gistfile1.ls

jwt = new googleapis.auth.JWT do
  SERVICE_ACCOUNT_EMAIL
  KEYFILE_PEM
  null
  ['https://www.googleapis.com/auth/analytics.readonly']

err, client <- googleapis.discover 'analytics', 'v3' .execute

err, result <- jwt.authorize
console.log result

err, result <- client.analytics.data.ga.get do
  'ids': 'ga:XXXXXX'
  'start-date': '2014-01-21'
  'end-date': '2014-01-30'
  'metrics': 'ga:visits'
  'dimensions': 'ga:pagePathLevel2'
  'sort': '-ga:visits'
  'filters': 'ga:pagePathLevel1==/bills/'
  'max-results': 25
.with-auth-client jwt
.execute
if err
  console.log 'Error', err
console.log result