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Node.js Design Patterns

You're reading from Node.js Design Patterns Design and implement production-grade Node.js applications using proven patterns and techniques

Product type Paperback

Published in Jul 2020

Publisher Packt

ISBN-13 9781839214110

Length 664 pages

Edition 3rd Edition

Languages

JavaScript

Tools

Node.js

Concepts

Design Patterns

Authors (2):

Luciano Mammino

Mario Casciaro

View More author details

Table of Contents (16) Chapters

Preface

1. The Node.js Platform

2. The Module System FREE CHAPTER

3. Callbacks and Events

4. Asynchronous Control Flow Patterns with Callbacks

5. Asynchronous Control Flow Patterns with Promises and Async/Await

6. Coding with Streams

7. Creational Design Patterns

8. Structural Design Patterns

9. Behavioral Design Patterns

10. Universal JavaScript for Web Applications

11. Advanced Recipes

12. Scalability and Architectural Patterns

13. Messaging and Integration Patterns

14. Other Books You May Enjoy

15. Index

Adapter

The Adapter pattern allows us to access the functionality of an object using a different interface.

A real-life example of an adapter would be a device that allows you to plug a USB Type-A cable into a USB Type-C port. In a generic sense, an adapter converts an object with a given interface so that it can be used in a context where a different interface is expected.

In software, the Adapter pattern is used to take the interface of an object (the adaptee) and make it compatible with another interface that is expected by a given client. Let's have a look at Figure 8.3 to clarify this idea:

Figure 8.3: Adapter pattern schematic

In Figure 8.3, we can see how the adapter is essentially a wrapper for the adaptee, exposing a different interface. The diagram also highlights the fact that the operations of the adapter can also be a composition of one or more method invocations on the adaptee. From an implementation perspective, the most common technique is...

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Authors (2)

Mario Casciaro

Mario Casciaro

Mario Casciaro is a software engineer and entrepreneur, passionate about technology, science and open source knowledge. Mario graduated with a master's degree in software engineering and started his professional career at IBM where he worked for several years on different enterprise products such as Tivoli Endpoint Manager, Cognos Insight, and SalesConnect. Next, he moved to D4H Technologies, a growing SaaS company, to lead the development of a new bleeding-edge product for managing emergency operations in real time. Currently, Mario is the co-founder and CEO of Sponsorama.com, a platform to help online projects raise funds through corporate sponsorship. Mario is also the author of the first edition of Node.js Design Patterns.

See other products by Mario Casciaro

Luciano Mammino

Luciano Mammino

Luciano Mammino is a software engineer born in 1987, the same year that the Nintendo released Super Mario Bros in Europe, which by chance is his favorite video-game. He started coding at the age of 12 using his father's old Intel 386, provided only with the DOS operating system and the qBasic interpreter. After a master's degree in computer science he developed his programming skills mostly as a web developer working mainly as freelancer for companies and startups all around Italy. After a start-up parenthesis of 3 years as CTO and co-founder of Sbaam.com in Italy and in Ireland, he decided to relocate in Dublin to work as senior PHP engineer at Smartbox. He loves developing open source libraries and working with frameworks such as Symfony and Express. He is convinced that the JavaScript fame is still at the very beginning and that this technology will have a huge impact in the future of most of the web-and mobile-related technologies. For this reason, he spends most of his free time improving his knowledge of JavaScript and playing with Node.js.

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