Adapter displayio (#1)

Display.io prebid adapter

adapters/displayio/displayio.go

@@ -0,0 +1,207 @@
+package displayio
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"github.com/prebid/openrtb/v20/openrtb2"
+	"github.com/prebid/prebid-server/v2/adapters"
+	"github.com/prebid/prebid-server/v2/config"
+	"github.com/prebid/prebid-server/v2/errortypes"
+	"github.com/prebid/prebid-server/v2/macros"
+	"github.com/prebid/prebid-server/v2/openrtb_ext"
+	"net/http"
+	"text/template"
+)
+
+type DisplayioAdapter struct {
+	endpoint *template.Template
+}
+
+type reqDioExt struct {
+	UserSession string `json:"userSession,omitempty"`
+	PlacementId string `json:"placementId"`
+	InventoryId string `json:"inventoryId"`
+}
+
+func (adapter *DisplayioAdapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapters.ExtraRequestInfo) ([]*adapters.RequestData, []error) {
+	headers := http.Header{}
+	headers.Add("Content-Type", "application/json;charset=utf-8")
+	headers.Add("Accept", "application/json")
+	headers.Add("x-openrtb-version", "2.5")
+
+	var requestExt map[string]interface{}
+	var dioExt reqDioExt
+
+	if len(request.Imp) == 0 {
+		return nil, []error{&errortypes.BadInput{Message: "No impression in the bid request"}}
+	}
+
+	impressions := request.Imp
+	result := make([]*adapters.RequestData, 0, len(impressions))
+	errs := make([]error, 0, len(impressions))
+
+	for i, impression := range impressions {
+		if impression.BidFloor == 0 {
+			errs = append(errs, &errortypes.BadInput{
+				Message: "BidFloor should be defined",
+			})
+			continue
+		}
+
+		if impression.BidFloorCur == "" {
+			impression.BidFloorCur = "USD"
+		}
+
+		if impression.BidFloorCur != "USD" {
+			convertedValue, err := requestInfo.ConvertCurrency(impression.BidFloor, impression.BidFloorCur, "USD")
+
+			if err != nil {
+				errs = append(errs, err)
+				continue
+			}
+
+			impression.BidFloorCur = "USD"
+			impression.BidFloor = convertedValue
+		}
+
+		if len(impression.Ext) == 0 {
+			errs = append(errs, errors.New("impression extensions required"))
+			continue
+		}
+
+		var bidderExt adapters.ExtImpBidder
+		err := json.Unmarshal(impression.Ext, &bidderExt)
+
+		if err != nil {
+			errs = append(errs, err)
+			continue
+		}
+		if len(bidderExt.Bidder) == 0 {
+			errs = append(errs, errors.New("bidder required"))
+			continue
+		}
+		var impressionExt openrtb_ext.ExtImpDisplayio
+		err = json.Unmarshal(bidderExt.Bidder, &impressionExt)
+		if err != nil {
+			errs = append(errs, err)
+			continue
+		}
+
+		if i == 0 {
+			dioExt = reqDioExt{PlacementId: impressionExt.PlacementId, InventoryId: impressionExt.InventoryId}
+
+			err = json.Unmarshal(request.Ext, &requestExt)
+			if err != nil {
+				requestExt = make(map[string]interface{})
+			}
+
+			requestExt["displayio"] = dioExt
+
+			request.Ext, err = json.Marshal(requestExt)
+			if err != nil {
+				errs = append(errs, err)
+				continue
+			}
+		}
+
+		request.Imp = []openrtb2.Imp{impression}
+		body, err := json.Marshal(request)
+		if err != nil {
+			errs = append(errs, err)
+			continue
+		}
+
+		url, err := adapter.buildEndpointURL(&impressionExt)
+		if err != nil {
+			return nil, []error{err}
+		}
+
