Defining a custom plugin

A plugin is a plain object that defines hooks to modify the way Vite resolves ids, loads and transforms modules, and more. It can have various properties that are listed in the Plugin API | Vite documentation. The only required property is name.

Let's start by adding a custom plugin in our Vite config file. To do this, add a new plugins array property in the exported config object.

Then, let's add a new object with name 'yaml-plugin' inside the plugins array.