You're reading from Node.js for Beginners

Product type Book

Published in May 2024

Publisher Packt

ISBN-13 9781803245171

Pages 382 pages

Edition 1st Edition

Languages

JavaScript

Concepts

Web Programming

Author (1):

Ulises Gascón

Table of Contents (25) Chapters

Preface

1. Part 1: Node.js Overview and JavaScript Language

2. Chapter 1: Introduction to Node.js

3. Chapter 2: Setting Up the Development Environment

4. Chapter 3: JavaScript Fundamentals

5. Chapter 4: Asynchronous Programming

6. Part 2: Node.js Ecosystem and Architecture

7. Chapter 5: Node.js Core Libraries

8. Chapter 6: External Modules and npm

9. Chapter 7: Event-Driven Architecture

10. Chapter 8: Testing in Node.js

11. Part 3: Web Application Fundamentals

12. Chapter 9: Handling HTTP and REST APIs

13. Chapter 10: Building Web Applications with Express

14. Part 4: Building Solid Web Applications with Node.js

15. Chapter 11: Building a Web Application Project from Scratch

16. Chapter 12: Data Persistence with MongoDB

17. Chapter 13: User Authentication and Authorization with Passport.js

18. Chapter 14: Error Handling in Node.js

19. Chapter 15: Securing Web Applications

20. Part 5: Mastering Node.js Deployment and Portability

21. Chapter 16: Deploying Node.js Applications

22. Chapter 17: Dockerizing a Node.js Application

23. Index

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Structuring core libraries

Over the years, Node.js has grown a lot, and the core libraries too. There are many libraries available for us to use, and it is important to know how they are structured to be able to use them properly.

Most of the core libraries are quite simple and are structured in a similar way so you know what to expect in practical terms. Once you know how to use one of them, you will be able to use the rest of them without any problem.

Furthermore, you will be able to create your own libraries and publish them in npm, and other developers will be able to use them easily, but we will talk about this in the next chapter.

The library structure

Let’s look at the fs library as an example. The fs library is used to work with the file system, and it is one of the most used libraries in Node.js.

Any library that performs I/O operations is asynchronous. Historically, Node.js has offered two ways to handle I/O operations: callbacks or synchronous functions...