sfp_api_laravel_ginastica_cerebro/app/Http/Requests/ProductRequest.php

<?php

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;

class ProductRequest extends FormRequest
{
    public function rules(): array
    {
        $rules = [
            'name'        => 'sometimes|string|max:255',
            'description' => 'sometimes|nullable|string|max:2000',
            'price_sale'  => 'sometimes|numeric|min:0',
        ];

        if ($this->isMethod('POST')) {
            $rules['name']       = 'required|string|max:255';
            $rules['price_sale'] = 'required|numeric|min:0';
        }

        return $rules;
    }

    /**
    * Add custom messages when needed
    * public function messages(): array
    * {
    *   return [
    *        'field.required' => __('message.algo'),
    *    ];
    * }
    */
}