Throughout this chapter, we have learned how to collect useful metrics regarding indicators both from a technical and business perspective. We have also learned how to use APMs to monitor our environment and get the information that we need in order to understand the health, status, and statistics of most-used transactions, including the response time of our applications. All this information will help us to maintain our applications in production, and to respond quickly to any possible performance issues.

In the next chapter, we are going to review security practices and how to write them using Spring.