We began this chapter by exploring the importance and architecture of WordPress plugins. In the previous chapters, we developed one main plugin to cater to application-specific requirements. Here, we identified the importance of creating reusable plugins by categorizing such plugins into three types called reusable libraries, extensible plugins, and pluggable plugins.
While building these plugins, we learned the use of actions, filters, and pluggable functions within WordPress. The integration of a media uploader was very important for web applications, which works with file-related functionalities.
In the next chapter, Chapter 6, Customizing the Dashboard for Powerful Backends, we will master the use of the WordPress admin section to build highly customizable backends using existing features. Stay tuned as this will be important for developers who are planning to use WordPress as a backend system without using its theme.