Add support for userid modules in Yieldlab adapter (#5022)

* Add support for userid modules in Yieldlab adapter

* Change for-of-loop for IE11 compatibility

* Check if userIdAsEids is an array

modules/yieldlabBidAdapter.js

@@ -39,6 +39,9 @@ export const spec = {
       if (bid.params.targeting) {
         query.t = createQueryString(bid.params.targeting)
       }
+      if (bid.userIdAsEids && Array.isArray(bid.userIdAsEids)) {
+        query.ids = createUserIdString(bid.userIdAsEids)
+      }
     })
 
     if (bidderRequest && bidderRequest.gdprConsent) {
@@ -162,6 +165,19 @@ function parseSize (size) {
   return size.split('x').map(Number)
 }
 
+/**
+ * Creates a string out of an array of eids with source and uid
+ * @param {Array} eids
+ * @returns {String}
+ */
+function createUserIdString (eids) {
+  let str = []
+  for (let i = 0; i < eids.length; i++) {
+    str.push(eids[i].source + ':' + eids[i].uids[0].id)
+  }
+  return str.join(',')
+}
+
 /**
  * Creates a querystring out of an object with key-values
  * @param {Object} obj

test/spec/modules/yieldlabBidAdapter_spec.js

@@ -18,7 +18,14 @@ const REQUEST = {
   'auctionId': '2e41f65424c87c',
   'adUnitCode': 'adunit-code',
   'bidId': '2d925f27f5079f',
-  'sizes': [728, 90]
+  'sizes': [728, 90],
+  'userIdAsEids': [{
+    'source': 'netid.de',
+    'uids': [{
+      'id': 'fH5A3n2O8_CZZyPoJVD-eabc6ECb7jhxCicsds7qSg',
+      'atype': 1
+    }]
+  }]
 }
 
 const RESPONSE = {
@@ -77,6 +84,10 @@ describe('yieldlabBidAdapter', function () {
       expect(request.url).to.include('t=key1%3Dvalue1%26key2%3Dvalue2')
     })
 
+    it('passes userids to bid request', function () {
+      expect(request.url).to.include('ids=netid.de%3AfH5A3n2O8_CZZyPoJVD-eabc6ECb7jhxCicsds7qSg')
+    })
+
     const gdprRequest = spec.buildRequests(bidRequests, {
       gdprConsent: {
         consentString: 'BN5lERiOMYEdiAKAWXEND1AAAAE6DABACMA',