how to return the user email - node.js

Question

I have created post route to store posts in the database. It's a protected route so user can store post only after entering the login details. When I post in postman, I've seen that the user email is not returned in the object. Even in the mongodb collection, I don't see the email associated with the post. How do I include the email as well with the post object. I don't want the user to enter the email again and again when posting because they have already logged in. So I kinda want to store the email automatically with the post. Hope I make sense. Can someone help me with this?
Right now the object is kinda stored like this in the posts collection in mongodb
_id: ObjectId("5f1a99d3ea3ac2afe5"),
text: "It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout. ",
user:ObjectId("5f1a99d3eac2c82afe5"),
age:20,
country:"India",
gender:"male",
date:2020-07-24T08:23:35.349+00:00,
__v:0
I want the email too in the above object.
Post model
const mongoose = require('mongoose');
const Schema = mongoose.Schema;
const PostSchema = new Schema ({
user: {
type: Schema.Types.ObjectId,
ref: 'users'
},
text: {
type: String,
required: true
},
name: {
type: String
},
email: {
type: String
}
,
age: {
type: Number,
required: true
},
gender: {
type: String,
required: true
},
country: {
type: String,
required: true
},
date: {
type: Date,
default: Date.now
}
})
module.exports = Post = mongoose.model('post', PostSchema)
post route
const express = require('express');
const router = express.Router();
const auth = require('../../middleware/auth')
const { check, validationResult} = require('express-validator');
const User = require('../../models/User')
const Post = require('../../models/Post')
router.post('/', [auth, [
check('text', 'Text is required').not().isEmpty()
]], async (req,res)=>{
const errors = validationResult(req);
if(!errors.isEmpty()){
return res.status(400).json({errors: errors.array()})
}
try {
const user = await (await User.findById(req.user.id)).isSelected('-password')
const newPost = new Post({
text: req.body.text,
name: user.name,
user: req.user.id,
age: req.body.age,
country: req.body.country,
gender: req.body.gender,
email: req.user.email // this email is not stored with the post and I want this to be automatically posted in the collection without the user having to type it again to save the post
})
const post = await newPost.save();
res.json(post);
} catch (err) {
console.error(err.message);
res.status(500).send('Server Error')
}
})
module.exports = router;
User model
const mongoose = require('mongoose');
const UserSchema = new mongoose.Schema({
name: {
type: String,
required: true
},
email: {
type: String,
required: true,
unique: true
},
password: {
type: String,
required: true
},
date: {
type: Date,
default: Date.now
}
})
module.exports = User = mongoose.model('user', UserSchema);

Answer 1

Change isSelected to select
const user = await (await User.findById(req.user.id)).isSelected(password')

Answer 2

What I potentially see the problem here is, once you have grabed the object of user, you're still referring to req.user.email instead of user.email.
If that does not solve your problem, try to console.log the user returned from after User.findById
Update:
You can see here that isSelected returns boolean. So you're essentialy getting true for having password field in user. Also instead of req.user.email use user.email