server api token이 없을 경우 새로 만들어 줌

core/api.go

@@ -421,6 +421,12 @@ func (caller apiCaller) serviceAPI(w http.ResponseWriter, r *http.Request) error
 			return nil
 		}
 
+		if len(service.ServerApiTokens) == 0 {
+			service.ServerApiTokens = []primitive.ObjectID{
+				primitive.NewObjectID(),
+			}
+		}
+
 		filter := bson.M{"_id": service.Id}
 		if len(service.ServiceCode) == 0 {
 			service.ServiceCode = hex.EncodeToString(service.Id[6:])