Laravel - Routing - Customizing The Key

Sometimes you may wish to resolve Eloquent models using a column other than id. To do so, you may specify the column in the route parameter definition:

use App\Models\Post;

Route::get('/posts/{post:slug}', function (Post $post) {
    return $post;
});

If you would like model binding to always use a database column other than id when retrieving a given model class, you may override the getRouteKeyName method on the Eloquent model:

/**
 * Get the route key for the model.
 *
 * @return string
 */
public function getRouteKeyName()
{
    return 'slug';
}