Throughout the chapters of this book, as we developed each application, we added features by extending the existing code in a common and repeatable number of steps. In this final section, we will review those steps, setting a guideline for adding more features to the current versions of the applications.
Extending the applications
Extending the server code
For a specific feature that will require data persistence and APIs to allow the views to manipulate the data, we can start by extending the server code and adding the necessary models, routes, and controller functions, as outlined in the following sections.