+		result = append(result, &adapters.RequestData{
+			Method:  "POST",
+			Uri:     url,
+			Body:    body,
+			Headers: headers,
+			ImpIDs:  openrtb_ext.GetImpIDs(request.Imp),
+		})
+	}
+
+	request.Imp = impressions
+
+	if len(result) == 0 {
+		return nil, errs
+	}
+	return result, errs
+}
+
+// MakeBids translates Displayio bid response to prebid-server specific format
+func (adapter *DisplayioAdapter) MakeBids(internalRequest *openrtb2.BidRequest, _ *adapters.RequestData, responseData *adapters.ResponseData) (*adapters.BidderResponse, []error) {
+
+	if adapters.IsResponseStatusCodeNoContent(responseData) {
+		return nil, nil
+	}
+
+	if err := adapters.CheckResponseStatusCodeForErrors(responseData); err != nil {
+		return nil, []error{err}
+	}
+
+	var bidResp openrtb2.BidResponse
+
+	if err := json.Unmarshal(responseData.Body, &bidResp); err != nil {
+		msg := fmt.Sprintf("Bad server response: %d", err)
+		return nil, []error{&errortypes.BadServerResponse{Message: msg}}
+	}
+
+	if len(bidResp.SeatBid) != 1 {
+		msg := fmt.Sprintf("Invalid SeatBids count: %d", len(bidResp.SeatBid))
+		return nil, []error{&errortypes.BadServerResponse{Message: msg}}
+	}
+
+	var errs []error
+	bidResponse := adapters.NewBidderResponse()
+
+	for _, sb := range bidResp.SeatBid {
+		for i := range sb.Bid {
+			bidType, err := getBidMediaTypeFromMtype(&sb.Bid[i])
+			if err != nil {
+				errs = append(errs, err)
+			} else {
+				b := &adapters.TypedBid{
+					Bid:     &sb.Bid[i],
+					BidType: bidType,
+				}
+				bidResponse.Bids = append(bidResponse.Bids, b)
+			}
+		}
+	}
+
+	return bidResponse, errs
+}
+
+func Builder(_ openrtb_ext.BidderName, config config.Adapter, _ config.Server) (adapters.Bidder, error) {
+	endpoint, err := template.New("endpointTemplate").Parse(config.Endpoint)
+	if err != nil {
+		return nil, fmt.Errorf("unable to parse endpoint url template: %v", err)
+	}
+
+	bidder := &DisplayioAdapter{
+		endpoint: endpoint,
+	}
+	return bidder, nil
+}
+
+func getBidMediaTypeFromMtype(bid *openrtb2.Bid) (openrtb_ext.BidType, error) {
+	switch bid.MType {
+	case openrtb2.MarkupBanner:
+		return openrtb_ext.BidTypeBanner, nil
+	case openrtb2.MarkupVideo:
+		return openrtb_ext.BidTypeVideo, nil
+	default:
+		return "", fmt.Errorf("unexpected media type for bid: %s", bid.ImpID)
+	}
+}
+
+func (adapter *DisplayioAdapter) buildEndpointURL(params *openrtb_ext.ExtImpDisplayio) (string, error) {
+	endpointParams := macros.EndpointTemplateParams{PublisherID: params.PublisherId}
+	return macros.ResolveMacros(adapter.endpoint, endpointParams)
+}

adapters/displayio/displayio_test.go

@@ -0,0 +1,23 @@
+package displayio
+
+import (
+	"testing"
+
+	"github.com/prebid/prebid-server/v2/config"
+	"github.com/prebid/prebid-server/v2/openrtb_ext"
+
+	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
+)
+
+func TestJsonSamples(t *testing.T) {
+	bidder, buildErr := Builder(openrtb_ext.BidderDisplayio,
+		config.Adapter{Endpoint: "https://101.prebid.display.io"},
+		config.Server{ExternalUrl: "https://101.prebid.display.io"},
+	)
+
+	if buildErr != nil {
+		t.Fatalf("Builder returned unexpected error %v", buildErr)
+	}
+
+	adapterstest.RunJSONBidderTest(t, "displayiotest", bidder)
+}