In this chapter, we rapidly crafted a Spring Web application using the Spring stack on top of Netty with little configuration from our end. We plugged in Spring Boot's Actuator module, configuring it with metrics, health, and management features so that we can monitor it in production by merely adding two lines of extra code.

In the next chapter, we'll get underway building our social media platform using these scalable APIs built on top of Reactive Streams.