Debug log data about incoming requests and responses

Debug.php

<?php

namespace App\Http\Middleware;

use Closure;
use Throwable;
use GuzzleHttp\Psr7\Uri;
use Illuminate\Http\{JsonResponse, RedirectResponse, Request, Response};

/**
 * Class Debug
 * @package App\Http\Middleware
 */
class Debug
{
    /**
     * @param Request $request
     * @param Closure $next
     * @return Response|RedirectResponse|JsonResponse
     * @throws Throwable
     */
    public function handle(Request $request, Closure $next)
    {
        $response = $error = null;

        $flattenHeaders = function ($value) {
            return (is_array($value) && count($value) == 1) ? current($value) : $value;
        };

        if (config('app.log_requests')) {
            $log = [
                'request' => [
                    'method' => $request->method(),
                    'url' => $request->url(),
                    'cookies' => $request->cookies->all(),
                    'headers' => array_map($flattenHeaders, $request->headers->all()),
                    'content' => $request->all()
                ]
            ];

            if ($route = $request->route()) {
                $log['route'] = [
                    'path' => urldecode(app(Uri::class, ['uri' => $route->uri()])->getPath()),
                    'name' => $route->getName(),
                    'definition' => $route->getActionName()
                ];
            }

            logger(print_r($log, true));
        }

        try {
            /** @var Response|RedirectResponse|JsonResponse $response */
            $response = $next($request);
        } catch (Throwable $exception) {
            $error = $exception;
        }

        if (config('app.log_requests')) {
            $log = [];

            if ($response) {
                $log['response'] = [
                    'code' => $response->getStatusCode(),
                    'headers' => array_map($flattenHeaders, $response->headers->all()),
                    'content' => $response->content()
                ];
            }

            if ($error) {
                $log['error'] = ($self = function (Throwable $exception) use (&$self) {
                    $error = [
                        'type' => get_class($exception),
                        'code' => $exception->getCode(),
                        'message' => $exception->getMessage(),
                        'trace' => $exception->getTrace()
                    ];

                    if ($previous = $exception->getPrevious()) {
                        $error['previous'] = $self($previous);
                    }

                    return $error;
                })($error);
            }

            logger(print_r($log, true));
        }

        if ($error) {
            throw $error;
        }

        return $response;
    }
}