Complete Node JS Backend Web Development with AI

In this lecture, you will understand what Node.js is and why it is important in modern web development.

• Learn how JavaScript runs outside the browser using Node.js

• Understand the event-driven and non-blocking architecture

• Discover why Node.js is fast and scalable

• Explore the key advantages of using Node.js for backend development

• See real-world use cases and applications

• Know when to choose Node.js for your projects

By the end of this lecture, you will have a clear foundational understanding before moving to practical implementation.

In this lecture, you will learn how to install Node.js on your system and verify that it is properly set up.

• Understand where to download Node.js from

• Learn the step-by-step installation process

• Explore the difference between LTS and Current versions

• Check Node.js installation using command line

• Verify npm (Node Package Manager) installation

• Troubleshoot common installation issues

By the end of this lecture, your development environment will be ready to start working with Node.js.

In this lecture, you will understand the core architecture of Node.js and how the Event Loop works behind the scenes.

• Learn how Node.js handles requests using a single-threaded model

• Understand the concept of the Event Loop

• Explore synchronous vs asynchronous execution

• See how non-blocking I/O improves performance

• Understand the role of callbacks in the Event Loop

• Visualize how Node.js manages multiple operations efficiently

By the end of this lecture, you will clearly understand how Node.js achieves high performance and scalability.

In this lecture, you will learn how to create and run your first program using Node.js.

• Set up a simple JavaScript file for Node.js

• Write your first basic Node.js code

• Run the program using the command line

• Understand how Node.js executes your file

• Learn about console.log() and basic output

• Make small modifications to see how the program behaves

By the end of this lecture, you will successfully run your first Node.js program and gain confidence to move

In this lecture, you will understand how modules work in Node.js, including both CommonJS and modern ES Module syntax.

• Learn what modules are and why they are important

• Understand the difference between require() and import

• Explore module.exports and export

• Use export default and named exports

• Configure Node.js to work with ES Modules

• See practical examples of importing and exporting functionality

By the end of this lecture, you will confidently use both CommonJS and ES Module syntax in your Node.js applications.

In this lecture, you will learn how to properly set up a complete Node.js development environment for your projects.

• Install and configure Node.js on your system

• Understand the role of npm (Node Package Manager)

• Initialize a project using npm init

• Create and manage a package.json file

• Install and manage project dependencies

• Understand project folder structure and best practices

By the end of this lecture, you will have a fully configured Node.js environment ready for real-world development.

In this lecture, you will learn how to create a basic HTTP server using Node.js and improve development workflow with Nodemon.

• Understand the http module in Node.js

• Create a simple HTTP server step by step

• Send responses to the browser

• Install and configure Nodemon

• Automatically restart the server on file changes

• Improve development efficiency with live reloading

By the end of this lecture, you will successfully build and run a basic HTTP server with automatic restart functionality.

In this lecture, you will learn how to handle HTTP requests and responses in Node.js.

• Understand the structure of an HTTP request and response

• Access request methods, URLs, and headers

• Send different types of responses (text, JSON, HTML)

• Set status codes and response headers

• Handle basic routing logic

• Manage incoming data from client requests

By the end of this lecture, you will be able to properly manage client-server communication in your Node.js applications.

In this lecture, you will understand request headers and different response types in Node.js.

• Learn what request headers are and why they are important

• Access and read headers from client requests

• Understand common headers like Content-Type and Authorization

• Set response headers properly

• Explore different response types (text, JSON, HTML, files)

• Understand how headers control data format and communication

By the end of this lecture, you will confidently manage headers and response types in your Node.js applications.

In this lecture, you will learn how to serve JSON and HTML responses using Node.js.

• Understand the difference between JSON and HTML responses

• Send JSON data to the client

• Serve basic HTML content from the server

• Set the correct Content-Type header

• Handle response status codes properly

• Test responses in the browser and using tools

By the end of this lecture, you will be able to send structured data and web pages from your Node.js server.

In this lecture, you will understand the JavaScript runtime in Node.js and the concept of Non-Blocking I/O.

• Learn what a JavaScript runtime environment is

• Understand how Node.js executes JavaScript code outside the browser

• Explore the concept of blocking vs non-blocking operations

• Understand how Non-Blocking I/O improves performance

• See how asynchronous operations prevent application slowdown

• Visualize how Node.js handles multiple tasks efficiently

By the end of this lecture, you will clearly understand how Node.js achieves high performance using its runtime and non-blocking architecture.

