Book Image

Microservice Patterns and Best Practices

By : Vinicius Feitosa Pacheco
Book Image

Microservice Patterns and Best Practices

By: Vinicius Feitosa Pacheco

Overview of this book

Microservices are a hot trend in the development world right now. Many enterprises have adopted this approach to achieve agility and the continuous delivery of applications to gain a competitive advantage. This book will take you through different design patterns at different stages of the microservice application development along with their best practices. Microservice Patterns and Best Practices starts with the learning of microservices key concepts and showing how to make the right choices while designing microservices. You will then move onto internal microservices application patterns, such as caching strategy, asynchronism, CQRS and event sourcing, circuit breaker, and bulkheads. As you progress, you'll learn the design patterns of microservices. The book will guide you on where to use the perfect design pattern at the application development stage and how to break monolithic application into microservices. You will also be taken through the best practices and patterns involved while testing, securing, and deploying your microservice application. At the end of the book, you will easily be able to create interoperable microservices, which are testable and prepared for optimum performance.
Table of Contents (20 chapters)
Title Page
Dedication
Packt Upsell
Contributors
Preface
Index

Chapter 6. Aggregator Microservice Design Pattern

In the previous chapter, we saw the operation and applicability of the shared data pattern design. We know that the pattern mentioned here is temporary; that is, it is a pattern for some transition scenarios from monolithic to microservices because of the risk over some components. In this chapter, we will move on from the shared data design pattern to apply a more consistent pattern with good development practices to microservices.

It will be presented and applied to the aggregator design pattern. Precisely, with the new pattern, we will apply Command Query Responsibility Segregation (CQRS) and event sourcing to our News microservices. Another interesting point is that we will restructure our storage distribution. There is no doubt that this will be a chapter full of new concepts and a lot of practice.

In this chapter, we'll see the following:

  • Database segregation
  • Microservice refactoring
  • Microservice communication
  • Functional tests
  • Integration...