Socialite social auth controller for Laravel SSO

SocialAuthController.php

<?php

namespace App\Http\Controllers\Auth;

use App\Http\Controllers\Controller;
use App\SocialAccountService;
use Laravel\Socialite\Facades\Socialite;

class SocialAuthController extends Controller
{
    public function socialRedirect($provider)
    {
        if (in_array($provider, ['foo'])) {
            return Socialite::with($provider)->redirect();
        }

        return redirect()
            ->route('login')
            ->withErrors([
                'provider' => 'Oops, invalid SSO provider.',
            ]);
    }

    public function socialCallback($provider)
    {
        $socialUser = new SocialAccountService($provider);
        $socialUserRedirect = $socialUser->handleAuthentication();

        return $socialUserRedirect;
    }
}