lanzu_api_2021-12-26/app/Exception/Handler/ValidationExceptionHandler.php

<?php

namespace App\Exception\Handler;

use App\Constants\ErrorCode;
use Hyperf\ExceptionHandler\ExceptionHandler;
use Hyperf\HttpMessage\Stream\SwooleStream;
use Hyperf\Validation\ValidationException;
use Psr\Http\Message\ResponseInterface;
// use Hyperf\Di\Annotation\Inject;
// use Hyperf\HttpServer\Contract\ResponseInterface as Response;
use Throwable;

class ValidationExceptionHandler extends ExceptionHandler
{
    // /**
    //  * @Inject
    //  * @var Response
    //  */
    // private $reponse;

    public function handle(Throwable $throwable, ResponseInterface $response)
    {
        $this->stopPropagation();

        $content = json_encode([
            "status" => 'error',
            "code" => ErrorCode::PARAMS_INVALID,
            "result" => [],
            "message" => $throwable->validator->errors()->first()
        ]);

        return $response->withStatus($throwable->status)->withBody(new SwooleStream($content));
    }

    public function isValid(Throwable $throwable): bool
    {
        return $throwable instanceof ValidationException;
    }
}