Insert One – Insert Single Document in Collection. syntax:- db.collection(<collection_name>).insertOne(<document>, <callback_function>) Insert Many – Insert Multiple Document in Collection. syntax:- db.collection(<collection_name>).insertMany(<documents_array>, <callback_function>) Insert One -Insert Single Document in Collection We have a database with the name of 'mydb' and we are going to insert a document in customers collection. Insert single Document directly //to import mongodb var MongoClient = require('mongodb').MongoClient; //connect url var url = "mongodb://localhost:27017/mydb"; //make client connect MongoClient.connect(url, function (err, client) { var db = client.db('mydb'); if (err) throw err; // insert document to 'customers' collection using insertOne db.collection("customers").insertOne({ name: "ESI", address: "Highway 37" }, function (err, result)...