In this chapter, we learned the different ways of state management in the frontend, and we compared data flows in an MVC application and the one Flux uses. Later on, we learned the core concepts of Vuex and how to use them in an application. We also learned how to create pop up windows with the Bootstrap modal component. 

We also implemented the home page's frontend and backend. Due to the limited scope, we didn't cover unit testing and end-to-end test for the home page in this chapter. You're encouraged to try that yourself. You can use those in Chapter 9, Forms and Validation - Starting with the Register Page, and Chapter 10, Spring Security - Making Our Application Secure, as examples. 

Besides that, we added i18n support to our frontend, and we introduced the way to log SQL queries with P6Spy.

In the next chapter, we will create the board page and implement real-time updates with WebSocket, as well as global search with Elasticsearch.