How to Auto update Value in mongodb Document - node.js

Question

I have a field in my mongoose schema called "active" and I wanted to know if there is any way that every date expired in a particular document, then the "active" field would change to false. how should I do that if so, What is the easiest way to do this? else, what is recommended?
And below is my Schema;
const mongoose = require('mongoose');
const Schema = mongoose.Schema;
const schema = new Schema({
user_id: {
type: String,
required: true
},
firstName: {
type: String,
required: true
},
username: {
type: String,
required: true
},
email: {
type: String,
required: true
},
hash: {
type: String,
required: true
},
active: {
type: Boolean,
},
role: {
type: String,
required: true
},
createdDate: {
type: Date,
default: Date.now
}
});
schema.set('toJSON', { virtuals: true });
module.exports = mongoose.model('User', schema);

Answer 1

You can do this with a feature in mongo called Change Streams that allow you to access real-time data changes. You can subscribe to the changes of a single collection or the whole database and react to them. You can also filter for specific changes or transforms. For your case an example would be something like this.
EDIT: Change streams implementation is only available on replica sets.
const pipeline = [
{ $match: { expire_date: {$lt: Date.now()} } },
{ $set: { active: false } }
];
const collection = db.collection('user');
const changeStream = collection.watch(pipeline);
changeStream.on('change', next => {
// process next document
});