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

Chapter 8. Evolving the Existing System

Up until now, we have heard a lot about microservices. In plain English, we can say that it's a way to break a large system into smaller subsystems in order to try and make the system as a whole work more efficiently. It should be easier to build and maintain. As much as it sounds good, at the same time, it is a challenge to break up any platform into a microservice pattern. It doesn't matter whether you are building it from scratch or migrating from a monolithic to a microservice architecture, it takes a lot of time, effort, expertise, and research to do so.

Say you have had a successful monolithic application, running for the last few years: Why would you want to change it? You are using it for a business, and a business needs consumers. If you see an increase in the number of internet users, then it makes sense for you to try to increase sales by increasing your digital presence and attracting more and more traffic. With good digital marketing, the...