Meteor JS: client-side version of Accounts.onLogin

onLoginUser.js

// client-side version of Accounts.onLogin
export function onLoginUser(hook) {
  Meteor.subscribe('allUserData', () =>
    Tracker.autorun(function (computation) {
      // waiting for user subscription to load
      if (!_.get(Meteor.user(), 'services.google')) {
        return
      }
      // cancel autorun now that we've authenticated
      computation.stop()
      hook()
    })
  )
}