ThrottleRequests.php

<?php

namespace App\Http\Middleware;

use Symfony\Component\HttpFoundation\Response;
use Illuminate\Routing\Middleware\ThrottleRequests as BaseThrottleRequests;

class ThrottleRequests extends BaseThrottleRequests
{
    /**
     * Add the limit header information to the given response.
     *
     * @param  \Symfony\Component\HttpFoundation\Response  $response
     * @param  int  $maxAttempts
     * @param  int  $remainingAttempts
     * @param  int|null  $retryAfter
     * @return \Illuminate\Http\Response
     */
    protected function addHeaders(Response $response, $maxAttempts, $remainingAttempts, $retryAfter = null)
    {
        $headers = [
            'X-RateLimit-Limit' => $maxAttempts,
            'X-RateLimit-Remaining' => $remainingAttempts,
        ];

        if (! is_null($retryAfter)) {
            $headers['Retry-After'] = $retryAfter;
        }

        $response->headers->add($headers);

        return $response;
    }
}