Book Image

Reactive Programming in Kotlin

By : Rivu Chakraborty
Book Image

Reactive Programming in Kotlin

By: Rivu Chakraborty

Overview of this book

In today's app-driven era, when programs are asynchronous, and responsiveness is so vital, reactive programming can help you write code that's more reliable, easier to scale, and better-performing. Reactive programming is revolutionary. With this practical book, Kotlin developers will first learn how to view problems in the reactive way, and then build programs that leverage the best features of this exciting new programming paradigm. You will begin with the general concepts of Reactive programming and then gradually move on to working with asynchronous data streams. You will dive into advanced techniques such as manipulating time in data-flow, customizing operators and provider and how to use the concurrency model to control asynchronicity of code and process event handlers effectively. You will then be introduced to functional reactive programming and will learn to apply FRP in practical use cases in Kotlin. This book will also take you one step forward by introducing you to Spring 5 and Spring Boot 2 using Kotlin. By the end of the book, you will be able to build real-world applications with reactive user interfaces as well as you'll learn to implement reactive programming paradigms in Android.
Table of Contents (20 chapters)
Title Page
About the Author
About the Reviewers
Customer Feedback

REST API with Spring Boot, Hibernate, and JPA

In the previous chapter, we saw how to create a static RESTful API. We will now learn how to manipulate database records as response to an API request. I've used MySQL as a database in this project.

We will use JPA in this project. You can start a new project and add JPA as one of the dependencies. Alternatively, you can add this to your Gradle dependencies list:



Note: You don't need to put version and artifacts here, it is automatically managed by a Spring Gradle plugin and Spring Boot.

Now, as you added the dependency, you have to add Go to resources and add a file named with the following content:

    ## Spring DATASOURCE (DataSourceAutoConfiguration &    
    spring.datasource.url = jdbc:mysql://localhost:3306/tododb 
    spring.datasource.username = root 
    spring.datasource.password = password...