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

     1  package adelement
     2  
     3  import (
     4  	"encoding/json"
     5  	"fmt"
     6  	"text/template"
     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/macros"
    13  	"github.com/prebid/prebid-server/v2/openrtb_ext"
    14  )
    15  
    16  type adapter struct {
    17  	endpoint *template.Template
    18  }
    19  
    20  // Builder builds a new instance of the Adelement adapter for the given bidder with the given config.
    21  func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server config.Server) (adapters.Bidder, error) {
    22  	template, err := template.New("endpointTemplate").Parse(config.Endpoint)
    23  	if err != nil {
    24  		return nil, fmt.Errorf("unable to parse endpoint url template: %v", err)
    25  	}
    26  
    27  	bidder := &adapter{
    28  		endpoint: template,
    29  	}
    30  	return bidder, nil
    31  }
    32  
    33  func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapters.ExtraRequestInfo) ([]*adapters.RequestData, []error) {
    34  	adelementExt, err := getImpressionExt(&request.Imp[0])
    35  	if err != nil {
    36  		return nil, []error{err}
    37  	}
    38  
    39  	url, err := a.buildEndpointURL(adelementExt)
    40  	if err != nil {
    41  		return nil, []error{err}
    42  	}
    43  
    44  	requestJSON, err := json.Marshal(request)
    45  	if err != nil {
    46  		return nil, []error{err}
    47  	}
    48  
    49  	requestData := &adapters.RequestData{
    50  		Method: "POST",
    51  		Uri:    url,
    52  		Body:   requestJSON,
    53  		ImpIDs: openrtb_ext.GetImpIDs(request.Imp),
    54  	}
    55  
    56  	return []*adapters.RequestData{requestData}, nil
    57  }
    58  
    59  func getImpressionExt(imp *openrtb2.Imp) (*openrtb_ext.ExtAdelement, error) {
    60  	var bidderExt adapters.ExtImpBidder
    61  	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
    62  		return nil, &errortypes.BadInput{
    63  			Message: "ext.bidder not provided",
    64  		}
    65  	}
    66  	var adelementExt openrtb_ext.ExtAdelement
    67  	if err := json.Unmarshal(bidderExt.Bidder, &adelementExt); err != nil {
    68  		return nil, &errortypes.BadInput{
    69  			Message: "ext.bidder not provided",
    70  		}
    71  	}
    72  	imp.Ext = nil
    73  	return &adelementExt, nil
    74  }
    75  
    76  func (a *adapter) buildEndpointURL(params *openrtb_ext.ExtAdelement) (string, error) {
    77  	endpointParams := macros.EndpointTemplateParams{SupplyId: params.SupplyId}
    78  	return macros.ResolveMacros(a.endpoint, endpointParams)
    79  }
    80  
    81  func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.RequestData, responseData *adapters.ResponseData) (*adapters.BidderResponse, []error) {
    82  	if adapters.IsResponseStatusCodeNoContent(responseData) {
    83  		return nil, nil
    84  	}
    85  
    86  	if err := adapters.CheckResponseStatusCodeForErrors(responseData); err != nil {
    87  		return nil, []error{err}
    88  	}
    89  
    90  	var response openrtb2.BidResponse
    91  	if err := json.Unmarshal(responseData.Body, &response); err != nil {
    92  		return nil, []error{&errortypes.BadServerResponse{
    93  			Message: "Bad Server Response",
    94  		}}
    95  	}
    96  
    97  	if len(response.SeatBid) == 0 {
    98  		return nil, []error{&errortypes.BadServerResponse{
    99  			Message: "Empty SeatBid array",
   100  		}}
   101  	}
   102  
   103  	var bidErrs []error
   104  	bidResponse := adapters.NewBidderResponseWithBidsCapacity(len(request.Imp))
   105  	bidResponse.Currency = response.Cur
   106  	for _, seatBid := range response.SeatBid {
   107  		for i := range seatBid.Bid {
   108  			bid := seatBid.Bid[i]
   109  			bidType, err := getBidType(bid)
   110  			if err != nil {
   111  				// could not determinate media type, append an error and continue with the next bid.
   112  				bidErrs = append(bidErrs, err)
   113  				continue
   114  			}
   115  			bidResponse.Bids = append(bidResponse.Bids, &adapters.TypedBid{
   116  				Bid:     &bid,
   117  				BidType: bidType,
   118  			})
   119  		}
   120  	}
   121  	return bidResponse, bidErrs
   122  }
   123  
   124  func getBidType(bid openrtb2.Bid) (openrtb_ext.BidType, error) {
   125  	// determinate media type by bid response field mtype
   126  	switch bid.MType {
   127  	case openrtb2.MarkupBanner:
   128  		return openrtb_ext.BidTypeBanner, nil
   129  	case openrtb2.MarkupVideo:
   130  		return openrtb_ext.BidTypeVideo, nil
   131  	case openrtb2.MarkupAudio:
   132  		return openrtb_ext.BidTypeAudio, nil
   133  	case openrtb2.MarkupNative:
   134  		return openrtb_ext.BidTypeNative, nil
   135  	}
   136  
   137  	return "", &errortypes.BadInput{
   138  		Message: fmt.Sprintf("Could not define media type for impression: %s", bid.ImpID),
   139  	}
   140  }