github.com/prebid/prebid-server/v2@v2.18.0/adapters/definemedia/definemedia.go (about)

     1  package definemedia
     2  
     3  import (
     4  	"encoding/json"
     5  	"fmt"
     6  	"net/http"
     7  
     8  	"github.com/prebid/openrtb/v20/openrtb2"
     9  	"github.com/prebid/prebid-server/v2/adapters"
    10  	"github.com/prebid/prebid-server/v2/config"
    11  	"github.com/prebid/prebid-server/v2/errortypes"
    12  	"github.com/prebid/prebid-server/v2/openrtb_ext"
    13  )
    14  
    15  type adapter struct {
    16  	endpoint string
    17  }
    18  
    19  // Builder builds a new instance of the Foo adapter for the given bidder with the given config.
    20  func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server config.Server) (adapters.Bidder, error) {
    21  	bidder := &adapter{
    22  		endpoint: config.Endpoint,
    23  	}
    24  	return bidder, nil
    25  }
    26  
    27  // MakeRequests makes the HTTP requests which should be made to fetch bids.
    28  func (a *adapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.ExtraRequestInfo) ([]*adapters.RequestData, []error) {
    29  	var errors []error
    30  	requestJSON, err := json.Marshal(request)
    31  	if err != nil {
    32  		errors = append(errors, err)
    33  		return nil, errors
    34  	}
    35  
    36  	requestData := &adapters.RequestData{
    37  		Method: "POST",
    38  		Uri:    a.endpoint,
    39  		Body:   requestJSON,
    40  		ImpIDs: openrtb_ext.GetImpIDs(request.Imp),
    41  	}
    42  
    43  	return []*adapters.RequestData{requestData}, errors
    44  
    45  }
    46  
    47  func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest *adapters.RequestData, response *adapters.ResponseData) (*adapters.BidderResponse, []error) {
    48  	if response.StatusCode == http.StatusNoContent {
    49  		return nil, nil
    50  	}
    51  
    52  	if response.StatusCode == http.StatusBadRequest {
    53  		return nil, []error{&errortypes.BadInput{
    54  			Message: fmt.Sprintf("Unexpected status code: %d. Run with request.debug = 1 for more info", response.StatusCode),
    55  		}}
    56  	}
    57  
    58  	if response.StatusCode != http.StatusOK {
    59  		return nil, []error{&errortypes.BadServerResponse{
    60  			Message: fmt.Sprintf("Unexpected status code: %d. Run with request.debug = 1 for more info", response.StatusCode),
    61  		}}
    62  	}
    63  
    64  	var bidResp openrtb2.BidResponse
    65  	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
    66  		return nil, []error{err}
    67  	}
    68  
    69  	bidsCapacity := 1
    70  	if len(bidResp.SeatBid) > 0 {
    71  		bidsCapacity = len(bidResp.SeatBid[0].Bid)
    72  	}
    73  	bidResponse := adapters.NewBidderResponseWithBidsCapacity(bidsCapacity)
    74  	var errors []error
    75  	for _, sb := range bidResp.SeatBid {
    76  		for i, bid := range sb.Bid {
    77  			bidType, err := getMediaTypeForBid(bid)
    78  			if err != nil {
    79  				errors = append(errors, err)
    80  				continue
    81  			}
    82  			bidResponse.Bids = append(bidResponse.Bids, &adapters.TypedBid{
    83  				Bid:     &sb.Bid[i],
    84  				BidType: bidType,
    85  			})
    86  
    87  		}
    88  	}
    89  
    90  	return bidResponse, errors
    91  }
    92  
    93  func getMediaTypeForBid(bid openrtb2.Bid) (openrtb_ext.BidType, error) {
    94  	if bid.Ext != nil {
    95  		var bidExt openrtb_ext.ExtBid
    96  		err := json.Unmarshal(bid.Ext, &bidExt)
    97  		if err == nil && bidExt.Prebid != nil {
    98  			if (bidExt.Prebid.Type == openrtb_ext.BidTypeBanner) || (bidExt.Prebid.Type == openrtb_ext.BidTypeNative) {
    99  				return openrtb_ext.ParseBidType(string(bidExt.Prebid.Type))
   100  			}
   101  			return "", &errortypes.BadServerResponse{
   102  				Message: fmt.Sprintf("Invalid mediatype in the impression"),
   103  			}
   104  		}
   105  	}
   106  
   107  	return "", &errortypes.BadServerResponse{
   108  		Message: fmt.Sprintf("Failed to parse impression \"%s\" mediatype", bid.ImpID),
   109  	}
   110  }