API Platform makes setting up an API a breeze. Create an entity, expose it as a resource and you are pretty much done, but what if you need to customize something? API-Platform relies heavily on Symfony's event cycle to provide most of its features and knowing which event is responsible for what and how to hook into it, is crucial when you want to customize parts of API-platform.

In this talk, we will go through Symfony's kernel events and then look at how api-platform uses them. I will discuss the most relevant event listeners provided by api-platform and we will look what they do. This will not only help you when you need to debug issues in api-platform, it also helps you make better use of the extension points provided by api-platform or when and how to add your own.