How to use Factory callbacks in Laravel

Example How to use Factory callbacks in Laravel:

in laravel you can provide Factory Callback functions to perform some action after record is inserted.

Example:

$factory->afterCreating(App\User::class, function ($user, $faker) {
 $user->accounts()->save(factory(App\Account::class)->make());
});

Factory callbacks are registered using the afterMaking and afterCreating methods and allow you to perform additional tasks after making or creating a model. You should register these callbacks by defining a configure method on the factory class. This method will automatically be called by Laravel when the factory is instantiated:

namespace Database\Factories;

use App\Models\User;
use Illuminate\Database\Eloquent\Factories\Factory;
use Illuminate\Support\Str;

class UserFactory extends Factory
{
    /**
     * The name of the factory's corresponding model.
     *
     * @var string
     */
    protected $model = User::class;

    /**
     * Configure the model factory.
     *
     * @return $this
     */
    public function configure()
    {
        return $this->afterMaking(function (User $user) {
            //
        })->afterCreating(function (User $user) {
            //
        });
    }

    // ...
}