github.com/prebid/prebid-server@v0.275.0/adapters/seedingAlliance/seedingAlliance.go (about)

     1  package seedingAlliance
     2  
     3  import (
     4  	"encoding/json"
     5  	"fmt"
     6  	"net/http"
     7  	"strconv"
     8  	"strings"
     9  
    10  	"github.com/prebid/openrtb/v19/openrtb2"
    11  	"github.com/prebid/prebid-server/adapters"
    12  	"github.com/prebid/prebid-server/config"
    13  	"github.com/prebid/prebid-server/errortypes"
    14  	"github.com/prebid/prebid-server/openrtb_ext"
    15  )
    16  
    17  type adapter struct {
    18  	endpoint string
    19  }
    20  
    21  func Builder(_ openrtb_ext.BidderName, config config.Adapter, server config.Server) (adapters.Bidder, error) {
    22  	bidder := &adapter{
    23  		endpoint: config.Endpoint,
    24  	}
    25  	return bidder, nil
    26  }
    27  
    28  func (a *adapter) MakeRequests(request *openrtb2.BidRequest, extraRequestInfo *adapters.ExtraRequestInfo) ([]*adapters.RequestData, []error) {
    29  	for i := range request.Imp {
    30  		if err := addTagID(&request.Imp[i]); err != nil {
    31  			return nil, []error{err}
    32  		}
    33  	}
    34  
    35  	if !curExists(request.Cur, "EUR") {
    36  		request.Cur = append(request.Cur, "EUR")
    37  	}
    38  
    39  	requestJSON, err := json.Marshal(request)
    40  	if err != nil {
    41  		return nil, []error{err}
    42  	}
    43  
    44  	requestData := &adapters.RequestData{
    45  		Method: http.MethodPost,
    46  		Uri:    a.endpoint,
    47  		Body:   requestJSON,
    48  	}
    49  
    50  	return []*adapters.RequestData{requestData}, nil
    51  }
    52  
    53  func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.RequestData, responseData *adapters.ResponseData) (*adapters.BidderResponse, []error) {
    54  	if responseData.StatusCode == http.StatusNoContent {
    55  		return nil, nil
    56  	}
    57  
    58  	if responseData.StatusCode == http.StatusBadRequest {
    59  		err := &errortypes.BadInput{
    60  			Message: "Unexpected status code: 400. Bad request from publisher. Run with request.debug = 1 for more info.",
    61  		}
    62  		return nil, []error{err}
    63  	}
    64  
    65  	if responseData.StatusCode != http.StatusOK {
    66  		err := &errortypes.BadServerResponse{
    67  			Message: fmt.Sprintf("Unexpected status code: %d. Run with request.debug = 1 for more info.", responseData.StatusCode),
    68  		}
    69  		return nil, []error{err}
    70  	}
    71  
    72  	var response openrtb2.BidResponse
    73  	if err := json.Unmarshal(responseData.Body, &response); err != nil {
    74  		return nil, []error{err}
    75  	}
    76  
    77  	bidResponse := adapters.NewBidderResponseWithBidsCapacity(len(request.Imp))
    78  	bidResponse.Currency = response.Cur
    79  
    80  	var errs []error
    81  
    82  	for _, seatBid := range response.SeatBid {
    83  		for i := range seatBid.Bid {
    84  			resolvePriceMacro(&seatBid.Bid[i])
    85  
    86  			bidType, err := getMediaTypeForBid(seatBid.Bid[i].Ext)
    87  			if err != nil {
    88  				errs = append(errs, err)
    89  				continue
    90  			}
    91  
    92  			bidResponse.Bids = append(bidResponse.Bids, &adapters.TypedBid{
    93  				Bid:     &seatBid.Bid[i],
    94  				BidType: bidType,
    95  			})
    96  		}
    97  	}
    98  
    99  	return bidResponse, errs
   100  }
   101  
   102  func resolvePriceMacro(bid *openrtb2.Bid) {
   103  	price := strconv.FormatFloat(bid.Price, 'f', -1, 64)
   104  	bid.AdM = strings.Replace(bid.AdM, "${AUCTION_PRICE}", price, -1)
   105  }
   106  
   107  func getMediaTypeForBid(ext json.RawMessage) (openrtb_ext.BidType, error) {
   108  	var bidExt openrtb_ext.ExtBid
   109  
   110  	if err := json.Unmarshal(ext, &bidExt); err != nil {
   111  		return "", fmt.Errorf("could not unmarshal openrtb_ext.ExtBid: %w", err)
   112  	}
   113  
   114  	if bidExt.Prebid == nil {
   115  		return "", fmt.Errorf("bid.Ext.Prebid is empty")
   116  	}
   117  
   118  	return openrtb_ext.ParseBidType(string(bidExt.Prebid.Type))
   119  }
   120  
   121  func curExists(allowedCurrencies []string, newCurrency string) bool {
   122  	for i := range allowedCurrencies {
   123  		if allowedCurrencies[i] == newCurrency {
   124  			return true
   125  		}
   126  	}
   127  	return false
   128  }
   129  
   130  func addTagID(imp *openrtb2.Imp) error {
   131  	var ext adapters.ExtImpBidder
   132  	var extSA openrtb_ext.ImpExtSeedingAlliance
   133  
   134  	if err := json.Unmarshal(imp.Ext, &ext); err != nil {
   135  		return fmt.Errorf("could not unmarshal adapters.ExtImpBidder: %w", err)
   136  	}
   137  
   138  	if err := json.Unmarshal(ext.Bidder, &extSA); err != nil {
   139  		return fmt.Errorf("could not unmarshal openrtb_ext.ImpExtSeedingAlliance: %w", err)
   140  	}
   141  
   142  	imp.TagID = extSA.AdUnitID
   143  
   144  	return nil
   145  }