user.save(function (err) {
if (err) { return res.status(500).send({ msg: err.message }); }
res.status(200).send("The account has been verified. Please log in.");
})
});
};
})
}
}
This is my Token Schema
const mongoose = require('mongoose');
const passportLocalMongoose = require('passport-local-mongoose');
const Schema = mongoose.Schema;
const tokenSchema = new mongoose.Schema({
_userId: {
type: Schema.Types.ObjectId,
ref: 'User' },
token: {
type: String,
required: true },
createdAt: {
type: Date, required: true,
default: Date.now, expires: 43200 }
});
tokenSchema.plugin(passportLocalMongoose);
module.exports = mongoose.model('Token', tokenSchema);
lastly my user schema
const mongoose = require('mongoose');
const passportLocalMongoose = require('passport-local-mongoose');
const Schema = mongoose.Schema;
const UserSchema = new Schema({
username: String,
name: String,
email: { type: String, unique: true },
image: String,
isVerified: { type: Boolean, default: false },
password: String,
passwordResetToken: String,
passwordResetExpires: Date,
posts: [
{
type: Schema.Types.ObjectId,
ref: 'Post'
}
]
});
UserSchema.plugin(passportLocalMongoose);
module.exports = mongoose.model('User', UserSchema);
everything works fine until the part where the email verification was sent to my email and when i clicked on the link. It gives an error, i tried to console.log
and found that this line from controllers folder index.js
confirmationPost(req,res, next) {
Token.findOne({ token: req.params.token }, function (err, token) {
if (!token)
{console.log("err")
} else {
User.findOne({ _id: token._userId, email: req.body.email }, function (err, user) {
gives me back null.
how do i link that current line to get the token from the registered user?
i've used postman to send a get request to the confirmation route while giving it back the same token and it works.