Book Image

Practical Microservices

By : Umesh Ram Sharma
Book Image

Practical Microservices

By: Umesh Ram Sharma

Overview of this book

<p>A microservice architecture helps you build your application as a suite of different services. This approach has been widely adopted as it helps to easily scale up your application with reduced dependencies. This way if a part of your application is corrupted, it can be fixed easily thereby eliminating the possibility of completely shutting down your software. This book will teach you how to leverage Java to build scalable microservices. You will learn the fundamentals of this architecture and how to efficiently implement it practically.</p> <p>We start off with a brief introduction to the microservice architecture and how it fares with the other architectures. The book dives deep into essential microservice components and how to set up seamless communication between two microservice end points. You will create an effective data model and learn different ways to test and deploy a microservices. You will also learn the best way to migrate your software from a monolith to a microservice architecture.</p> <p>Finishing off with monitoring, scaling and troubleshooting, this book will set a solid foundation for you to start implementing microservices.</p>
Table of Contents (17 chapters)
Title Page
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Synchronous versus asynchronous communication


In the previous section, we saw how communication between microservices can be triggered. It can be one service controlling another service (orchestration), or a microservice raising its voice when it needs to talk to another microservice (choreography). One can choose any pattern there, but irrespective of what they have chosen, the other question is whether the trigger of communication should be synchronous or asynchronous. There are two other ways to look at how communication is done first: does your microservice want to collect data from other microservices by giving them conditions and waiting for a result? Secondly, they may want to broadcast a message, to tell every other microservice that it has done its part, to please take over from here, and start doing its own next task. In the upcoming section we will explore both of these methods.

Synchronous communication

As the name says, in synchronous communication, communication happens between...