Book Image

Hands-On Microservices with Kotlin

By : Juan Antonio Medina Iglesias
Book Image

Hands-On Microservices with Kotlin

By: Juan Antonio Medina Iglesias

Overview of this book

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.
Table of Contents (14 chapters)

Summary

Now, we can effectively write RESTful APIs using the Spring Framework. We learned how to create complex objects using JSON and how we can handle them when creating requests and responses in our API. We know how we can use HTTP verbs and statuses to define the ubiquitous language of our API, to provide a clear communication to the API consumers. And finally, we learned how to handle errors and answer back to the users of our RESTful microservice.

Remember our microservices principles when you build your API, Domain-Driven Design is a perfect way to separate your API service following your domain mapping. But these APIs follow the standard approach of most microservices, using traditional blocking operations. In the next chapter, we will learn how to use non-blocking techniques to produce more responses and scalable microservices, and we will learn how the new Spring component...