In this lecture, you will understand the concept of callbacks in Node.js and how they enable asynchronous programming.

• Learn what a callback function is

• Understand how callbacks work in asynchronous operations

• See practical examples of callbacks in Node.js

• Explore error-first callback pattern

• Understand callback execution order

• Identify common issues like callback nesting

By the end of this lecture, you will clearly understand how callbacks work and how they help manage asynchronous tasks in Node.js.

In this lecture, you will understand what Callback Hell is and the problems it creates in Node.js applications.

• Learn what Callback Hell means

• See how deeply nested callbacks reduce code readability

• Understand how it makes debugging difficult

• Identify issues related to error handling

• Explore real examples of callback nesting

• Understand why better alternatives are needed

By the end of this lecture, you will clearly recognize the limitations of callbacks and be ready to explore improved asynchronous patterns.

In this lecture, you will understand the concept of Promises in Node.js and how they improve asynchronous programming.

• Learn what a Promise is and why it is used

• Understand the three states of a Promise (pending, fulfilled, rejected)

• Use .then() and .catch() for handling results and errors

• See how Promises solve the problem of Callback Hell

• Chain multiple asynchronous operations

• Explore practical examples of Promises in Node.js

By the end of this lecture, you will confidently use Promises to write cleaner and more manageable asynchronous code.

In this lecture, you will learn how to use Async/Await in Node.js to write cleaner and more readable asynchronous code.

• Understand what async and await keywords do

• Convert Promise-based code into Async/Await syntax

• Handle errors using try...catch

• Write sequential asynchronous operations clearly

• Improve code readability and maintainability

• Compare Async/Await with Promises

By the end of this lecture, you will be able to write clean, structured, and professional asynchronous code using Async/Await.

In this lecture, you will learn how to handle errors effectively in asynchronous code using Node.js.

• Understand common errors in asynchronous operations

• Handle errors in callbacks using the error-first pattern

• Use .catch() to manage Promise rejections

• Apply try...catch with Async/Await

• Prevent application crashes with proper error handling

• Follow best practices for robust and secure applications

By the end of this lecture, you will be able to manage errors confidently and build more reliable Node.js applications.

In this lecture, you will learn how to read files using Node.js and work with the File System module.

• Understand the fs module in Node.js

• Read files synchronously and asynchronously

• Handle file reading errors properly

• Work with text and JSON files

• Use callbacks and Promises for file operations

• Display file data in the console or server response

By the end of this lecture, you will be able to read and process files efficiently in your Node.js applications.

In this lecture, you will learn how to write and update files using Node.js and the File System module.

• Understand how to create new files

• Write data to files using synchronous and asynchronous methods

• Update or append data to existing files

• Handle file writing errors properly

• Work with text and JSON data

• Follow best practices for safe file operations

By the end of this lecture, you will be able to create, modify, and manage files effectively in your Node.js applications.

In this lecture, you will learn how to delete and rename files using Node.js and the File System module.

• Understand how to delete files safely

• Rename files using built-in methods

• Handle errors during file operations

• Work with synchronous and asynchronous approaches

• Understand file path handling basics

• Follow best practices to avoid accidental data loss

By the end of this lecture, you will be able to manage file deletion and renaming operations confidently in your Node.js applications.

In this lecture, you will learn how to work with directories using Node.js and the File System module.

• Create new directories

• Read the contents of a directory

• Rename existing directories

• Delete directories safely

• Handle errors during directory operations

• Understand path management basics

By the end of this lecture, you will be able to create, manage, and organize folders effectively in your Node.js applications.

In this lecture, you will learn how to copy files and create zip archives using file streaming in Node.js.

• Understand the concept of streams in Node.js

• Learn why streaming is efficient for large files

• Copy files using readable and writable streams

• Use pipe() to transfer data efficiently

• Create zip files using streaming techniques

• Handle errors during streaming operations

By the end of this lecture, you will be able to efficiently copy and compress files using streams in your Node.js applications.

In this lecture, you will understand what Express.js is and why it is one of the most popular frameworks used with Node.js for backend development.

