ldc-legaulois/app/Http/Requests/Club/Messages/BlockCustomerRequest.php

<?php

namespace App\Http\Requests\Club\Messages;

use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Support\Facades\Auth;

class BlockCustomerRequest extends FormRequest
{
    /**
     * Determine if the user is authorized to make this request.
     */
    public function authorize(): bool
    {
        return Auth::guard('club')->check();
    }

    /**
     * Get the validation rules that apply to the request.
     */
    public function rules(): array
    {
        return [
            'username' => 'required|exists:customers,username',
        ];
    }
}