Keen.io page view drop-in

keen.js

// Copy-paste from https://keen.io/docs/clients/javascript/usage-guide/#js-install-guide
var Keen=Keen ||{configure:function(e){this._cf=e},addEvent:function(e,t,n,i){this._eq=this._eq||[],this._eq.push([e,t,n,i])},setGlobalProperties:function(e){this._gp=e},onChartsReady:function(e){this._ocrq=this._ocrq||[],this._ocrq.push(e)}};(function(){var e=document.createElement("script");e.type="text/javascript",e.async=!0,e.src=("https:"==document.location.protocol?"https://":"http://")+"dc8na2hxrj29i.cloudfront.net/code/keen-2.1.0-min.js";var t=document.getElementsByTagName("script")[0];t.parentNode.insertBefore(e,t)})();

// readKey is not required for this example
Keen.configure({ 
  projectId: "your_project_id", 
  writeKey: "your_write_key",
  readKey: "your_read_key"
});

// Attach your own properties when logging events
Keen.addEvent('pageView', {
  page: window.location.href,
  time: new Date().toISOString(),
  referrer: document.referrer,
  agent: window.navigator.userAgent
});