Node.js Design Patterns: Level up your Node.js skills and design production-grade applications using proven techniques , Fourth Edition

Luciano Mammino

Mario Casciaro

$41.98 ~~$59.99~~

5 (1 Ratings)

Paperback Sep 2025 732 pages 4th Edition

Luciano Mammino

Mario Casciaro

$41.98 ~~$59.99~~

5 (1 Ratings)

Paperback Sep 2025 732 pages 4th Edition

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Node.js Design Patterns

Summary

In this chapter, you have seen how the Node.js platform is built upon a few important principles that shape both its internal architecture and the code we write. You have learned that Node.js has a minimal core and that embracing the "Node way" means writing modules that are smaller, simpler, and that expose only the minimum functionality necessary.Next, you discovered the reactor pattern, which is the pulsating heart of Node.js, and dissected the internal architecture of the platform runtime to reveal its other pillars: V8, libuv, bindings, and the core JavaScript library.Finally, we analyzed some of the main characteristics of using JavaScript in Node.js compared to the browser and learned how TypeScript can be leveraged when working with Node.js.Besides the obvious technical advantages enabled by its internal architecture, Node.js draws significant interest due to the principles it embodies and the vibrant community surrounding it. Its focus on simplicity and efficiency...

CommonJS modules

As we’ve already mentioned throughout this chapter, CommonJS is gradually being replaced by ES modules, and it’s now recommended to use ES modules for new projects and libraries. However, CommonJS is not officially deprecated, and given its long-standing role in the JavaScript ecosystem, it’s still important to have a basic understanding of it. This knowledge will enable you to work confidently with older code bases and libraries.

Let’s have a look at the basic syntax of CommonJS.

Two of the main concepts of the CommonJS specification are as follows:

require, which is a function that allows you to import a module from the local filesystem.
exports and module.exports, which are special variables that can be used to export public functionality from the current module.

A simple CommonJS module might look like this:

// math.cjs
'use strict'
function add(a, b) {
  return a + b
}
module.exports...

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Key benefits

Gain a deep understanding of the Node.js philosophy, its core components, and the solutions in its ecosystem
Avoid common pitfalls in applying proven patterns to create robust, maintainable Node.js applications
Enhance your development skills through a wealth of real-world examples and case studies

Description

Node.js underpins much of modern web development, reliably powering APIs and full-stack apps across all industries. Authors Luciano Mammino and Mario Casciaro offer a practical guide that unpacks the JavaScript runtime so you can write reliable, high-performance Node.js apps. Building on the highly rated third edition, this new edition adds fresh case studies and the latest Node.js developments: newer APIs and libraries, ESM improvements, practical security and production tips, and guidance on using Node.js with TypeScript. It also introduces a new chapter on testing that gives you a full introduction to testing philosophy and practical guidance on writing unit, integration, and end-to-end tests, giving you the confidence to write functional, stable, and reliable code. Real-world, end-to-end examples throughout the book show how to build microservices and distributed systems with Node.js, integrating production-proven technologies such as Redis, RabbitMQ, LevelDB, and ZeroMQ, the same components you’ll find in scalable deployments at companies of all sizes. End-of-chapter exercises consolidate your understanding. By the end of this Node.js book, you’ll have the design patterns, mindset, and hands-on skills every serious Node.js professional needs to confidently architect robust, efficient, and maintainable applications.

Who is this book for?

This book is for you if you’re a developer or software architect with basic knowledge of JavaScript and Node.js and want to get the most out of these technologies to maximize productivity, design quality, and scalability. It’ll help you level up from junior to senior roles. This book is a tried-and-tested reference guide for readers at all levels. Even those with more experience will find value in the more advanced patterns and techniques presented. You’re expected to have an intermediate understanding of web application development, databases, and software design principles.

What you will learn

Understand Node.js basics and its async event-driven architecture
Write correct async code using callbacks, promises, and async/await
Harness Node.js streams to create data-driven processing pipelines
Implement trusted software design patterns for production-grade applications
Write testable code and automated tests (unit, integration, E2E)
Use advanced recipes: caching, batching, async init, offload CPU-bound work
Build and scale microservices and distributed systems powered by Node.js

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ZhiChao Apr 20, 2025

This book is very good and has benefited me a lot. It is also the best and most high-quality Node.js book I have seen so far. I am very grateful to the author for his hard work. A small suggestion: adding a chapter specifically describing RxJS and comparing it to Promise would make the book much better and more powerful!

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Node.js Design Patterns: Level up your Node.js skills and design production-grade applications using proven techniques , Fourth Edition

What do you get with Print?

Node.js Design Patterns

Summary

The need for modules

Module systems in JavaScript and Node.js

The revealing module pattern

ES modules

Using ES modules in Node.js

CommonJS modules

ES modules and CommonJS—differences and interoperability

Strict mode

Top-level await

Using modules in TypeScript

Summary

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Node.js Design Patterns: Level up your Node.js skills and design production-grade applications using proven techniques , Fourth Edition

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