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)

Building Your First Spring RESTful Service with Kotlin

In the previous chapter, we just started our Spring application. As you can see, it runs and it stops. This is because we did not implement anything in our application to work with. You will also have noticed that when you start the application, one of the noticeable logs says :: Spring Boot ::. That is because we use Spring Boot to run the application. Spring Boot is a framework that we will use to simplify the bootstrapping and development of an application. It frees developers from the need to define a boilerplate configuration.

As we have already said, when we run our Spring application, Spring Boot starts and terminates since there is nothing to do. In this chapter, we will define some things. We will create our first implementation!

Here, you will learn about the following topics:

  • Defining dependencies for our project...