mongodb node driver filter an array code example
Example 1: find string element in an array mongodb
db.articles.find({
"stock.country" : "01",
"stock.warehouse.code" : "02"
}).pretty();
Example 2: mongo query by object id node js
//declare ObjectId from mongodb module
const ObjectId = require('mongodb').ObjectId;
//transform your param into an ObjectId
var id = req.params.id;
var good_id = new ObjectId(id);
//you can now query
Model.find({_id: good_id})