[EXCH-11021] add support for native imps in golang prebid server

adapters/openx/openx.go

@@ -34,23 +34,26 @@ type openxRespExt struct {
 
 func (a *OpenxAdapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.ExtraRequestInfo) ([]*adapters.RequestData, []error) {
 	var errs []error
-	var bannerImps []openrtb2.Imp
+	var bannerAndNativeImps []openrtb2.Imp
 	var videoImps []openrtb2.Imp
 
 	for _, imp := range request.Imp {
-		// OpenX doesn't allow multi-type imp. Banner takes priority over video.
+		// OpenX doesn't allow multi-type imp. Banner takes priority over video and video takes priority over native
+		// Openx also wants to send banner and native imps in one request
 		if imp.Banner != nil {
-			bannerImps = append(bannerImps, imp)
+			bannerAndNativeImps = append(bannerAndNativeImps, imp)
 		} else if imp.Video != nil {
 			videoImps = append(videoImps, imp)
+		} else if imp.Native != nil {
+			bannerAndNativeImps = append(bannerAndNativeImps, imp)
 		}
 	}
 
 	var adapterRequests []*adapters.RequestData
 	// Make a copy as we don't want to change the original request
 	reqCopy := *request
 
-	reqCopy.Imp = bannerImps
+	reqCopy.Imp = bannerAndNativeImps
 	adapterReq, errors := a.makeRequest(&reqCopy)
 	if adapterReq != nil {
 		adapterRequests = append(adapterRequests, adapterReq)
@@ -256,12 +259,17 @@ func getBidVideo(bid *openrtb2.Bid) *openrtb_ext.ExtBidPrebidVideo {
 //
 // OpenX doesn't support multi-type impressions.
 // If both banner and video exist, take banner as we do not want in-banner video.
+// If both video and native exist and banner is nil, take video.
+// If both banner and native exist, take banner.
+// If all of the types (banner, video, native) exist, take banner.
 func getMediaTypeForImp(impId string, imps []openrtb2.Imp) openrtb_ext.BidType {
 	mediaType := openrtb_ext.BidTypeBanner
 	for _, imp := range imps {
 		if imp.ID == impId {
 			if imp.Banner == nil && imp.Video != nil {
 				mediaType = openrtb_ext.BidTypeVideo
+			} else if imp.Banner == nil && imp.Native != nil {
+				mediaType = openrtb_ext.BidTypeNative
 			}
 			return mediaType
 		}

adapters/openx/openxtest/exemplary/simple-banner.json

@@ -50,7 +50,7 @@
                 "id": "8ee514f1-b2b8-4abb-89fd-084437d1e800",
                 "impid": "test-imp-id",
                 "price": 0.500000,
-                "adm": "some-test-ad",
+                "adm": "{\"ver\": \"1.2\", \"assets\": [{\"id\": 1, \"required\": 1,\"title\": {\"text\": \"OpenX (Title)\"}}], \"link\": {\"url\": \"https://www.openx.com/\"}, \"eventtrackers\":[{\"event\":1,\"method\":1,\"url\":\"http://example.com/impression\"}]}",
                 "crid": "crid_10",
                 "h": 90,
                 "w": 728
@@ -72,7 +72,7 @@
             "id": "8ee514f1-b2b8-4abb-89fd-084437d1e800",
             "impid": "test-imp-id",
             "price": 0.5,
-            "adm": "some-test-ad",
+            "adm": "{\"ver\": \"1.2\", \"assets\": [{\"id\": 1, \"required\": 1,\"title\": {\"text\": \"OpenX (Title)\"}}], \"link\": {\"url\": \"https://www.openx.com/\"}, \"eventtrackers\":[{\"event\":1,\"method\":1,\"url\":\"http://example.com/impression\"}]}",
             "crid": "crid_10",
             "w": 728,
             "h": 90

adapters/openx/openxtest/exemplary/simple-native.json

@@ -0,0 +1,87 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "native": {
+          "request": "{\"ver\":\"1.2\",\"assets\":[{\"id\":1,\"required\":1,\"title\":{\"len\":90}},{\"id\":2,\"required\":1,\"img\":{\"type\":3,\"wmin\":1200,\"hmin\":627}}],\"eventtrackers\":[{\"event\":1,\"methods\":[1,2]}]}",
+          "ver": "1.2"
+        },
+        "ext": {
+          "bidder": {
+            "unit": "539439964",
+            "delDomain": "se-demo-d.openx.net"
+          }
+        }
+      }
+    ]
+  },
+
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "http://rtb.openx.net/prebid",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id": "test-imp-id",
+              "native": {
+                "request": "{\"ver\":\"1.2\",\"assets\":[{\"id\":1,\"required\":1,\"title\":{\"len\":90}},{\"id\":2,\"required\":1,\"img\":{\"type\":3,\"wmin\":1200,\"hmin\":627}}],\"eventtrackers\":[{\"event\":1,\"methods\":[1,2]}]}",
+                "ver": "1.2"
+              },
+              "tagid": "539439964"
+            }
+          ],
+          "ext": {
+            "bc": "hb_pbs_1.0.0",
+            "delDomain": "se-demo-d.openx.net"
+          }
+        },
+        "impIDs":["test-imp-id"]
+      },
+      "mockResponse": {
+        "status": 200,
+        "body": {
+          "id": "test-request-id",
+          "cur": "USD",
+          "seatbid": [
+            {
+              "seat": "openx",
+              "bid": [{
+                "id": "8ee514f1-b2b8-4abb-89fd-084437d1e800",
+                "impid": "test-imp-id",
+                "price": 0.500000,
+                "adm": "{\"ver\": \"1.2\", \"assets\": [{\"id\": 1, \"required\": 1,\"title\": {\"text\": \"OpenX (Title)\"}}], \"link\": {\"url\": \"https://www.openx.com/\"}, \"eventtrackers\":[{\"event\":1,\"method\":1,\"url\":\"http://example.com/impression\"}]}",
+                "crid": "crid_10",
+                "w": 300,
+                "h": 200
+              }]
+            }
+          ]
+        }
+      }
+    }
+  ],
+
+  "expectedBidResponses": [
+    {
+      "currency": "USD",
+      "bids": [
+        {
+          "bid": {
+            "id": "8ee514f1-b2b8-4abb-89fd-084437d1e800",
+            "impid": "test-imp-id",
+            "price": 0.5,
+            "adm": "{\"ver\": \"1.2\", \"assets\": [{\"id\": 1, \"required\": 1,\"title\": {\"text\": \"OpenX (Title)\"}}], \"link\": {\"url\": \"https://www.openx.com/\"}, \"eventtrackers\":[{\"event\":1,\"method\":1,\"url\":\"http://example.com/impression\"}]}",
+            "crid": "crid_10",
+            "w": 300,
+            "h": 200
+          },
+          "type": "native"
+        }
+      ]
+    }
+  ]
+}