ga-lite/src/build-event-url.js

Small, cacheable subset of Google Analytics JS client

import getBaseUrl from './get-base-url'
import objectToQueryString from './object-to-query-string'
import fieldsToParams from './fields-to-params'

export default function buildEventUrl(
  trackingId,
  timestamp,
  userId,
  params = {},
  anonymizeIp = false
) {
  const paramsQueryString = objectToQueryString(fieldsToParams(params))
  return (
    getBaseUrl() +
    (paramsQueryString ? '&' + paramsQueryString : '') +
    (anonymizeIp ? '&aip=1' : '') +
    '&cid=' +
    userId +
    '&tid=' +
    trackingId +
    '&z=' +
    timestamp
  )
}