Google ReCAPTCHA Laravel Rule

ReCaptcha.php

<?php

namespace App\Rules;

use GuzzleHttp\Client;
use Illuminate\Contracts\Validation\Rule;

class ReCaptcha implements Rule
{
    /**
     * The recaptcha validation URL.
     *
     * @var string
     */
    protected $url = 'https://www.google.com/recaptcha/api/siteverify';

    /**
     * Determine if the validation rule passes.
     *
     * @param  string $attribute
     * @param  mixed  $value
     * @return bool
     */
    public function passes($attribute, $value)
    {
        $client = new Client();

        $response = $client->post($this->url,
            ['form_params'=>
                [
                    'secret' => env('GOOGLE_RECAPTCHA_SECRET_KEY'),
                    'response' => $value
                ]
            ]
        );

        $body = json_decode((string) $response->getBody());

        return $body->success;
    }

    /**
     * Get the validation error message.
     *
     * @return string
     */
    public function message()
    {
        return __('You must validate that you are human.');
    }
}

view.blade.php

<script src='https://www.google.com/recaptcha/api.js?hl={{ app()->getLocale() }}'></script>

<div class="g-recaptcha d-inline-block" data-sitekey="{{ config('google.recpatcha_site_key') }}"></div>

@if($errors->has('g-recaptcha-response'))
    <div class="invalid-feedback">
        {{ $errors->first('g-recaptcha-response') }}
    </div>
@endif