TheMediaGrid s2s adapter: add video support (prebid#1020)

* Add TheMediaGrid server adapter

* Add video support in TheMediaGrid s2s adapter

adapters/grid/grid.go

@@ -8,6 +8,7 @@ import (
 	"github.com/mxmCherry/openrtb"
 	"github.com/prebid/prebid-server/adapters"
 	"github.com/prebid/prebid-server/errortypes"
+	"github.com/prebid/prebid-server/openrtb_ext"
 )
 
 type GridAdapter struct {
@@ -62,9 +63,14 @@ func (a *GridAdapter) MakeBids(internalRequest *openrtb.BidRequest, externalRequ
 
 	for _, sb := range bidResp.SeatBid {
 		for i := range sb.Bid {
+			bidType, err := getMediaTypeForImp(sb.Bid[i].ImpID, internalRequest.Imp)
+			if err != nil {
+				return nil, []error{err}
+			}
+
 			bidResponse.Bids = append(bidResponse.Bids, &adapters.TypedBid{
 				Bid:     &sb.Bid[i],
-				BidType: "banner",
+				BidType: bidType,
 			})
 		}
 	}
@@ -78,3 +84,26 @@ func NewGridBidder(endpoint string) *GridAdapter {
 		endpoint: endpoint,
 	}
 }
+
+func getMediaTypeForImp(impID string, imps []openrtb.Imp) (openrtb_ext.BidType, error) {
+	for _, imp := range imps {
+		if imp.ID == impID {
+			if imp.Banner != nil {
+				return openrtb_ext.BidTypeBanner, nil
+			}
+
+			if imp.Video != nil {
+				return openrtb_ext.BidTypeVideo, nil
+			}
+
+			return "", &errortypes.BadServerResponse{
+				Message: fmt.Sprintf("Unknown impression type for ID: \"%s\"", impID),
+			}
+		}
+	}
+
+	// This shouldnt happen. Lets handle it just incase by returning an error.
+	return "", &errortypes.BadServerResponse{
+		Message: fmt.Sprintf("Failed to find impression for ID: \"%s\"", impID),
+	}
+}

adapters/grid/gridtest/exemplary/simple-video.json

@@ -0,0 +1,83 @@
+{
+    "mockBidRequest": {
+        "id": "test-request-id",
+        "site": {
+            "page": "https://good.site/url"
+        },
+        "imp": [{
+            "id": "test-imp-id",
+            "video": {
+                "mimes": ["video/mp4"],
+                "protocols": [2, 5],
+                "w": 300,
+                "h": 250
+            },
+            "ext": {
+                "bidder": {}
+            }
+        }]
+    },
+
+    "httpCalls": [{
+        "expectedRequest": {
+            "uri": "http://localhost/prebid",
+            "body": {
+                "id": "test-request-id",
+                "site": {
+                    "page": "https://good.site/url"
+                },
+                "imp": [{
+                    "id": "test-imp-id",
+                    "video": {
+                        "mimes": ["video/mp4"],
+                        "protocols": [2, 5],
+                        "w": 300,
+                        "h": 250
+                    },
+                    "ext": {
+                        "bidder": {}
+                    }
+                }]
+            }
+        },
+        "mockResponse": {
+            "status": 200,
+            "body": {
+                "id": "test-request-id",
+                "seatbid": [{
+                    "seat": "grid",
+                    "bid": [{
+                        "id": "randomid",
+                        "impid": "test-imp-id",
+                        "price": 0.500000,
+                        "adid": "12345678",
+                        "adm": "some-test-ad-vast",
+                        "cid": "987",
+                        "crid": "12345678",
+                        "h": 250,
+                        "w": 300
+                    }]
+                }],
+                "cur": "USD"
+            }
+        }
+    }],
+
+    "expectedBidResponses": [{
+        "currency": "USD",
+        "bids": [{
+            "bid": {
+                "id": "randomid",
+                "impid": "test-imp-id",
+                "price": 0.5,
+                "adm": "some-test-ad-vast",
+                "adid": "12345678",
+                "cid": "987",
+                "crid": "12345678",
+                "w": 300,
+                "h": 250
+            },
+            "type": "video"
+        }]
+    }]
+}

static/bidder-info/grid.yaml

@@ -4,3 +4,4 @@ capabilities:
   site:
     mediaTypes:
       - banner
+      - video