Add options for API keys and event collection

src/index.js

@@ -1,12 +1,17 @@
 const KeenTracking = require('keen-tracking');
 const responseTime = require('response-time');
 
-const client = new KeenTracking({
-  projectId: process.env.KEEN_PROJECT_ID,
-  writeKey: process.env.KEEN_WRITE_KEY
-});
+module.exports = (options = {}) => {
 
-module.exports = responseTime((req, res, time) => {
+  // Setup options
+  const eventCollection = options.eventCollection || 'anonlytics';
+  const client = new KeenTracking({
+    projectId: options.keenProjectId || process.env.KEEN_PROJECT_ID,
+    writeKey: options.keenWriteKey || process.env.KEEN_WRITE_KEY
+  });
+
+  // Return middleware function
+  return responseTime((req, res, time) => {
 
     // Setup event data
     const eventData = {
@@ -87,5 +92,6 @@ module.exports = responseTime((req, res, time) => {
     });
 
     // Send event data
-  client.recordEvent('analytics', eventData);
-});
+    client.recordEvent(eventCollection, eventData);
+  });
+}