• Learn what Express.js is and how it works on top of Node.js

• Understand why it is preferred over the native http module

• Explore core features like routing and middleware

• See how Express simplifies API and web application development

• Understand its lightweight and flexible architecture

• Discover real-world use cases of Express applications

By the end of this lecture, you will clearly understand why Express.js is widely adopted for building scalable and maintainable backend applications.

In this lecture, you will learn how to install Express.js and create your first server using Node.js.

• Install Express using npm

• Set up a basic project structure

• Create a simple Express server

• Understand the app object and listen() method

• Define your first route

• Run and test the server in the browser

By the end of this lecture, you will successfully build and run your first Express server.

In this lecture, you will understand how routing works in Express.js and how it helps manage different endpoints in your application.

• Learn what routing is and why it is important

• Define routes using app.get(), app.post(), and other HTTP methods

• Handle route parameters and query strings

• Organize routes for better project structure

• Understand route order and matching behavior

• Test routes using browser and API tools

By the end of this lecture, you will be able to create and manage routes effectively in your Express applications.

In this lecture, you will learn how to work with route parameters and query strings in Express.js.

• Understand the difference between route parameters and query strings

• Define dynamic route parameters using :id syntax

• Access route parameters using req.params

• Read query strings using req.query

• Handle optional and multiple query parameters

• Validate and use parameters in real-world examples

By the end of this lecture, you will be able to extract and use dynamic data from URLs in your Express applications.

In this lecture, you will learn how to handle 404 – Page Not Found errors in Express.js applications.

• Understand what a 404 error means

• Learn why 404 errors occur in web applications

• Create a custom 404 route handler

• Send proper status codes using res.status()

• Return JSON or HTML responses for missing routes

• Improve user experience with meaningful error messages

By the end of this lecture, you will be able to handle undefined routes properly and provide professional error responses in your Express applications.

In this lecture, you will explore advanced routing techniques in Express.js to build more scalable and organized applications.

• Use Express Router for modular routing

• Create route groups and separate route files

• Apply middleware at the route level

• Handle multiple route handlers in a single endpoint

• Use route chaining for cleaner code

• Organize large applications using structured routing patterns

By the end of this lecture, you will be able to design and manage complex routing structures efficiently in your Express applications.

In this lecture, you will learn how to serve static files in Express.js applications.

• Understand what static files are (HTML, CSS, JavaScript, images)

• Use express.static() middleware

• Configure a public folder for static assets

• Serve multiple static directories

• Set up proper folder structure for frontend files

• Test static file serving in the browser

By the end of this lecture, you will be able to efficiently serve static content from your Express applications.

In this lecture, you will learn how to use template engines with Express.js, focusing on EJS for dynamic web pages.

• Understand what a template engine is and why it is used

• Install and configure EJS in an Express application

• Set the view engine in Express

• Create dynamic HTML pages using EJS

• Pass data from the server to templates

• Use layouts, partials, and reusable components

By the end of this lecture, you will be able to render dynamic web pages using EJS in your Express applications.

In this lecture, you will understand what middleware is in Express.js and how it works within a Node.js application.

• Learn what middleware functions are

• Understand the request–response cycle

• See how middleware executes using the next() function

• Explore built-in middleware in Express

• Create custom middleware functions

• Understand the role of middleware in logging, authentication, and validation

By the end of this lecture, you will clearly understand how middleware controls and enhances the flow of requests in Express applications.

In this lecture, you will learn about built-in middleware in Express.js and how to use them effectively in your application.

• Understand what built-in middleware is

• Use express.json() to handle JSON data

• Use express.urlencoded() to handle form data

• Serve static files using express.static()

• Apply middleware globally and at the route level

• Test middleware functionality with real examples

By the end of this lecture, you will be able to configure and use Express built-in middleware properly in your projects.

In this lecture, you will learn how to use third-party middleware in Express.js to extend the functionality of your application.

• Understand what third-party middleware is

• Install middleware packages using npm

• Integrate popular middleware into an Express app

• Configure middleware with custom options

• Apply middleware globally or to specific routes

• Understand real-world use cases like logging, security, and CORS

By the end of this lecture, you will be able to enhance your Express applications using powerful third-party middleware packages.

In this lecture, you will learn how to create custom middleware in Express.js to control and enhance request processing.

• Understand the structure of a middleware function

• Use req, res, and next() properly

• Create middleware for logging requests

• Build authentication and validation middleware

• Apply middleware globally or to specific routes

• Organize custom middleware in separate files

By the end of this lecture, you will be able to design and implement your own middleware to add custom functionality to your Express applications.

