Update existed electron app

We have an app based on html an javascipt. (Electron app an website app) We want to get latitud an longitud for the users that use our desktop app and website app in the moment they login into the app or click a button, could be by ip. So we need the library or the best solution. The project is an employer attendance app for desktop an website IMPORTANT we are looking how can do this with out use Google Geolocation api get the geolocation in the electronjs project