LinkStack/app/Http/Controllers/Auth/SocialLoginController.php

<?php

namespace App\Http\Controllers\Auth;

use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use App\Models\User;
use App\Models\SocialAccount;

class SocialLoginController extends Controller
{
    public function redirectToProvider(String $provider)
    {
        return \Socialite::driver($provider)->redirect();
    }

    public function providerCallback(String $provider)
    {
        try {
            $social_user = \Socialite::driver($provider)->user();

            // First Find Social Account
            $account = SocialAccount::where([
                'provider_name' => $provider,
                'provider_id' => $social_user->getId()
            ])->first();

            // If Social Account Exist then Find User and Login
            if ($account) {
                auth()->login($account->user);
                return redirect('/studio/index');
            }

            // Find User
            $user = User::where([
                'email' => $social_user->getEmail()
            ])->first();

            // If User not found, then create new user
            if (!$user) {
                $user = User::create([
                    'email' => $social_user->getEmail(),
                    'name' => $social_user->getName(),
                    'image' => $social_user->getAvatar(),
                    'littlelink_name' => $social_user->getNickname(),
                    'email_verified_at' => now(),
                ]);
            }

            // Create Social Accounts
            $user->socialAccounts()->create([
                'provider_id' => $social_user->getId(),
                'provider_name' => $provider
            ]);

            // Login
            auth()->login($user);
            return redirect('/studio/index');
        } catch (\Exception $e) {
            return redirect()->route('login')->withErrors($e->getMessage());
        }
    }
}