Mario Casciaro - Node.js Design Patterns: Design and implement production-grade Node.js applications using proven patterns and techniques, 3rd Edition

Node.js Design Patterns

Third Edition

Design and implement production-grade Node.js applications using proven patterns and techniques

Mario Casciaro

Luciano Mammino

BIRMINGHAM - MUMBAI

Node.js Design Patterns

Third Edition

Copyright 2020 Packt Publishing

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Producer: Tushar Gupta

Acquisition Editor Peer Reviews: Suresh Jain

Project Editor: Tom Jacob

Content Development Editors: Joanne Lovell, Bhavesh Amin

Copy Editor: Safis Editing

Technical Editor: Saby D'silva

Proofreader: Safis Editing

Indexer: Manju Arasan

Presentation Designer: Sandip Tadge

First published: December 2014

Second Edition: July 2016

Third Edition: July 2020

Production reference: 1240720

Published by Packt Publishing Ltd.

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ISBN 978-1-83921-411-0

www.packt.com

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Mario Casciaro is a software engineer and entrepreneur. Since he was a child he's been in love with building things, from LEGO spaceships to programs written on his Commodore 64, his first computer. When in college, he used to work more on side projects than on assignments and he published his first open source project on SourceForge back in 2006, it was around 30,000 lines of C++ code. After graduating with a master's degree in software engineering, Mario worked at IBM for a number of years, first in Rome, then in the Dublin Software Lab. He currently splits his time between Var7 Technologieshis own software companyand his role as lead engineer at D4H Technologies where he creates software for emergency response teams. He is a big supporter of pragmatism and simplicity.

The story of this book starts with you all who are reading this book. You make all our efforts worthwhile. Thanks also to the readers who contributed to the success of the first two editions, providing invaluable feedback, writing reviews, and spreading the word about the book.

Thanks to the Packt team, who worked hard to make this book a reality; thanks to Tom Jacob, Jonathan Malysiak, Saby D'silva, Bhavesh Amin, Tushar Gupta, Kishor Rit, Joanne Lovell.

For this book, I had the honor to work with a team of top-class technical reviewers: Roberto Gambuzzi, Minwoo Jung, Kyriakos Markakis, Romina Miraballes, Peter Poliwoda, Liran Tal, and Tomas Della Vedova. Thanks for lending your expertise to make this book perfect.

Thanks to Hiroyuki Musha who translated the second edition of Node.js Design Patterns to Japanese and improved it in the process.

However, the top of the podium goes to Luciano. It has been a tremendous experience and also an honor coauthoring this book with him. Thank you Luciano for being both a great professional and an all-around great person. Hopefully, we'll have the chance to work again together in the future.

Thanks to my Dad, Mom, Alessandro, and Elena for being there for me even if we are far away.

Finally, I'd like to say a heartfelt thank you to Miriam, the love of my life, for inspiring and supporting me in all my endeavors. There are still many more adventures awaiting us. And to Leonardo, thanks for filling our life with joy. Your dad loves you very much.

Luciano Mammino was born in 1987, the same year Super Mario Bros. was released in Europe, which, by chance, is his favorite game! He started coding at the age of 12, hacking away with his father's old i386 armed only with MS-DOS and the QBasic interpreter. Since then he has been a professional software developer for more than 10 years. Luciano is currently wearing the hat of principal software engineer at FabFitFun in Dublin where he builds microservices and scaling applications for millions of users.

Luciano loves the cloud, full-stack web development, Node.js, and serverless. Among other things, Luciano runs Fullstack Bulletin ( fstack.link ), a weekly newsletter for ambitious full-stack developers and Serverlesslab.com , bespoke training courses to foster serverless adoption.

The biggest thanks of all goes to Mario Casciaro for involving me in such an amazing project. It has been a fantastic journey and I have definitely learned and grown a ton while working together. I do hope there will be many other chances to work together!

This book was possible, thanks to the hard work of the team at Packt, especially Saby, Tushar, Tom, Joanne, Kishor, Jonathan, and Bhavesh. Thanks for bearing with us for almost a year, and thanks to everyone else at Packt for supporting 3 editions of this book!

A huge thanks go to our talented reviewers. Without their true-hearted supervision and their invaluable recommendations, this book wouldn't be something I could be proud about: thanks Romina, Kyriakos, Roberto, Peter, Tomas, Liran and Minwoo. I will be forever grateful for your help.

A special thanks to Padraig O'Brien, Domagoj Katavic, Michael Twomey, Eugen Serbanescu, Stefano Abalsamo, and Gianluca Arbezzano for providing a great deal of support along the way, and for letting me borrow their expertise when I needed some extra piece of feedback on the content of this book.

My gratitude goes to my family, who raised me and supported me in every possible way along my journey. Thanks, Mom, for being a constant source of inspiration and strength in my life. Thanks, Dad, for all the lessons, the encouragement, and the pieces of advice. I do miss them in my life. Thanks to Davide and Alessia for being present in all the painful and the joyful events of life.