ds-querier: return 400 when no code is present (#105633)

pkg/apis/query/v0alpha1/query.go

@@ -31,7 +31,7 @@ type QueryDataResponse struct {
 // GetResponseCode return the right status code for the response by checking the responses.
 func GetResponseCode(rsp *backend.QueryDataResponse) int {
 	if rsp == nil {
-		return http.StatusTeapot // rsp is nil, so we return a teapot
+		return http.StatusBadRequest // rsp is nil, so we return a 400
 	}
 	for _, res := range rsp.Responses {
 		if res.Error != nil && res.Status != 0 {
@@ -39,7 +39,7 @@ func GetResponseCode(rsp *backend.QueryDataResponse) int {
 		}
 
 		if res.Error != nil {
-			return http.StatusTeapot // Status is nil but we have an error, so we return a teapot
+			return http.StatusBadRequest // Status is nil but we have an error, so we return a 400
 		}
 	}
 	return http.StatusOK