mongoDBDemoData.js

var MongoClient = require('mongodb').MongoClient;
var url = "mongodb://localhost:27017/";
var mongoose = require('mongoose');

 var myobj = {
    "billPlan" : "Annual",
     "code" : 20003,
    "rating" : {
      "totalFees" : "27K",
        "Code" : 201704,
    }
  };
MongoClient.connect(url, function(err, db) {
  if (err) throw err;
  var dbo = db.db("mymongoDBDatabase");
 
  
    setInterval(()=>{
        myobj._id = mongoose.Types.ObjectId();
        myobj.uniqueId =  +new Date();
        dbo.collection("bills").insertOne(myobj, function(err, res) {
            if (err) throw err;
            console.log("1 document inserted");
         });
     }, 10)
  
  });