Connect MongoDB with Node.js using mongoose

In this tutorial, we will learn how to connect MongoDB with Node.js using Mongoose and Express.js.

MongoDB is a popular NoSQL database that stores data in a JSON-like format. Node.js is a runtime environment that allows you to run JavaScript code on the server-side. Mongoose is a MongoDB object modeling tool that provides a straight-forward and schema-based solution to model your application data.

Step 1: Install MongoDB

Firstly, you need to install MongoDB on your machine. You can download and install MongoDB from the official website: https://www.mongodb.com

Step 2: Install Node.js

Next, you need to install Node.js on your machine. You can download and install Node.js from the official website: https://nodejs.org

Step 3: Install Mongoose

Now, you need to install Mongoose in your Node.js project. You can do this by running the following command in your project directory:


npm install mongoose


Step 4: Create a Node.js project

Create a new Node.js project by running the following commands in your terminal:


mkdir myproject
cd myproject
npm init -y


Step 5: Connect MongoDB with Node.js using Mongoose

Now, create a new JavaScript file in your project directory and add the following code:


const mongoose = require('mongoose');

mongoose.connect('mongodb://localhost/mydatabase', { useNewUrlParser: true })
.then(() => console.log('MongoDB connected'))
.catch(err => console.log(err));


This code will connect your Node.js project to a MongoDB database named ‘mydatabase’ running on localhost. Replace ‘mydatabase’ with the name of your database.

Step 6: Running your Node.js application

Finally, run your Node.js application by running the following command in your terminal:


node yourfile.js


Your application should now connect to the MongoDB database using Mongoose. Congratulations!