Drupal 8 uses events to allow modules and various subsystems to communicate with one another in an object-oriented manner. Understanding how the Event API works are critical knowledge for all module developers.
- Understand Drupal Events versus Hooks
- Create an Event Subscriber with tags
- Dispatching an Event
- Discovering Existing Events
Explain what events are, and their use case. Provide direction for people who want to learn more about working with events in their code.