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Building a full-stack CRUD (Create, Read, Update, Delete) application is a foundational skill for web developers. In this tutorial, we’ll create a complete application using Node.js for the backend and MongoDB for the database. This app will also include user login and logout functionalities using JSON Web Tokens (JWT). Prerequisites Before you begin, ensure you have the following: Node.js installed on your system. MongoDB installed locally or access to a MongoDB Atlas cluster. A basic understanding of JavaScript and REST APIs. A text editor like Visual Studio Code. Step 1: Setting Up the Project 1.1 Initialize the Project Open your terminal and create a new project directory: mkdir fullstack-crud-nodejs-mongodb cd fullstack-crud-nodejs-mongodb Initialize a new Node.js project: npm init -y Install the required dependencies: npm install express mongoose bcryptjs jsonwebtoken dotenv cors body-parser npm install --save-dev nodemon 1.2 Project Structure Create the following folder structur...

MongoDB is one of the most popular NoSQL databases, known for its flexibility and scalability. Whether you're a developer or just starting your journey in database management, this guide will introduce you to the basics of MongoDB and show you how to start querying like a pro. What is MongoDB? MongoDB is a NoSQL database that stores data in a flexible, JSON-like format called BSON (Binary JSON). Unlike traditional relational databases, it doesn’t require predefined schemas, making it ideal for unstructured or rapidly changing data. Key Features: Document-Oriented : Stores data as documents in collections. Schema-Less : Allows dynamic data structures. Scalable : Easily handles large datasets. High Performance : Optimized for read and write operations. Real-World Use Cases: Content management systems IoT applications E-commerce platforms Setting Up MongoDB Before you can start querying, you need to set up MongoDB. Install MongoDB: Download MongoDB from the official website. Follow th...