Book Image

Microservices with Azure

By : Rahul Rai, Namit Tanasseri
Book Image

Microservices with Azure

By: Rahul Rai, Namit Tanasseri

Overview of this book

Microsoft Azure is rapidly evolving and is widely used as a platform on which you can build Microservices that can be deployed on-premise and on-cloud heterogeneous environments through Microsoft Azure Service Fabric. This book will help you understand the concepts of Microservice application architecture and build highly maintainable and scalable enterprise-grade applications using the various services in Microsoft Azure Service Fabric. We will begin by understanding the intricacies of the Microservices architecture and its advantages over the monolithic architecture and Service Oriented Architecture (SOA) principles. We will present various scenarios where Microservices should be used and walk you through the architectures of Microservice-based applications. Next, you will take an in-depth look at Microsoft Azure Service Fabric, which is the best–in-class platform for building Microservices. You will explore how to develop and deploy sample applications on Microsoft Azure Service Fabric to gain a thorough understanding of it. Building Microservice-based application is complicated. Therefore, we will take you through several design patterns that solve the various challenges associated with realizing the Microservices architecture in enterprise applications. Each pattern will be clearly illustrated with examples that you can keep referring to when designing applications. Finally, you will be introduced to advanced topics such as Serverless computing and DevOps using Service Fabric, to help you undertake your next venture with confidence.
Table of Contents (23 chapters)
Title Page
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Customer Feedback
Preface
Part 1 – Laying The Foundation
Part 2 – Microsoft Azure Service Fabric
Part 3 – Microservice Architecture Patterns
Part 4 – Supplementary Learning

Event Sourcing


Problem

Traditional applications typically maintain the state of data by continuously updating the data as the user interacts with the application and keeps modifying the data. Continuous updates often involve transactions that lock the data under operation. Some of the problems with traditional applications are:

  • Performing CRUD (Create, Read, Update, and Delete) operations directly against a data store impacts performance and responsiveness due to high processing overhead involved.
  • In a collaborative domain, parallel updates on a single item of data may lead to conflicts.
  • Traditional applications, in general, do not preserve history of operations performed on data and therefore there are no audit logs available unless maintained separately.

Solution

Event Sourcing models every change in the state of an application as an event object. The events are recorded in an append-only store. Application generates a series of events that capture the change that it has applied on data and...