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Hands-On Microservices with JavaScript

Hands-On Microservices with JavaScript

By : Tural Suleymani
4.7 (7)
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Hands-On Microservices with JavaScript

Hands-On Microservices with JavaScript

4.7 (7)
By: Tural Suleymani

Overview of this book

Keep up with the ever-evolving web development landscape by mastering JavaScript microservices with expert guidance from Tural Suleymani—a full-stack software engineer, architect, software development teacher, Microsoft MVP, and three-time C# Corner MVP. He distills over a decade of experience crafting high-performance, scalable solutions into this guide. He’ll walk you through the fundamentals of microservices, providing a solid foundation in architecture, design principles, and the necessary tools and technologies. From beginners to seasoned developers, this book offers a clear pathway to mastering microservices with JavaScript. With the help of hands-on tasks that simulate real-world scenarios, you’ll learn how to build reliable and scalable microservices. You’ll explore synchronous and asynchronous communication, real-time data streaming, and how to secure and monitor your services. The book’s emphasis on a design-first approach ensures that your microservices are maintainable and future-proof. Detailed case studies from industry experts will enhance your learning experience and provide practical insights into building microservices in production environments. By the end of this book, you'll be ready to create cloud-ready, high-performing microservices using cutting-edge JavaScript frameworks and tools and tackle real-world challenges, ensuring your applications are secure and efficient.
Table of Contents (19 chapters)
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1
Part 1:Fundamentals of Microservices Architecture
6
Part 2:Building and Managing Microservices
11
Part 3:Securing, Testing, and Deploying Microservices

Summary

This chapter was about JavaScript and Node.js internals.

First, we started our discussion with JavaScript internals. The main point was to understand the JavaScript engine and the JavaScript runtime. JavaScript is a single-thread language, but it has an async nature and we’re able to use callbacks and promises to implement it. In async programming, callbacks are a bit old school nowadays thanks to promises. We also talked about the Promise API and learned a lot of interesting functions.

The popularity of promises brings other interesting features to JavaScript: async/await. Using examples, we tried to demonstrate how they make our code more readable, understandable, and similar to sync code.

For promises, we have a special queue in the JavaScript engine pipeline called the microtask queue.

Then we started a discussion around Node.js and learned that it is also a runtime and uses the JavaScript engine to read and translate JavaScript code. It takesJavaScript...

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