Book Image

Node.js Design Patterns - Third Edition

By : Mario Casciaro, Luciano Mammino
5 (1)
Book Image

Node.js Design Patterns - Third Edition

5 (1)
By: Mario Casciaro, Luciano Mammino

Overview of this book

In this book, we will show you how to implement a series of best practices and design patterns to help you create efficient and robust Node.js applications with ease. We kick off by exploring the basics of Node.js, analyzing its asynchronous event driven architecture and its fundamental design patterns. We then show you how to build asynchronous control flow patterns with callbacks, promises and async/await. Next, we dive into Node.js streams, unveiling their power and showing you how to use them at their full capacity. Following streams is an analysis of different creational, structural, and behavioral design patterns that take full advantage of JavaScript and Node.js. Lastly, the book dives into more advanced concepts such as Universal JavaScript, scalability and messaging patterns to help you build enterprise-grade distributed applications. Throughout the book, you’ll see Node.js in action with the help of several real-life examples leveraging technologies such as LevelDB, Redis, RabbitMQ, ZeroMQ, and many others. They will be used to demonstrate a pattern or technique, but they will also give you a great introduction to the Node.js ecosystem and its set of solutions.
Table of Contents (16 chapters)
Other Books You May Enjoy


  • 11.1 Proxy with pre-initialization queues: Using a JavaScript Proxy, create a wrapper for adding pre-initialization queues to any object. You should allow the consumer of the wrapper to decide which methods to augment and the name of the property/event that indicates if the component is initialized.
  • 11.2 Batching and caching with callbacks: Implement batching and caching for the totalSales API examples using only callbacks, streams, and events (without using promises or async/await). Hint: Pay attention to Zalgo when returning cached values!
  • 11.3 Deep async cancelable: Extend the createAsyncCancelable() function so that it's possible to invoke other cancelable functions from within the main cancelable function. Canceling the main operation should also cancel all nested operations. Hint: Allow to yield the result of an asyncCancelable() from within the generator function.
  • 11.4 Compute farm: Create an HTTP server with a POST endpoint that receives...