Mern

MERN Stack

Overview

MERN is a popular JavaScript stack for building dynamic web applications. It consists of four key technologies:

  • MongoDB – NoSQL database for storing application data.

  • Express.js – Lightweight backend framework for handling HTTP requests and APIs.

  • React.js – Frontend library for building interactive UI components.

  • Node.js – JavaScript runtime for executing server-side logic.

Key Features

    • Full-stack JavaScript development (same language for frontend and backend).

    • High performance and scalability with Node.js and MongoDB.

    • React provides a fast and interactive user experience.

    • RESTful APIs or GraphQL for seamless data communication.

Architecture

  • 1. Frontend (React.js)

    • Component-based UI for easy maintenance.

    • State management with Redux, Context API, or React Query.

    2. Backend (Node.js + Express.js)

    • Handles API requests, authentication, and business logic.

    • Middleware support for logging, authentication, and validation.

    3. Database (MongoDB)

    • NoSQL schema-less structure for flexibility.

    • Uses Mongoose ORM for data modeling.

Use Cases

      • Single Page Applications (SPAs)

      • Social Media Platforms

      • E-commerce Websites

      • Real-time Chat Applications

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