With Google's inclusion of first-class support for Kotlin in their Android ecosystem, Kotlin's future as a mainstream language is assured. Microservices help design scalable, easy-to-maintain web applications; Kotlin allows us to take advantage of modern idioms to simplify our development and create high-quality services. With 100% interoperability with the JVM, Kotlin makes working with existing Java code easier. Well-known Java systems such as Spring, Jackson, and Reactor have included Kotlin modules to exploit its language features.

This book guides the reader in designing and implementing services, and producing production-ready, testable, lean code that's shorter and simpler than a traditional Java implementation. Reap the benefits of using the reactive paradigm and take advantage of non-blocking techniques to take your services to the next level in terms of industry standards. You will consume NoSQL databases reactively to allow you to create high-throughput microservices. Create cloud-native microservices that can run on a wide range of cloud providers, and monitor them. You will create Docker containers for your microservices and scale them. Finally, you will deploy your microservices in OpenShift Online.

What you will learn

Understand microservice architectures and principles

Build microservices in Kotlin using Spring Boot 2.0 and Spring Framework 5.0

Create reactive microservices that perform non-blocking operations with Spring WebFlux

Use Spring Data to get data reactively from MongoDB

Test effectively with JUnit and Kotlin

Create cloud-native microservices with Spring Cloud

Build and publish Docker images of your microservices

Scaling microservices with Docker Swarm

Monitor microservices with JMX

Deploy microservices in OpenShift Online

Table of Contents

Understanding Microservices

Getting Started with Spring Boot 2.0

Creating RESTful services

Creating Reactive Microservices

Reactive Spring Data

Creating Cloud Native Microservices

Creating Dockers

Scaling Microservices

Testing Spring Microservices

Monitoring Microservices

Deploying Microservices

Best Practices

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