Basic single sign on in Laravel

Great! Laravel provides a built-in authentication system that can be used for single sign-on (SSO) purposes. Here's a high-level overview of how you can implement SSO in Laravel:

1. Install the necessary packages:
You will need to install the following packages in your Laravel project:

• laracasts/auth - This package provides the basic authentication functionality for Laravel.
• tymondesign/jwt-auth - This package provides JWT (JSON Web Tokens) authentication, which is a popular method for implementing SSO.

2. Set up the authentication system:
In your config/auth.php file, you will need to define the authentication drivers that you want to use. For example:

'providers' => [
    // Google Auth
    App\Providers\GoogleAuthProvider::class,
],

3. Create a custom authentication provider:

In your app/Providers directory, create a new file called GoogleAuthProvider.php. This file will contain the code for your custom authentication provider. Here's an example of what it might look like:

namespace App\Providers;
use Illuminate\Support\Facades\Http;
class GoogleAuthProvider extends \Tymon\JWTAuth\Providers\GoogleAuthProvider
{
    public function redirectToGoogle()
    {
        return route('auth.login');

    public function handleGoogleCallback()
    {
        $user = $this->getUser();

        // Save the user to the database
        auth()->login($user);

        // Redirect the user back to the application
        return redirect()->intended(route('home'));

    }
}

4. Configure the JWT authentication middleware:

In your config/auth.php file, you will need to configure the JWT authentication middleware. Here's an example of what it might look like:

'middleware' => [
    // ...
    \Tymon\JWTAuth\Facades\JWTAuth::class,
],

5. Use the SSO functionality:

Once you have set up the authentication system and middleware, you can use the SSO functionality in your application. For example, you might use the auth()->user() method to retrieve the currently authenticated user, or use the Auth::check() method to check if a user is authenticated.

6. Implement the login and logout routes:
You will also need to implement the login and logout routes in your application. For example:

Route::get('/login', function () {
    return view('auth.login');
});
Route::post('/login', 'LoginController@login');

Route::get('/logout', function () {
    auth()->logout();

    return redirect()->intended(route('home'));
});

These are the basic steps for implementing single sign-on with Laravel. Of course, there are many other configuration options and customization possibilities, but this should give you a good starting point.