JsonResponseHandler.php

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<?php
namespace Whoops\Handler;

use Whoops\Exception\Formatter;

class JsonResponseHandler extends Handler
{
    private $returnFrames = false;

    private $jsonApi = false;

    public function setJsonApi($jsonApi = false)
    {
        $this->jsonApi = (bool) $jsonApi;
        return $this;
    }

    public function addTraceToOutput($returnFrames = null)
    {
        if (func_num_args() == 0) {
            return $this->returnFrames;
        }

        $this->returnFrames = (bool) $returnFrames;
        return $this;
    }

    public function handle()
    {
        if ($this->jsonApi === true) {
            $response = [
                'errors' => [
                    Formatter::formatExceptionAsDataArray(
                        $this->getInspector(),
                        $this->addTraceToOutput()
                    ),
                ]
            ];
        } else {
            $response = [
                'error' => Formatter::formatExceptionAsDataArray(
                    $this->getInspector(),
                    $this->addTraceToOutput()
                ),
            ];
        }

        echo json_encode($response, defined('JSON_PARTIAL_OUTPUT_ON_ERROR') ? JSON_PARTIAL_OUTPUT_ON_ERROR : 0);

        return Handler::QUIT;
    }

    public function contentType()
    {
        return 'application/json';
    }
}