Prebid Server Bid Adapter: Expose errors and server response times always

modules/prebidServerBidAdapter/index.js

@@ -369,6 +369,18 @@ function addWurl(auctionId, adId, wurl) {
   }
 }
 
+function getPbsResponseData(bidderRequests, response, pbsName, pbjsName) {
+  const bidderValues = utils.deepAccess(response, `ext.${pbsName}`);
+  if (bidderValues) {
+    Object.keys(bidderValues).forEach(bidder => {
+      let biddersReq = find(bidderRequests, bidderReq => bidderReq.bidderCode === bidder);
+      if (biddersReq) {
+        biddersReq[pbjsName] = bidderValues[bidder];
+      }
+    });
+  }
+}
+
 /**
  * @param {string} auctionId
  * @param {string} adId generated value set to bidObject.adId by bidderFactory Bid()
@@ -676,6 +688,9 @@ const OPEN_RTB_PROTOCOL = {
   interpretResponse(response, bidderRequests) {
     const bids = [];
 
+    [['errors', 'serverErrors'], ['responsetimemillis', 'serverResponseTimeMs']]
+      .forEach(info => getPbsResponseData(bidderRequests, response, info[0], info[1]))
+
     if (response.seatbid) {
       // a seatbid object contains a `bid` array and a `seat` string
       response.seatbid.forEach(seatbid => {
@@ -698,6 +713,8 @@ const OPEN_RTB_PROTOCOL = {
 
           bidObject.cpm = cpm;
 
+          // temporarily leaving attaching it to each bidResponse so no breaking change
+          // BUT: this is a flat map, so it should be only attached to bidderRequest, a the change above does
           let serverResponseTimeMs = utils.deepAccess(response, ['ext', 'responsetimemillis', seatbid.seat].join('.'));
           if (bidRequest && serverResponseTimeMs) {
             bidRequest.serverResponseTimeMs = serverResponseTimeMs;

modules/rubiconAnalyticsAdapter.js

@@ -13,6 +13,14 @@ const COOKIE_NAME = 'rpaSession';
 const LAST_SEEN_EXPIRE_TIME = 1800000; // 30 mins
 const END_EXPIRE_TIME = 21600000; // 6 hours
 
+const pbsErrorMap = {
+  1: 'timeout-error',
+  2: 'input-error',
+  3: 'connect-error',
+  4: 'request-error',
+  999: 'generic-error'
+}
+
 let prebidGlobal = getGlobal();
 const {
   EVENTS: {
@@ -631,10 +639,22 @@ let rubiconAdapter = Object.assign({}, baseAdapter, {
         bid.bidResponse = parseBidResponse(args, bid.bidResponse);
         break;
       case BIDDER_DONE:
+        const serverError = utils.deepAccess(args, 'serverErrors.0');
+        const serverResponseTimeMs = args.serverResponseTimeMs;
         args.bids.forEach(bid => {
           let cachedBid = cache.auctions[bid.auctionId].bids[bid.bidId || bid.requestId];
           if (typeof bid.serverResponseTimeMs !== 'undefined') {
             cachedBid.serverLatencyMillis = bid.serverResponseTimeMs;
+          } else if (serverResponseTimeMs && bid.source === 's2s') {
+            cachedBid.serverLatencyMillis = serverResponseTimeMs;
+          }
+          // if PBS said we had an error, and this bid has not been processed by BID_RESPONSE YET
+          if (serverError && (!cachedBid.status || ['no-bid', 'error'].indexOf(cachedBid.status) !== -1)) {
+            cachedBid.status = 'error';
+            cachedBid.error = {
+              code: pbsErrorMap[serverError.code] || pbsErrorMap[999],
+              description: serverError.message
+            }
           }
           if (!cachedBid.status) {
             cachedBid.status = 'no-bid';
@@ -675,10 +695,14 @@ let rubiconAdapter = Object.assign({}, baseAdapter, {
         args.forEach(badBid => {
           let auctionCache = cache.auctions[badBid.auctionId];
           let bid = auctionCache.bids[badBid.bidId || badBid.requestId];
-          bid.status = 'error';
-          bid.error = {
-            code: 'timeout-error'
-          };
+          // might be set already by bidder-done, so do not overwrite
+          if (bid.status !== 'error') {
+            bid.status = 'error';
+            bid.error = {
+              code: 'timeout-error',
+              message: 'marked by prebid.js as timeout' // will help us diff if timeout was set by PBS or PBJS
+            };
+          }
         });
         break;
     }

test/spec/modules/rubiconAnalyticsAdapter_spec.js

@@ -310,6 +310,7 @@ const MOCK = {
   ],
   BIDDER_DONE: {
     'bidderCode': 'rubicon',
+    'serverResponseTimeMs': 42,
     'bids': [
       BID,
       Object.assign({}, BID2, {