Summary

In this chapter, we examined the packaging structure of our application and analyzed the services and dependencies in our banking-legacy-rest and banking-domain projects. We realized that UserService was not following the single responsibility principle and had two distinct responsibilities: user profiles and authentication. Based on this, we refactored the authentication responsibilities of UserService in AuthService, placing AuthService into its own project, along with TokenAuthenticationFilter. As both UserService and AuthService depend on User and UserRepository, we also placed User and UserRepository into their own project called user-core-domain. This allowed us to separate our concerns into two microservices, user-rest and account-rest. We then learned how to use two separate databases in our microservices to enable us to have a separate database for each microservice, as well as a shared database for authentication. Finally, we learned how to define container images...