Get all documents from an authenticated user (relation OneToMany) - mongodb

Question

I am learning to use mongoDB AND ExpressJS by building a Rest API that I would use with ReactJS.
I have always chosen MySQL for the management of my database, but the mongoDB database is not relational and it is still difficult for me to understand.
An example of what I want to do
Let's say that I have created a blog and want to get all the articles from a user logged in with an account.
All these operations are managed with a REST API and MongoDB.
How to create a OneToMany relationship between articles and a user.
With MySQL I just had to specify a user_id key for each article in an article table.
But with mongoDB how to create this and especially for a user who is logged in with an account, so that only a logged in user can view his articles.
EDIT
I have tried something, it works but I don't know if it's the right approach.
Context:
I made a REST API with NodeJS and ExpressJS.
The API will allow a user to organize their applications to facilitate the search for a job.
A user must create an account and log in to take advantage of all of the application's features, so no information is publicly available.
For registration and authentication of a user, I use PassportJS, mongoConnect and ExpressSession
To start, the User model of mongoDB
const userSchema = mongoose.Schema({
name: {
type:String
},
email: {
type:String,
required:true,
unique:true
},
email_is_verified: {
type:Boolean,
default:false
},
password: {
type:String,
},
referral_code : {
type:String,
default: function() {
let hash = 0;
for(let i=0; i < this.email.length; i++){
hash = this.email.charCodeAt(i) + ((hash << 5) - hash);
}
let res = (hash & 0x00ffffff).toString(16).toUpperCase();
return "00000".substring(0, 6 - res.length) + res;
}
},
referred_by : {
type: String,
default:null
},
third_party_auth: [ThirdPartyProviderSchema],
date: {
type:Date,
default: Date.now
}
},
{ strict: false }
);
module.exports = mongoose.model('Users', userSchema);
The Apply model represents an apply for a job, for now there is only the title.
To create the OneToMany relationship, I add a User field which refers to my User model
Function to retrieve all applies, so I retrieve the user id of the session.
const applySchema = mongoose.Schema({
title: { type:String, required:true },
user: {
type: mongoose.Schema.Types.ObjectId,
ref: "User"
}
})
module.exports = mongoose.model('Apply', applySchema);
I created a controller for the management of a user's applies
exports.getAllApplies = (req, res, next) => {
res.locals.currentUser = req.user;
const userId = res.locals.currentUser.id
Apply.find({ user:userId })
.then(applies => res.status(200).json({ message:'success',
applies:applies }))
.catch(error => res.status(400).json({ error:error, message: 'Failed'}))
}
Function allowing to consult an apply
exports.getOneApply = (req, res, next) => {
res.locals.currentUser = req.user;
const userId = res.locals.currentUser.id
Apply.findOne({ _id:req.params.id, user:userId })
.then(apply => res.status(200).json({ message: `Apply with id
${apply._id} success`, apply:apply}))
.catch(error => res.status(500).json({ error:error, message:'Failed'}))
}
The routes of my api, I add an auth middleware to allow requests only for a user with a token
const express = require('express');
const router = express.Router();
const auth = require('../middleware/auth');
const applyCtrl = require('../controllers/apply');
router.get('/', auth, applyCtrl.getAllApplies);
router.get('/:id', auth, applyCtrl.getOneApply);
module.exports = router;
I apologize for the length of the post, if you have any questions, I would be happy to answer them.
Thank you in advance for your help and your answers.