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

Migrating a data model from monolithic to microservices


A typical enterprise application can have three parts: frontend with some HTML, CSS, angular stuff; a server part that handles requests and does some business logic; and a database part that has tables for all the contexts we have in our application. If you need to add one new thing to a database or at server side, even if it is in a tiny and isolated part of the application, you have to deploy the whole application. It tends to cause downtime, which is not very acceptable in today's era.

In these kind of scenarios, microservice comes up with a solution. However, migrating monolith to microservices is not easy and includes lots of decisions and considerations. Here, we are mainly talking about migrating from a database model of monolithic architecture to microservices-based architecture. One can go with a big step and convert the whole monolith application into microservices. Another option is go step by step and find a piece of a data...