In this chapter, we explained how you can debug and do a profiling of a microservice application, an important process in any software development. On a day-to-day basis, you will not spend all your time debugging or profiling your application; in some scenarios, you will spend a lot of time trying to fix bugs. For this reason, it is important to have a place where you can store all your errors and debug information, this information will give you a deeper understanding of what is happening with your app. Finally, as a full-stack developer, we showed you how to monitor the top two layers of your application stack.