Learn to build web applications using Node.js and the Express framework.

Become a MEAN Stack Developer

Node.js is a runtime environment that enables JavaScript to run outside the browser. In this module, we'll learn the fundamentals of Node.js to build portable applications. We'll learn about the components of Node.js and make patterns using these. We'll also explore the API to learn how to create modules and write code for unique data files. Moreover, we'll delve into the features and practices of JavaScript and build a REST API using the Express framework from scratch. Moving on, we'll use Passport.js and JSON web tokens to establish authentication tokens. We’ll then create a live trivia game with Socket.IO. By the end of this module, we'll be equipped with extensive knowledge to build rich and comprehensive Node.js applications running on the server with JavaScript.

Learn Node.js from Scratch

A library to create real-time, bidirectional, and event-based communication

A library to create real-time, unidirectional, and event-based communication

A library to create real-time, unidirectional, and non-event-based communication

A library to create real-time, bidirectional, and non-event-based communication

**(True or False)** In AJAX polling, the client opens a connection with the server, sends an initial HTTP request, and waits for a response from the server.

(True or False) In AJAX polling, the client opens a connection with the server, sends an initial HTTP request, and waits for a response from the server.

**(True or False)** In long polling, the client connects with the server and sends repeated HTTP requests at regular intervals.

(True or False) In long polling, the client connects with the server and sends repeated HTTP requests at regular intervals.

Socket.IO uses ________ as the primary transport mechanism in the browser.

Socket.IO uses ________ as the primary transport mechanism in the browser.

**(True or False)** In <t>Socket.IO</t>, every event consists of a sender and a receiver. If the server is the sender, then the client is the receiver. If the client is the sender, then the server is the receiver.

(True or False) In <t>Socket.IO</t>, every event consists of a sender and a receiver. If the server is the sender, then the client is the receiver. If the client is the sender, then the server is the receiver.

Check your understanding of what you've learned in this chapter by taking this quiz.

Node.js Overview

The Node.js API

JavaScript Essentials Review

Building a RESTful API with Express

Authentication with Passport.js and JSON Web Tokens

Build a Live Trivia Game with Socket.IO

Appendix

Conclusion

Quiz Yourself on Building Live Applications with Socket.IO