Node.js MongoDB Insert Record

Node.js MongoDB Insert Record

When working with Node.js and MongoDB, one of the most common tasks is inserting data into a collection. MongoDB provides simple methods like insertOne() and insertMany() to make this process quick and efficient. Lets explore how to use these methods with practical examples.

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Insert a Single Record

The insertOne() method is used to insert a single record into a MongoDB collection. The method takes an object as its first argument, where each key-value pair represents a field and its value in the document.

Example: Inserting a single record in the “employees” collection

Create a JavaScript file named insert.js, and add the following code:

var MongoClient = require('mongodb').MongoClient;  
var url = "mongodb://localhost:27017/MongoDatabase";  
MongoClient.connect(url, function(err, db) {  
  if (err) throw err;  
  var myobj = { name: "Ajeet Kumar", age: "28", address: "Delhi" };  
  db.collection("employees").insertOne(myobj, function(err, res) {  
    if (err) throw err;  
    console.log("1 record inserted");  
    db.close();  
  });  
});  

Now, open your terminal and run the following command:

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node insert.js

Youll see the message 1 record inserted in the console, which confirms that your record has been successfully added to the MongoDB collection.

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Insert Multiple Records

To insert multiple records at once, MongoDB provides the insert() method (or the newer insertMany() method). This method accepts an array of objects, where each object represents a record you want to insert.

Example: Inserting multiple records in the “employees” collection

SQL Tutorial :

Create a JavaScript file named insertall.js, and add the following code:

var MongoClient = require('mongodb').MongoClient;  
var url = "mongodb://localhost:27017/MongoDatabase";  
MongoClient.connect(url, function(err, db) {  
  if (err) throw err;  
  var myobj = [     
    { name: "Mahesh Sharma", age: "25", address: "Ghaziabad"},  
    { name: "Tom Moody", age: "31", address: "CA"},  
    { name: "Zahira Wasim", age: "19", address: "Islamabad"},  
    { name: "Juck Ross", age: "45", address: "London"}  
  ];  
  db.collection("employees").insert(myobj, function(err, res) {  
    if (err) throw err;  
    console.log("Number of records inserted: " + res.insertedCount);  
    db.close();  
  });  
});  

Run the script using the following command:

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node insertall.js

After running this command, youll see an output indicating that multiple records have been successfully inserted into the collection.

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