Express.js Tutorial | Learn Web Application Development with Node.js
Explore our Express.js Tutorial, covering basic to advanced concepts of Express.js, a minimal and flexible Node.js web application framework. Learn about routing, middleware, templating, RESTful APIs, authentication, error handling, debugging, and best practices. Get hands-on experience with Express installation, project setup, and real-world applications. Perfect for beginners and professionals aiming to build scalable web applications.
What is Express?
Express offers a minimalistic interface for building applications. It provides the essential tools to develop apps, and it is highly flexible due to the numerous modules available on npm (Node Package Manager) that can be easily integrated with Express.
Express was created by TJ Holowaychuk and is maintained by the Node.js Foundation along with many open-source contributors.
Why Choose Express?
Unlike other frameworks like Rails and Django, which have a prescribed way of building applications, Express offers more flexibility. It doesn't enforce a specific approach, giving developers the freedom to choose how to build their applications. This "unopinionated" nature makes Express highly adaptable and modular.
Pug (formerly Jade)
Pug is a concise and powerful templating language used with Express to generate HTML. Previously known as Jade, Pug provides the following features:
- Produces HTML efficiently
- Supports dynamic code for interactive pages
- Encourages reusability and the DRY (Don't Repeat Yourself) principle
Pug is one of the most popular templating languages used with Express for rendering dynamic HTML content.
MongoDB and Mongoose
MongoDB is an open-source, document-based database designed for scalability and ease of development. It stores data in flexible, JSON-like documents, which makes it a popular choice for web applications.
Mongoose is a Node.js library that provides a straightforward API for interacting with MongoDB databases. It simplifies data modeling, validation, and querying, making it easier to integrate MongoDB with an Express application.
With Express, MongoDB, and Mongoose, developers can build scalable and efficient web applications, from simple websites to complex backend services.
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