Book Image

Node.js Design Patterns - Second Edition

By : Joel Purra, Luciano Mammino, Mario Casciaro
Book Image

Node.js Design Patterns - Second Edition

By: Joel Purra, Luciano Mammino, Mario Casciaro

Overview of this book

Node.js is a massively popular software platform that lets you use JavaScript to easily create scalable server-side applications. It allows you to create efficient code, enabling a more sustainable way of writing software made of only one language across the full stack, along with extreme levels of reusability, pragmatism, simplicity, and collaboration. Node.js is revolutionizing the web and the way people and companies create their software. In this book, we will take you on a journey across various ideas and components, and the challenges you would commonly encounter while designing and developing software using the Node.js platform. You will also discover the "Node.js way" of dealing with design and coding decisions. The book kicks off by exploring the basics of Node.js describing it's asynchronous single-threaded architecture and the main design patterns. It then shows you how to master the asynchronous control flow patterns,and the stream component and it culminates into a detailed list of Node.js implementations of the most common design patterns as well as some specific design patterns that are exclusive to the Node.js world.Lastly, it dives into more advanced concepts such as Universal Javascript, and scalability' and it's meant to conclude the journey by giving the reader all the necessary concepts to be able to build an enterprise grade application using Node.js.
Table of Contents (20 chapters)
Node.js Design Patterns - Second Edition
About the Authors
About the Author
About the Reviewers

Chapter 5. Coding with Streams

Streams are one of the most important components and patterns of Node.js. There is a motto in the community that says "stream all the things!" and this alone should be enough to describe the role of streams in Node.js. Dominic Tarr, a top contributor to the Node.js community, defines streams as node's best and most misunderstood idea. There are different reasons that make Node.js streams so attractive; again, it's not just related to technical properties, such as performance or efficiency, but it's more about their elegance and the way they fit perfectly into the Node.js philosophy.

In this chapter, you will learn about the following topics:

  • Why streams are so important in Node.js

  • Using and creating streams

  • Streams as a programming paradigm: leveraging their power in many different contexts and not just for I/O

  • Piping patterns and connecting streams together in different configurations