App\Http\Middleware\LoginAs::loginAsAndRedirect PHP Method

    protected function loginAsAndRedirect(string $identifier)
    {
        $user = $this->getUser($identifier)->getAuthIdentifier();
        if (empty($user)) {
            throw new Exception('The user you\'re trying to log in as doesn\'t exist');
        }
        auth()->loginUsingId($user);
        return redirect()->to(str_replace("login/{$identifier}", '', request()->fullUrl()));
    }