Open Spring Tool Suite, on Menu, choose File -> New -> Spring Starter Project, then fill each fields:Ĭlick Next and Finish, then our project will be created successfully. First, let’s create a basic Kotlin based Spring Boot app with a few components like the repository, controller, and service.

Practice 1. Create Spring Boot project & add Dependencies Get started with Spring Boot and Kotlin by completing this tutorial: it walks you through the process of creating a simple application with Spring Boot and adding a database to store the information. – Create Spring Boot project & add Dependencies – Dependencies for Spring Boot, PostgreSQL and Kotlin in pom.xml 3. – Configuration for Spring Datasource and Spring JPA properties in application.properties Both of these values will be injected by Spring via the Value annotation, which looks into the application. You can see that it takes region and endpoint as the 2 x arguments for its class constructor. Let’s take a look at our current DynamoClientProperties class. – WebController is a REST Controller which has request mapping methods for RESTful requests such as: save, findall, findbyid, findbylastname. Creating DynamoConfigProperties dataclass. – CustomerRepository is an interface extends CrudRepository, will be autowired in WebController for implementing repository methods and custom finder methods. – Customer class corresponds to entity and table customer. This Kotlin tutorial shows you how to use Spring JPA with PostgreSQL using Spring Boot. It supports us the ways to write interface for repositories and custom finder methods, the implementation will be done automatically by Spring Framework. Spring JPA helps us improve our codes and reduce efforts for development and maintenance.

Spring with kotlin