No it doesn’t, it solves a completely different problem. That video shows you how to make a custom endpoint for a custom content-type, not how to add a controller to a content-type that is included as part of a plugin
No it doesn’t, it solves a completely different problem. That video shows you how to make a custom endpoint for a custom content-type, not how to add a controller to a content-type that is included as part of a plugin