Fix for issue #30 - add event timelogs.

bid responses now have the following:
-requestTimestamp
-responseTimestamp
-timeToRespond (in ms)

src/adaptermanager.js

@@ -14,7 +14,6 @@ var CONSTANTS = require('./constants.json');
 var _bidderRegistry = {};
 
 
-
 exports.callBids = function(bidderArr) {
 	for (var i = 0; i < bidderArr.length; i++) {
 		//use the bidder code to identify which function to call
@@ -23,6 +22,8 @@ exports.callBids = function(bidderArr) {
 			utils.logMessage('CALLING BIDDER ======= ' + bidder.bidderCode);
 			var currentBidder = _bidderRegistry[bidder.bidderCode];
 			currentBidder.callBids(bidder);
+			var currentTime = new Date().getTime();
+			bidmanager.registerBidRequestTime(bidder.bidderCode, currentTime);
 
 			if (currentBidder.defaultBidderSettings) {
 				bidmanager.registerDefaultBidderSetting(bidder.bidderCode, currentBidder.defaultBidderSettings);

src/bidmanager.js

@@ -30,6 +30,7 @@ var _allBidsAvailable = false;
 var _callbackExecuted = false;
 
 var defaultBidderSettingsMap = {};
+var bidderStartTimes = {};
 
 exports.getPlacementIdByCBIdentifer = function(id) {
 	return pbCallbackMap[id];
@@ -77,6 +78,11 @@ exports.addBidResponse = function(adUnitCode, bid) {
 		};
 
 	if (bid) {
+		//record bid request and resposne time
+		bid.requestTimestamp = bidderStartTimes[bid.bidderCode];
+		bid.responseTimestamp = new Date().getTime();
+		bid.timeToRespond = (bid.responseTimestamp - bid.requestTimestamp) + 'ms';
+
 		//increment the bid count
 		bidResponseRecievedCount++;
 		//get price settings here
@@ -219,6 +225,9 @@ exports.registerDefaultBidderSetting = function(bidderCode, defaultSetting) {
 	defaultBidderSettingsMap[bidderCode] = defaultSetting;
 };
 
+exports.registerBidRequestTime = function(bidderCode, time){
+	bidderStartTimes[bidderCode] = time;
+};
 
 exports.executeCallback = function() {
 

src/utils.js

@@ -35,7 +35,7 @@ exports.replaceTokenInString = function(str, map, token) {
 
     str = str.replace(re, value);
   });
-  return str
+  return str;
 };
 
 /* utility method to get incremental integer starting from 1 */