Adding Facebook Authentication to a Laravel Website

With social authentication, users do not have to fill out forms in order to register on your website; they also do not need to remember another password in other to access their accounts on your website. This article will provide a step-by-step process to add Facebook authentication to your website

Assumptions:

This tutorial assumes that you have PHP and Composer installed on your computer. It also uses XAMPP’s Apache and MySQL installations. It is therefore assumed that the reader is familiar with XAMPP. Visit the Composer and XAMPP websites to download them.

1. Create a new Laravel project

composer create-project laravel/laravel social-auth

2. Configure your database setup

  1. Create a new database called “social-auth” in phpMyAdmin
  2. Edit your .env file with the appropriate details as shown below

3. Setup your basic authentication system with Laravel Breeze

To setup Laravel Breeze, run the following lines in the order they appear on your command line:

composer require laravel/breeze --devphp artisan breeze:installnpm installnpm run devphp artisan migrate

4. Make the email field in your users migration file nullable

Run the following line to reflect the change in your database.

php artisan migrate:refresh

5. Install Laravel Socialite and add provider and alias in your config file

composer require laravel/socialite

In your config/app.php, add Socialite to your providers and aliases arrays thus:

....
....
'providers' => [
....
....
Laravel\Socialite\SocialiteServiceProvider::class,
],

'aliases' => [
....
....
'Socialite' => Laravel\Socialite\Facades\Socialite::class,
],
....
....

6. Create a new Facebook app

  1. Click the Create app button

2. When this page appears, click the “consumer” option and continue

3. After that, you get a screen that looks like this

Fill the security check that appears and you will get a new screen a portion of which is shown below.

4. Click the “Set Up” button for the “Facebook Login” option.

5. Pick the “Web” option

6. For the next screen type “http://localhost:8000” into they Site Url input.

7. Click the next button for the rest of the steps.

8. Navigate to Settings under Facebook login and add your redirect url.

9. Navigate to the settings and then to Basic. Your applications client id and client secret will be available here.

Add a facebook entry to your config/services.php file.

return [
....
....
....
'facebook' => [
'client_id' => env('FACEBOOK_CLIENT_ID'),
'client_secret' => env('FACEBOOK_CLIENT_SECRET',
'redirect' => env('FACEBOOK_CLIENT_REDIERECT',
],
]

Add the following to your .env file. Replace the placeholders for your client id and client secret with the actual values you just acquired.

FACEBOOK_CLIENT_ID="Your Facebook app id"
FACEBOOK_CLIENT_SECRET="Your Facebook client secret"
FACEBOOK_CLIENT_REDIERECT="http://localhost:8000/auth/facebook/callback"

7. Add a“facebook_id” column to your “users” table

php artisan make:migration add_facebook_id_to_users_table

Make the following changes to the file created.

Run the following line to update your database

php artisan migrate:refresh

8. Setup your Facebook authentication routes

use App\Http\Controllers\SocialController;
//Facebook Authentication RoutesRoute::get('auth/facebook', [SocialController::class, 'facebookRedirect'])->name('login.facebook');Route::get('auth/facebook/callback', [SocialController::class, 'facebookCallback']);

9. Create and configure controller to handle the routes

php artisan make:controller SocialController

Define facebookRedirect() and facebookCallback() as shown below:

10. Add Facebook login link to your registration and login pages

<div class="flex items-center justify-end mt-4">
<a href="{{ route('login.facebook') }}" class="underline text-sm text-gray-600 hover:text-gray-900">
Login With facebook
</a>
</div>

11. Voila! You are done !!