How to Set Up a MEAN Stack Development Environment

 The MEAN stack is a popular JavaScript-based technology stack for building modern web applications. It includes MongoDB, Express.js, Angular, and Node.js—together forming a powerful full-stack development environment. Whether you're a beginner or switching from another stack, setting up the MEAN stack is straightforward if you follow the right steps. Here’s a complete guide to get you started.

1. Install Node.js and npm

Node.js is the runtime that allows you to run JavaScript on the server side. npm (Node Package Manager) comes bundled with Node.js and is used to install project dependencies.

Visit https://nodejs.org

Download the latest LTS version for your OS

Install and verify:

bash

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node -v

npm -v

2. Install MongoDB

MongoDB is the NoSQL database used in the MEAN stack. You can either install it locally or use a cloud-based service like MongoDB Atlas.

Visit https://www.mongodb.com/try/download/community

Follow the installer steps

Start MongoDB service:

bash

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mongod

For cloud:

Go to https://www.mongodb.com/cloud/atlas

Create a free cluster and get your connection URI.

3. Install Angular CLI

Angular is the frontend framework in the MEAN stack. Use the Angular CLI to quickly scaffold and manage Angular applications.

Install globally:

bash

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npm install -g @angular/cli

Verify:

bash

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ng version

Create a new Angular project:

bash

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ng new frontend

cd frontend

ng serve

4. Set Up Express and Node.js Backend

Create a folder for your backend application:

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mkdir backend

cd backend

npm init -y

npm install express mongoose cors

Create a basic Express server (index.js):

javascript

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const express = require('express');

const app = express();

const mongoose = require('mongoose');

const cors = require('cors');

app.use(cors());

app.use(express.json());

app.get('/', (req, res) => {

  res.send('Hello from backend!');

});

app.listen(5000, () => console.log('Server running on port 5000'));

Run the backend server:

bash

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node index.js

5. Connect Frontend and Backend

To connect Angular with Express:

Use Angular’s HttpClient to make API requests to http://localhost:5000/

Enable CORS in your backend to allow cross-origin requests

Final Thoughts

Setting up the MEAN stack environment prepares you for full-stack development with JavaScript across both frontend and backend. With your tools in place, you can now begin building dynamic, scalable web applications with ease.

Learn MEAN Stack Training Course

Read more: 

Why Choose MEAN Stack for Web Development?

Visit Quality Thought Training Institute
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