How to use Google ReCaptcha V3 in Laravel 9?

Hello,

This article is focused on laravel 9 google recaptcha v3 example. you can see how to use google recaptcha v3 in laravel 9. it's simple example of how to add google recaptcha v3 in laravel 9. This tutorial will give you simple example of integrate google recaptcha v3 in laravel 9. You just need to some step to done add google captcha in laravel 9.

As we know, When we created a contact us form or feedback form or any form that is accessed publicly Then we have so many submissions from spam. They submit those forms using curl request or something. So we can not get the real users from those forms. Here, i we will use google recaptcha v3 to prevent spam submission. we will create a contact us form and use google recaptcha v3 and prevent them. So that way you have only real users and real feedback you will get.

Let's see the below steps and make it done.

Step 1: Install Laravel

This step is not required; however, if you have not created the laravel app, then you may go ahead and execute the below command:

composer create-project laravel/laravel example-app

Step 2: Add Google API Key

In this step we need to set google site key and secret key. If you don't have site key and secret key then you can create from here. First click on this link : Recaptcha Admin

Ok, after sucessfully register you can get site key and secret key from like bellow preview.

Now open .env file and add this two variable

.env

GOOGLE_RECAPTCHA_KEY=6Lc9hfMfAAAAAMNLm5_2P4jbzVSNWxaF0vgk
GOOGLE_RECAPTCHA_SECRET=6Lc9hfMfAAAAAAdBOKGoz88JVgc5LwMO9

Step 3: Create Routes

In this step, we will create two routes GET and POST. so let's add it.

routes/web.php

<?php
  
use Illuminate\Support\Facades\Route;
  
use App\Http\Controllers\ContactController;
   
/*
|--------------------------------------------------------------------------
| Web Routes
|--------------------------------------------------------------------------
|
| Here is where you can register web routes for your application. These
| routes are loaded by the RouteServiceProvider within a group which
| contains the "web" middleware group. Now create something great!
|
*/
    
Route::get('contact-us', [ContactController::class, 'index']);
Route::post('contact-us', [ContactController::class, 'store'])->name('contact.us.store');

Step 4: Create Validation Rule

In this step, we will create new "ReCaptcha" validation rule that will check user is real or not using google recaptcha v3 API. so let's run below command and update rule validation file.

php artisan make:rule ReCaptcha

app/Rules/ReCaptcha.php

<?php
  
namespace App\Rules;
  
use Illuminate\Contracts\Validation\Rule;
use Illuminate\Support\Facades\Http;
  
class ReCaptcha implements Rule
{
    /**
     * Create a new rule instance.
     *
     * @return void
     */
    public function __construct()
    {
          
    }
    /**
     * Determine if the validation rule passes.
     *
     * @param  string  $attribute
     * @param  mixed  $value
     * @return bool
     */
    public function passes($attribute, $value)
    {
        $response = Http::get("https://www.google.com/recaptcha/api/siteverify",[
            'secret' => env('GOOGLE_RECAPTCHA_SECRET'),
            'response' => $value
        ]);
          
        return $response->json()["success"];
    }
    /**
     * Get the validation error message.
     *
     * @return string
     */
    public function message()
    {
        return 'The google recaptcha is required.';
    }
}

Step 5: Create Controller

In this step, we have to create new controller as ContactController and we have also need to add two methods index() and store() on that controller. We will use recaptcha validation on store method. so let's update follow code:

app/Http/Controllers/ContactController.php

<?php
  
namespace App\Http\Controllers;
  
use Illuminate\Http\Request;
use App\Rules\ReCaptcha;
  
class ContactController extends Controller
{
    /**
     * Write code on Method
     *
     * @return response()
     */
    public function index()
    {
        return view('contactForm');
    }
  
    /**
     * Write code on Method
     *
     * @return response()
     */
    public function store(Request $request)
    {
        $request->validate([
            'name' => 'required',
            'email' => 'required|email',
            'phone' => 'required|digits:10|numeric',
            'subject' => 'required',
            'message' => 'required',
            'g-recaptcha-response' => ['required', new ReCaptcha]
        ]);
  
        $input = $request->all();
  
        /*------------------------------------------
        --------------------------------------------
        Write Code for Store into Database
        --------------------------------------------
        --------------------------------------------*/
        dd($input);
  
        return redirect()->back()->with(['success' => 'Contact Form Submit Successfully']);
    }
}

