hyperf-chat/app/Exception/Handler/WebSocketExceptionHandler.php

<?php
declare(strict_types=1);

namespace App\Exception\Handler;

use Hyperf\Contract\StdoutLoggerInterface;
use Hyperf\ExceptionHandler\ExceptionHandler;
use Hyperf\ExceptionHandler\Formatter\FormatterInterface;
use Hyperf\HttpMessage\Stream\SwooleStream;
use Psr\Http\Message\ResponseInterface;
use Throwable;

class WebSocketExceptionHandler extends ExceptionHandler
{
    /**
     * @var StdoutLoggerInterface
     */
    protected $logger;

    /**
     * @var FormatterInterface
     */
    protected $formatter;

    public function __construct(StdoutLoggerInterface $logger, FormatterInterface $formatter)
    {
        $this->logger    = $logger;
        $this->formatter = $formatter;
    }

    public function handle(Throwable $throwable, ResponseInterface $response)
    {
        $stream = new SwooleStream($throwable->getMessage());
        return $response->withBody($stream);
    }

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