In this lecture, you will understand the fundamentals of RESTful APIs and the core REST principles used in modern backend development with Express.js.

• Learn what a RESTful API is

• Understand the concept of resources and endpoints

• Explore HTTP methods (GET, POST, PUT, DELETE)

• Understand stateless communication

• Learn about proper status codes

• Follow REST best practices for clean API design

By the end of this lecture, you will clearly understand how REST principles guide the design of scalable and maintainable APIs.

In this lecture, you will understand the most important HTTP methods used in RESTful APIs with Express.js.

• Learn the purpose of the GET method for retrieving data

• Understand how POST is used to create new resources

• Explore PUT for updating entire resources

• Understand PATCH for partial updates

• Learn how DELETE removes resources

• Follow best practices for choosing the correct HTTP method

By the end of this lecture, you will clearly understand how and when to use each HTTP method in real-world API development.

In this lecture, you will understand HTTP status codes and how they are used in RESTful APIs built with Express.js.

• Learn what HTTP status codes are and why they matter

• Understand 2xx success codes (200, 201, etc.)

• Explore 3xx redirection codes

• Understand 4xx client error codes (400, 401, 404, etc.)

• Learn 5xx server error codes (500, 503, etc.)

• Apply correct status codes in API responses

By the end of this lecture, you will be able to use proper HTTP status codes to build professional and well-structured APIs.

In this lecture, you will learn how to properly structure a RESTful API project using Express.js for scalability and maintainability.

• Understand the importance of clean project architecture

• Organize folders for routes, controllers, and models

• Separate business logic from routing logic

• Use middleware effectively in project structure

• Manage configuration and environment variables

• Follow industry best practices for scalable APIs

By the end of this lecture, you will be able to design a clean and professional structure for your RESTful API projects.

In this lecture, you will learn how to create API endpoints using Express.js without connecting to a database.

• Understand how to define RESTful routes

• Create GET, POST, PUT, and DELETE endpoints

• Store and manage data temporarily using in-memory arrays

• Send JSON responses to clients

• Handle request data using req.body

• Test API endpoints using browser or API tools

By the end of this lecture, you will be able to build and test fully functional API endpoints without using a database.

In this lecture, you will understand the basics of MongoDB and why it is widely used in modern backend development.

• Learn what MongoDB is and how it differs from relational databases

• Understand the concept of NoSQL databases

• Explore documents, collections, and databases

• Understand JSON-like data structure (BSON)

• Discover real-world use cases of MongoDB

• See how MongoDB fits into the Node.js and Express ecosystem

By the end of this lecture, you will have a clear foundational understanding of MongoDB and its role in building scalable applications.

In this lecture, you will learn how to install and configure MongoDB for your development environment.

• Download MongoDB from the official website

• Install MongoDB on your operating system

• Understand MongoDB Community Server setup

• Start and stop the MongoDB service

• Verify installation using the MongoDB shell or Compass

• Configure basic settings for local development

By the end of this lecture, you will have MongoDB properly installed and ready to use in your backend projects.

In this lecture, you will learn how to connect Node.js with MongoDB using Mongoose.

• Understand what Mongoose is and why it is used

• Install Mongoose using npm

• Establish a connection between Node.js and MongoDB

• Handle connection success and error events

• Configure connection options properly

• Test the database connection in your application

By the end of this lecture, you will be able to successfully connect your Node.js application to MongoDB using Mongoose.

In this lecture, you will learn how to create schemas and models in MongoDB using Mongoose within a Node.js application.

• Understand what a schema is in Mongoose

• Define fields, data types, and validations

• Create a model from a schema

• Understand how models interact with MongoDB collections

• Apply default values and required constraints

• Organize schema and model files properly

By the end of this lecture, you will be able to design structured data models and interact with MongoDB collections effectively.

In this lecture, you will learn how to perform CRUD operations using Mongoose with MongoDB in a Node.js application.

• Understand what CRUD (Create, Read, Update, Delete) means

• Create new documents using Mongoose models

• Read and filter data from MongoDB collections

• Update documents using different methods

• Delete single and multiple documents

• Handle errors during database operations

By the end of this lecture, you will be able to perform complete database operations confidently using Mongoose in your Node.js applications.