Before working on evaluating and enhancing the performance of your application, you need to indeed have an application. In this part, we will create a small application that we will use to illustrate every part of the book. This chapter doesn't intend to explain all the steps required to create a Java EE application. It will give you the overall steps and ensure that the references to the steps will be obvious later.
The use case of this application will be a microservice that provides a set of web services to manage stocks and shares. This chapter will, therefore, introduce you to the application environment:
- Application code structure
- Database setup
- Data persistence
- Exposing data over HTTP
- Deploying your application
