In this chapter, we wrapped up our journey through Kotlin by finishing up the Place Reviewer application. In the process, we explored—in depth—the creation of view layers for Spring MVC-based applications. Furthermore, we learned how to integrate an application with Google Places API Web Services with the goal of making an application location-aware.

In addition, we learned about form input validation with the help of Validator classes and BindingResult. Finally, we covered how to configure for testing and write tests for Spring-based applications.