Cypress-CURD in MongoDB

var MongoClient = require('mongodb').MongoClient;
var ObjectID = require('mongodb').ObjectID;
var url = 'mongodb://localhost' // connect url

function mongodbUpdate (dbname, collection, findStr, updateStr) { 
    return new Promise((resolve, reject) => {
        var findStr1 = findStr;
        var updateStr1 = updateStr;
        MongoClient.connect(url, {
            useNewUrlParser: true,
            useUnifiedTopology: true
        }, function (err, db) {
            if (err) throw err;
            var dbo = db.db(dbname);
            dbo.collection(collection).updateMany(findStr1, updateStr1, function (err, res) {
                if (err) throw err;
                console.log(res.result.nModified + ' updated');
                resolve(res.result);
                db.close();
            })
        })
    })
};

function mongodbDelete (dbname, collection, object_id) { 
    return new Promise((resolve, reject) => {
        console.log(collection);
        MongoClient.connect(url, {
            useNewUrlParser: true,
            useUnifiedTopology: true
        }, function (err, db) {
            if (err) throw err;
            var dbo = db.db(dbname);
            var queryStr = { object_id: new ObjectID(object_id) }
            dbo.collection(collection).deleteMany(queryStr, function (err, res) {
                if (err) throw err;
                console.log(res.result.n + ' removed');
                resolve(res.result);
                db.close();
            })
        })
    });
};

module.exports = { mongodbUpdate, mongodbDelete };