Emit initial auction event

* Generate random v4 UUID for auction id
* Remove redundant param from BID_RESPONSE event
* Send all configuration options
* Remove referrer

src/adaptermanager.js

@@ -26,7 +26,13 @@ function getBids({ bidderCode, requestId, bidderRequestId, adUnits }) {
 }
 
 exports.callBids = ({ adUnits, cbTimeout }) => {
-  const requestId = utils.getUniqueIdentifierStr();
+  const requestId = utils.generateUUID();
+
+  const auctionInit = {
+    timestamp: Date.now(),
+    requestId,
+  };
+  events.emit(CONSTANTS.EVENTS.AUCTION_INIT, auctionInit);
 
   getBidderCodes(adUnits).forEach(bidderCode => {
     const adapter = _bidderRegistry[bidderCode];

src/adapters/analytics/AnalyticsAdapter.js

@@ -5,6 +5,7 @@ import { ajax } from 'src/ajax';
 const events = require('src/events');
 const utils = require('../../utils');
 
+const AUCTION_INIT = CONSTANTS.EVENTS.AUCTION_INIT;
 const BID_REQUESTED = CONSTANTS.EVENTS.BID_REQUESTED;
 const BID_TIMEOUT = CONSTANTS.EVENTS.BID_TIMEOUT;
 const BID_RESPONSE = CONSTANTS.EVENTS.BID_RESPONSE;
@@ -67,7 +68,7 @@ export default function AnalyticsAdapter({ url, analyticsType, global, handler }
     }
   }
 
-  function _enable() {
+  function _enable(config) {
     var _this = this;
 
     //first send all events fired before enableAnalytics called
@@ -93,6 +94,10 @@ export default function AnalyticsAdapter({ url, analyticsType, global, handler }
     events.on(BID_TIMEOUT, args => this.enqueue({ eventType: BID_TIMEOUT, args }));
     events.on(BID_WON, args => this.enqueue({ eventType: BID_WON, args }));
     events.on(BID_ADJUSTMENT, args => this.enqueue({ eventType: BID_ADJUSTMENT, args }));
+    events.on(AUCTION_INIT, args => {
+      args.config = config.options;  // enableAnaltyics configuration object
+      this.enqueue({ eventType: AUCTION_INIT, args });
+    });
 
     // finally set this function to return log message, prevents multiple adapter listeners
     this.enableAnalytics = function _enable() {

src/adapters/analytics/ga.js

@@ -71,7 +71,7 @@ exports.enableAnalytics = function ({ provider, options }) {
   });
 
   //bidResponses
-  events.on(BID_RESPONSE, function (adunit, bid) {
+  events.on(BID_RESPONSE, function (bid) {
     sendBidResponseToGa(bid);
     sendBidTimeouts(bid);
   });

src/bidmanager.js

@@ -88,7 +88,7 @@ exports.addBidResponse = function (adUnitCode, bid) {
     events.emit(CONSTANTS.EVENTS.BID_ADJUSTMENT, bid);
 
     //emit the bidResponse event
-    events.emit(CONSTANTS.EVENTS.BID_RESPONSE, adUnitCode, bid);
+    events.emit(CONSTANTS.EVENTS.BID_RESPONSE, bid);
 
     //append price strings
     const priceStringsObj = getPriceBucketString(bid.cpm, bid.height, bid.width);

src/constants.json

@@ -28,6 +28,7 @@
   "objectType_string": "string",
   "objectType_number": "number",
   "EVENTS": {
+    "AUCTION_INIT": "auctionInit",
     "BID_ADJUSTMENT": "bidAdjustment",
     "BID_TIMEOUT": "bidTimeout",
     "BID_REQUESTED": "bidRequested",

src/utils.js

@@ -55,6 +55,19 @@ function _getUniqueIdentifierStr() {
 //generate a random string (to be used as a dynamic JSONP callback)
 exports.getUniqueIdentifierStr = _getUniqueIdentifierStr;
 
+/**
+ * Returns a random v4 UUID of the form xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx,
+ * where each x is replaced with a random hexadecimal digit from 0 to f,
+ * and y is replaced with a random hexadecimal digit from 8 to b.
+ * https://gist.github.com/jed/982883 via node-uuid
+ */
+exports.generateUUID = function generateUUID(placeholder) {
+  return placeholder ?
+    (placeholder ^ Math.random() * 16 >> placeholder/4).toString(16)
+    :
+    ([1e7] + -1e3 + -4e3 + -8e3 + -1e11).replace(/[018]/g, generateUUID);
+};
+
 exports.getBidIdParamater = function (key, paramsObj) {
   if (paramsObj && paramsObj[key]) {
     return paramsObj[key];