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

Microservice communication


The RecommendationService microservice is a completely new microservice with communication features we already know and others that are equally new. This microservice will consist of an API with HTTP endpoints and a message reader that is going to read messages sent from NewsOrchestrator, which is the microservice responsible for the orchestration of data.

The messages sent are asynchronous and carried through a dispatcher. In this way, the microservice that sends messages does not get blocked threads waiting for a response.

A system of messaging and non-blocking communication is the heart of the asynchronous messaging design pattern. Basically, this pattern has a focus on the communication layer.

Due to the asynchronous character of the microservice that this pattern uses, it is fundamental to use communication tools that are resilient or have an efficient retry mechanism. In our microservice, we are using RabbitMQ because it has a transactional messaging system...