Express.js is a minimal and flexible Node.js web application framework used to build server-side applications and APIs. It simplifies backend development by providing powerful features for handling HTTP requests, routing, middleware, and templating, making it a core component of the popular MERN (MongoDB, Express, React, Node) and MEAN (MongoDB, Express, Angular, Node) stacks. Learning Express.js is essential for aspiring web developers because it enables them to create efficient, scalable backend systems and RESTful APIs, skills that are in high demand for modern web development.
A tutor can accelerate this process by providing a structured learning path, hands-on projects, and real-world examples to help learners grasp key concepts, such as middleware, routing, and integration with databases, ensuring they are job-ready as backend developers.
Chapter 1: Introduction to Express.js
Lesson 1: What is Express.js? Definition, history, and its role in web development
Lesson 2: Evolution of Express.js: From early versions to the latest release
Lesson 3: Express.js Use Cases: APIs, web applications, microservices, and more
Lesson 4: Setting Up the Development Environment: Installing Node.js, Express.js, and npm
Chapter 2: Basic Syntax and Core Concepts
Lesson 1: Understanding Middleware: Built-in, third-party, and custom middleware
Lesson 2: Handling HTTP Requests and Responses: GET, POST, PUT, DELETE
Lesson 3: Routing Basics: Defining routes and handling dynamic parameters
Lesson 4: Using Express.js with Template Engines (Pug, EJS, Handlebars)
Chapter 3: Advanced Routing in Express.js
Lesson 1: Route Parameters and Query Strings
Lesson 2: Router Modules and Modular Routing
Lesson 3: Handling Route Groups and Middleware Chaining
Lesson 4: Error Handling Middleware for Robust Applications