In this chapter, you were introduced to Spring with Kotlin. We learned about dependency injection and Aspect-oriented programming. We learned how a simple POJO class can show great power with the help of the Spring Framework. In this chapter, we also learned to create a simple API with Spring.
In the next chapter, we will focus on enhancing our API to a fully functional one with the help of JPA and Hibernate to work with MySQL database. We will also learn to implement reactive programming with Spring.
So, don't wait! Head over to the next chapter right now. Our API is still incomplete.