Fix JSON tag, added benchmark

Author: dim

bench_test.go

@@ -21,3 +21,22 @@ func BenchmarkBidRequest_Unmarshal(b *testing.B) {
 		}
 	}
 }
+
+func BenchmarkBidRequest_Marshal(b *testing.B) {
+	data, err := ioutil.ReadFile(filepath.Join("testdata", "breq.video.json"))
+	if err != nil {
+		b.Fatal(err.Error())
+	}
+
+	var req *BidRequest
+	if err := json.Unmarshal(data, &req); err != nil {
+		b.Fatal(err.Error())
+	}
+
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		if _, err := json.Marshal(req); err != nil {
+			b.Fatal(err.Error())
+		}
+	}
+}

content.go

@@ -15,7 +15,7 @@ type Content struct {
 	Season             string          `json:"season,omitempty"`             // Content season.
 	Producer           *Producer       `json:"producer,omitempty"`           // The producer.
 	URL                string          `json:"url,omitempty"`                // URL of the content, for buy-side contextualization or review.
-	Cat                []string        `json:"url,omitempty"`                // Array of IAB content categories that describe the content.
+	Cat                []string        `json:"cat,omitempty"`                // Array of IAB content categories that describe the content.
 	VideoQuality       int             `json:"videoquality,omitempty"`       // Video quality per IAB's classification.
 	Context            int             `json:"context,omitempty"`            // Type of content (game, video, text, etc.).
 	ContentRating      string          `json:"contentrating,omitempty"`      // Content rating (e.g., MPAA).