Adding error check and making sure that priceType can be optional.

adapters/adnuntius/adnuntius.go

@@ -200,6 +200,7 @@ func (a *adapter) generateRequests(ortbRequest openrtb2.BidRequest) ([]*adapters
 				Message: fmt.Sprintf("ignoring imp id=%s, Adnuntius supports only Banner", imp.ID),
 			}}
 		}
+
 		var bidderExt adapters.ExtImpBidder
 		if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
 			return nil, []error{&errortypes.BadInput{
@@ -210,7 +211,7 @@ func (a *adapter) generateRequests(ortbRequest openrtb2.BidRequest) ([]*adapters
 		var adnuntiusExt openrtb_ext.ImpExtAdnunitus
 		if err := json.Unmarshal(bidderExt.Bidder, &adnuntiusExt); err != nil {
 			return nil, []error{&errortypes.BadInput{
-				Message: fmt.Sprintf("Error unmarshalling ExtImpBmtm: %s", err.Error()),
+				Message: fmt.Sprintf("Error unmarshalling ExtImpValues: %s", err.Error()),
 			}}
 		}
 
@@ -351,13 +352,26 @@ func generateAdResponse(ad Ad, imp openrtb2.Imp, html string, request *openrtb2.
 	}
 
 	price := ad.Bid.Amount
-	priceType, _, _, _ := jsonparser.Get(imp.Ext, "bidder", "priceType")
 
-	if string(priceType) != "" {
-		if strings.ToLower(string(priceType)) == "net" {
+	var bidderExt adapters.ExtImpBidder
+	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
+		return nil, []error{&errortypes.BadInput{
+			Message: fmt.Sprintf("Error unmarshalling ExtImpBidder: %s", err.Error()),
+		}}
+	}
+
+	var adnuntiusExt openrtb_ext.ImpExtAdnunitus
+	if err := json.Unmarshal(bidderExt.Bidder, &adnuntiusExt); err != nil {
+		return nil, []error{&errortypes.BadInput{
+			Message: fmt.Sprintf("Error unmarshalling ExtImpValues: %s", err.Error()),
+		}}
+	}
+
+	if adnuntiusExt.PriceType != "" {
+		if strings.EqualFold(string(adnuntiusExt.PriceType), "net") {
 			price = ad.NetBid.Amount
 		}
-		if strings.ToLower(string(priceType)) == "gross" {
+		if strings.EqualFold(string(adnuntiusExt.PriceType), "gross") {
 			price = ad.GrossBid.Amount
 		}
 	}

adapters/adnuntius/adnuntiustest/supplemental/check-price-type-error.json

@@ -0,0 +1,38 @@
+{
+	"mockBidRequest": {
+		"id": "test-request-id",
+		"user": {
+			"id": "1kjh3429kjh295jkl"
+		},
+		"imp": [
+			{
+				"id": "test-imp-id",
+				"banner": {
+					"format": [
+						{
+							"w": 300,
+							"h": 250
+						},
+						{
+							"w": 300,
+							"h": 600
+						}
+					]
+				},
+				"ext": {
+					"bidder": {
+						"auId": "123",
+						"priceType": 123
+					}
+				}
+			}
+		]
+	},
+	"httpCalls": [],
+	"expectedMakeRequestsErrors": [
+		{
+			"value": "Error unmarshalling ExtImpValues: json: cannot unmarshal number into Go struct field ImpExtAdnunitus.priceType of type string",
+			"comparison": "literal"
+		}
+	]
+}