diff --git a/lib/http.util.ts b/lib/http.util.ts
new file mode 100644
index 0000000..77b0cf8
--- /dev/null
+++ b/lib/http.util.ts
@@ -0,0 +1,10 @@
+import type { AxiosError } from 'axios';
+import { isNetworkOrIdempotentRequestError } from 'axios-retry';
+
+export function isGatewayError(error: AxiosError): boolean {
+  return !!error.response && error.response.status >= 502 && error.response.status <= 504;
+}
+
+export function isNetworkOrIdempotentRequestOrGatewayError(error: AxiosError): boolean {
+  return isNetworkOrIdempotentRequestError(error) || isGatewayError(error);
+}