const electronSteamAuth = require('electron-steam-openid');

var config = {
  redirectUri: 'http://localhost'
};

app.on('ready', () => {
  const windowParams = {
    alwaysOnTop: true,
    autoHideMenuBar: true,
    webPreferences: {
      nodeIntegration: false
    }
  }

  const auth = electronSteamAuth(config, windowParams);

  auth.authenticate(options)
    .then(token => {
      // use your token.steam_id
    });
});