Book Image

Building Applications with Spring 5 and Kotlin

By : Miloš Vasić
Book Image

Building Applications with Spring 5 and Kotlin

By: Miloš Vasić

Overview of this book

Kotlin is being used widely by developers because of its light weight, built-in null safety, and functional and reactive programming aspects. Kotlin shares the same pragmatic, innovative and opinionated mindset as Spring, so they work well together. Spring when combined with Kotlin helps you to reach a new level of productivity. This combination has helped developers to create Functional Applications using both the tools together. This book will teach you how to take advantage of these developments and build robust, scalable and reactive applications with ease. In this book, you will begin with an introduction to Spring and its setup with Kotlin. You will then dive into assessing the design considerations of your application. Then you will learn to use Spring (with Spring Boot) along with Kotlin to build a robust backend in a microservice architecture with a REST based collaboration, and leverage Project Reactor in your application. You’ll then learn how to integrate Spring Data and Spring Cloud to manage configurations for database interaction and cloud deployment. You’ll also learn to use Spring Security to beef up security of your application before testing it with the JUnit framework and then deploying it on a cloud platform like AWS.
Table of Contents (12 chapters)

Understanding microservice architectures

Let's put more focus on microservice architecture. It's the most commonly used architecture in modern enterprise application development. Since it is scalable, it is considered one of the best approaches for the development of this kind.

The first key point in understanding microservices is that the whole system must be broken into multiple independent applications. What are the benefits of this? Each application (service) can be easily and independently deployed, maintained, and redeployed as needed.

Each microservice has a single responsibility, which is its primary context. For example, development teams can be focused independently on the development of certain contexts and sets of features. Microservices receive requests, process them, and send responses to the pipes though which information flows.

One of the important points...