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

Message broker – Async communication between services


In the previous topic, we talked about synchronous communication between microservices using binary and alternatives to REST. This topic will deal with the communication between microservices using message broker, that is, a messaging system with a physical element, a communication layer, and a message bus.

With messaging systems, it is impossible to reproduce the Death Star. The design of the Death Star in a more robust application would be something like the following:

The diagram of a messaging system is totally different, similar to the one shown in the following:

The message bus can be used for both synchronous and asynchronous communication, but certainly, the major point of emphasis of the message bus is in asynchronous communication.

You may wonder, if the messaging diagram is simpler and you can use this type of tool for synchronous communication, why not use this messaging for all types of communication between microservices?

The...