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triplelift.go
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triplelift.go
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package triplelift
import (
"encoding/json"
"fmt"
"net/http"
"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/openrtb_ext"
)
type TripleliftAdapter struct {
endpoint string
}
type TripleliftInnerExt struct {
Format int `json:"format"`
}
type TripleliftRespExt struct {
Triplelift TripleliftInnerExt `json:"triplelift_pb"`
}
func getBidType(ext TripleliftRespExt) openrtb_ext.BidType {
t := ext.Triplelift.Format
if t == 11 || t == 12 || t == 17 {
return openrtb_ext.BidTypeVideo
}
return openrtb_ext.BidTypeBanner
}
func processImp(imp *openrtb2.Imp) error {
// get the triplelift extension
var ext adapters.ExtImpBidder
var tlext openrtb_ext.ExtImpTriplelift
if err := json.Unmarshal(imp.Ext, &ext); err != nil {
return err
}
if err := json.Unmarshal(ext.Bidder, &tlext); err != nil {
return err
}
if imp.Banner == nil && imp.Video == nil {
return fmt.Errorf("neither Banner nor Video object specified")
}
imp.TagID = tlext.InvCode
// floor is optional
if tlext.Floor == nil {
return nil
} else {
imp.BidFloor = *tlext.Floor
}
// no error
return nil
}
func (a *TripleliftAdapter) MakeRequests(request *openrtb2.BidRequest, extra *adapters.ExtraRequestInfo) ([]*adapters.RequestData, []error) {
errs := make([]error, 0, len(request.Imp)+1)
reqs := make([]*adapters.RequestData, 0, 1)
// copy the request, because we are going to mutate it
tlRequest := *request
// this will contain all the valid impressions
var validImps []openrtb2.Imp
// pre-process the imps
for _, imp := range tlRequest.Imp {
if err := processImp(&imp); err == nil {
validImps = append(validImps, imp)
} else {
errs = append(errs, err)
}
}
if len(validImps) == 0 {
err := fmt.Errorf("No valid impressions for triplelift")
errs = append(errs, err)
return nil, errs
}
tlRequest.Imp = validImps
reqJSON, err := json.Marshal(tlRequest)
if err != nil {
errs = append(errs, err)
return nil, errs
}
headers := http.Header{}
headers.Add("Content-Type", "application/json;charset=utf-8")
headers.Add("Accept", "application/json")
ad := a.endpoint
reqs = append(reqs, &adapters.RequestData{
Method: "POST",
Uri: ad,
Body: reqJSON,
Headers: headers})
return reqs, errs
}
func getBidCount(bidResponse openrtb2.BidResponse) int {
c := 0
for _, sb := range bidResponse.SeatBid {
c = c + len(sb.Bid)
}
return c
}
func (a *TripleliftAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest *adapters.RequestData, response *adapters.ResponseData) (*adapters.BidderResponse, []error) {
if response.StatusCode == http.StatusNoContent {
return nil, nil
}
if response.StatusCode == http.StatusBadRequest {
return nil, []error{&errortypes.BadInput{
Message: fmt.Sprintf("Unexpected status code: %d. Run with request.debug = 1 for more info", response.StatusCode),
}}
}
if response.StatusCode != http.StatusOK {
return nil, []error{fmt.Errorf("Unexpected status code: %d. Run with request.debug = 1 for more info", response.StatusCode)}
}
var bidResp openrtb2.BidResponse
if err := json.Unmarshal(response.Body, &bidResp); err != nil {
return nil, []error{err}
}
var errs []error
count := getBidCount(bidResp)
bidResponse := adapters.NewBidderResponseWithBidsCapacity(count)
for _, sb := range bidResp.SeatBid {
for i := 0; i < len(sb.Bid); i++ {
bid := sb.Bid[i]
var bidExt TripleliftRespExt
if err := json.Unmarshal(bid.Ext, &bidExt); err != nil {
errs = append(errs, err)
} else {
bidType := getBidType(bidExt)
bidResponse.Bids = append(bidResponse.Bids, &adapters.TypedBid{
Bid: &bid,
BidType: bidType,
})
}
}
}
return bidResponse, errs
}
// Builder builds a new instance of the Triplelift adapter for the given bidder with the given config.
func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server config.Server) (adapters.Bidder, error) {
bidder := &TripleliftAdapter{
endpoint: config.Endpoint,
}
return bidder, nil
}