donsn

// This copies data from the mongodb collection <collection1> to <collection2> preserving the _id field, it will skip if the _id already exists

console.log('Starting mongodb fixes');
var url = "mongodb+srv://<username>:<password>@<clustername>.mongodb.net/<dbname>?retryWrites=true&w=majority";
const { MongoClient } = require('mongodb');
var fs = require('fs');
const databaseName = '<database_name>';
const collectionOne = 'collection1';
const collectionTwo = 'collection2';
let continueProcessing = true;