Gain insights into Node.js, its components, and build patterns. Explore APIs, create modules, and build a REST API using Express. Discover authentication with Passport.js and JSON web tokens.

docker.tar.gz

Chapter 1

Chapter 2 Chapter 3.1

Chapter 3.2

Chapter 4.1

Chapter 3.3

Chapter 4.2-Postman

Chapter 5-Postman

Chapter 6.1

Chapter 2-Exercise

Chapter 4.2-Postman-copy

Chapter 5-Postman-copy

Built on Chrome’s V8 JavaScript engine, Node.js is a runtime environment that enables JavaScript to run outside the browser. This course will help you learn the fundamentals of Node.js to build portable applications.

You’ll learn about the components and build patterns of Node.js. You’ll also explore the API to learn how to create modules and write code to unique data files. Moreover, you’ll delve into the features and practices of JavaScript and build a REST API using the Express framework from scratch. This will set up authentication tokens with Passport.js and JSON web tokens, and finally build a live trivia game with Socket.IO.

By the end of this course, you’ll be equipped with the extensive knowledge to build rich and comprehensive Node.js applications running on the server with JavaScript.

Learn Node.js from Scratch

# Overview

The `fs` module is a built-in global Node.js module that exposes an API for accessing, manipulating, and interacting with the file system.

We'll use a few methods from the `fs` module to read and write information to `test.txt`.

All `fs` operations are available either in synchronous or asynchronous forms ([click here](https://nodejs.org/api/fs.html#fs_file_system) for details).

In this chapter, we’ll use a newer feature of `fs`, called the [`fs` Promises API](https://nodejs.org/api/fs.html#fs_fs_promises_api), which returns `Promise` objects so that we can use the `async` and `await` keywords instead of callbacks to handle asynchronicity.

We can access the API by importing it at the top of the file via `require('fs').promises`.

# Load the `fs` module

The module system uses the `require()` function to load in a module and access its contents.

To load in the `fs` module and get access to its properties and methods, we use `require()` at the top of the `file-system.js` file:

The fs Module

Before We Begin

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

Wrap Up!

Appendix

The fs Module

Overview