more than 8 articles will be dropped

outMsg.go

@@ -150,17 +150,17 @@ func musicMsgTemplate() string {
 }
 
 func buildNewsMsg(ToUserName, title, description string, articles []Article) (msg string) {
-	count := len(articles)
-	if count <= 0 {
-		log.Fatal("using empty article to build NewsMsg")
-		msg = ""
-		return
-	}
-
+	count := 0
 	items := []string{}
 	for _, a := range articles {
+		if count >= 8 {
+			err := errors.New("too many articles, only take first 8")
+			log.Fatal(err)
+			break
+		}
 		s := buildArticleItem(a)
 		items = append(items, s)
+		count++
 	}
 	strItems := strings.Join(items, "")