In this chapter, we implemented and tested the BrownField PSS microservice with basic Spring Boot capabilities. We learned how to approach a real use case with a microservices architecture.

We examined the various stages of a real-world evolution towards microservices from a monolithic application. We also evaluated the pros and cons of multiple approaches, and the obstacles encountered when migrating a monolithic application. Finally, we explained the end-to-end microservices design for the use case that we examined. Design and implementation of a fully-fledged microservice implementation was also validated.

In the next chapter, we will see how the Spring Cloud project helps us to transform the developed BrownField PSS microservices to an Internet-scale deployment.