Make use of Keen addons for event data

lib/keen-middleware.js

@@ -6,20 +6,79 @@ const client = new KeenTracking({
 });
 
 module.exports = (req, res, next) => {
-  // Record an event
+
+  // Setup event data
   const eventData = {
-    url: req.url,
-    path: req.path,
-    ip: req.ip,
     method: req.method,
-    ips: req.ips,
-    url: req.originalUrl,
-    headers: req.headers,
-    params: req.params,
-    protocol: req.protocol,
-    query: req.query,
-    hostname: req.hostname
+    url: {
+      string: `${req.protocol}://${req.headers.host}${req.originalUrl}`
+    },
+    ip: req.ip,
+    userAgent: {
+      string: req.headers['user-agent']
+    },
+    referrer: {
+      url: req.headers.referer
+    }
+  };
+
+  // Enable keen date time addon
+  eventData.keen = {
+    addons: [
+      {
+        name: 'keen:date_time_parser',
+        input: {
+          date_time: 'keen.timestamp',
+        },
+        output: 'timestamp_info'
+      }
+    ]
   };
-  client.recordEvent('pageviews', eventData);
+
+  // Only enable other keen addons if we have the required input
+  const keenAddons = [
+    {
+      name: 'keen:url_parser',
+      input: {
+        url: 'url.string'
+      },
+      output: 'url.components'
+    },
+    {
+      name: 'keen:ip_to_geo',
+      input: {
+        ip: 'ip'
+      },
+      output: 'location'
+    },
+    {
+      name: 'keen:ua_parser',
+      input: {
+        ua_string: 'userAgent.string'
+      },
+      output: 'userAgent.info'
+    },
+    {
+      name: 'keen:referrer_parser',
+      input: {
+        referrer_url: 'referrer.url',
+        page_url: 'url.string'
+      },
+      output: 'referrer.info'
+    }
+  ];
+  keenAddons.forEach(addon => {
+    const hasRequiredProperties = Object
+      .keys(addon.input)
+      .map(key => addon.input[key])
+      .every(requiredProp => requiredProp.split('.').reduce((obj, i) => obj[i], eventData));
+
+    if(hasRequiredProperties) {
+      eventData.keen.addons.push(addon);
+    }
+  });
+
+  // Send event data
+  client.recordEvent('pageviewsv2', eventData);
   next();
 }