Step 6: Create View File

In Last step, let's create contactForm.blade.php(resources/views/contactForm.blade.php) for create form with google recaptcha v3 and put following code:

resources/views/contactForm.blade.php

<!DOCTYPE html>
<html>
<head>
    <title>Laravel Google ReCaptcha V3 Example - ItSolutionStuff.com</title>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.5.2/css/bootstrap.min.css" />
    <script src="https://code.jquery.com/jquery-3.4.1.min.js"></script>
    <script src="https://www.google.com/recaptcha/api.js?render={{ env('GOOGLE_RECAPTCHA_KEY') }}"></script>
</head>
<body>
    <div class="container">
        <div class="row mt-5 mb-5">
            <div class="col-10 offset-1 mt-5">
                <div class="card">
                    <div class="card-header bg-primary">
                        <h3 class="text-white">Laravel 9 Google ReCaptcha V3 Example - ItSolutionStuff.com</h3>
                    </div>
                    <div class="card-body">
                     
                        <form method="POST" action="{{ route('contact.us.store') }}" id="contactUSForm">
                            {{ csrf_field() }}
                              
                            <div class="row">
                                <div class="col-md-6">
                                    <div class="form-group">
                                        <strong>Name:</strong>
                                        <input type="text" name="name" class="form-control" placeholder="Name" value="{{ old('name') }}">
                                        @if ($errors->has('name'))
                                            <span class="text-danger">{{ $errors->first('name') }}</span>
                                        @endif
                                    </div>
                                </div>
                                <div class="col-md-6">
                                    <div class="form-group">
                                        <strong>Email:</strong>
                                        <input type="text" name="email" class="form-control" placeholder="Email" value="{{ old('email') }}">
                                        @if ($errors->has('email'))
                                            <span class="text-danger">{{ $errors->first('email') }}</span>
                                        @endif
                                    </div>
                                </div>
                            </div>
                            <div class="row">
                                <div class="col-md-6">
                                    <div class="form-group">
                                        <strong>Phone:</strong>
                                        <input type="text" name="phone" class="form-control" placeholder="Phone" value="{{ old('phone') }}">
                                        @if ($errors->has('phone'))
                                            <span class="text-danger">{{ $errors->first('phone') }}</span>
                                        @endif
                                    </div>
                                </div>
                                <div class="col-md-6">
                                    <div class="form-group">
                                        <strong>Subject:</strong>
                                        <input type="text" name="subject" class="form-control" placeholder="Subject" value="{{ old('subject') }}">
                                        @if ($errors->has('subject'))
                                            <span class="text-danger">{{ $errors->first('subject') }}</span>
                                        @endif
                                    </div>
                                </div>
                            </div>
                            <div class="row">
                                <div class="col-md-12">
                                    <div class="form-group">
                                        <strong>Message:</strong>
                                        <textarea name="message" rows="3" class="form-control">{{ old('message') }}</textarea>
                                        @if ($errors->has('message'))
                                            <span class="text-danger">{{ $errors->first('message') }}</span>
                                        @endif
                                        @if ($errors->has('token'))
                                            <span class="text-danger">{{ $errors->first('token') }}</span>
                                        @endif
                                    </div>  
                                </div>
                            </div>
                   
                            <div class="form-group text-center">
                                <button class="btn btn-success btn-submit">Submit</button>
                            </div>
                        </form>
                    </div>
                </div>
            </div>
        </div>
    </div>
</body>
  
<script type="text/javascript">
    $('#contactUSForm').submit(function(event) {
        event.preventDefault();
    
        grecaptcha.ready(function() {
            grecaptcha.execute("{{ env('GOOGLE_RECAPTCHA_KEY') }}", {action: 'subscribe_newsletter'}).then(function(token) {
                $('#contactUSForm').prepend('<input type="hidden" name="token" value="' + token + '">');
                $('#contactUSForm').unbind('submit').submit();
            });;
        });
    });
</script>
</html>

Run Laravel App:

All the required steps have been done, now you have to type the given below command and hit enter to run the Laravel app:

php artisan serve

Now, Go to your web browser, type the given URL and view the app output:

http://localhost:8000/contact-us

Output: You Email Look Like This

I hope it can help you...