/**

 * Social Login

 */

public function socialLogin(Request $request)

{

    $provider = "facebook"; // or $request->input('provider_name') for multiple providers

    $token = $request->input('access_token');

    // get the provider's user. (In the provider server)

    $providerUser = Socialite::driver($provider)->userFromToken($token);

    // check if access token exists etc..

    // search for a user in our server with the specified provider id and provider name

    $user = User::where('provider_name', $provider)->where('provider_id', $providerUser->id)->first();

    // if there is no record with these data, create a new user

    if($user == null){

        $user = User::create([

            'provider_name' => $provider,

            'provider_id' => $providerUser->id,

        ]);

    }

    // create a token for the user, so they can login

    $token = $user->createToken(env('APP_NAME'))->accessToken;

    // return the token for usage

    return response()->json([

        'success' => true,

        'token' => $token

    ]);

}