Laravel ObservedBy Attribute

What is ObservedBy?

The #[ObservedBy] attribute (Laravel 11+) lets you attach observers directly to your model instead of registering them.

Before vs After
Old Way (Laravel 10 and below):

// Model
class User extends Model {
    //
}

// AppServiceProvider.php
public function boot(): void
{
    User::observe(UserObserver::class);
}

New Way (Laravel 11+):

use Illuminate\Database\Eloquent\Attributes\ObservedBy;

#[ObservedBy([UserObserver::class])]
class User extends Model {
    //
}

Benefits

Self-documenting - See observers directly on the model
No service provider clutter - Everything in one place
Multiple observers - Easy to add/remove
Type-safe - IDE autocomplete support

For comprehensive use cases and alternative implementation methods, refer to the official documentation.