applicant-site/app/Http/Requests/admin/StoreUserRequest.php

<?php

namespace App\Http\Requests\admin;

use Illuminate\Foundation\Http\FormRequest;

class StoreUserRequest extends FormRequest
{
    public function authorize()
    {
        return true;
    }

    public function rules()
    {
        return [
            'name' => 'required|unique:users,name|max:255',
            'email' => 'email|string|max:255',
            'password' => 'required'
        ];
    }
}