feat: support customizable retryStatusCodes (resolves #109)

README.md

@@ -115,7 +115,7 @@ await ofetch("/url", { ignoreResponseError: true });
 - `503` - Service Unavailable
 - `504` - Gateway Timeout
 
-You can specifcy amount of retry and delay between them using `retry` and `retryDelay` options.
+You can specifcy amount of retry and delay between them using `retry` and `retryDelay` options and also pass a custom array of codes using `retryStatusCodes` option.
 
 Default for `retry` is `1` retry, except for `POST`, `PUT`, `PATCH` and `DELETE` methods where `ofetch` does not retry.
 

src/fetch.ts

@@ -44,11 +44,15 @@ export interface FetchOptions<R extends ResponseType = ResponseType>
   query?: SearchParameters;
   parseResponse?: (responseText: string) => any;
   responseType?: R;
-  retry?: number | false;
+
   /** timeout in milliseconds */
   timeout?: number;
+
+  retry?: number | false;
   /** Delay between retries in milliseconds. */
   retryDelay?: number;
+  /** Default is [408, 409, 425, 429, 500, 502, 503, 504] */
+  retryStatusCodes?: number[];
 
   onRequest?(context: FetchContext): Promise<void> | void;
   onRequestError?(
@@ -113,7 +117,12 @@ export function createFetch(globalOptions: CreateFetchOptions = {}): $Fetch {
       }
 
       const responseCode = (context.response && context.response.status) || 500;
-      if (retries > 0 && retryStatusCodes.has(responseCode)) {
+      if (
+        retries > 0 &&
+        (Array.isArray(context.options.retryStatusCodes)
+          ? context.options.retryStatusCodes.includes(responseCode)
+          : retryStatusCodes.has(responseCode))
+      ) {
         const retryDelay = context.options.retryDelay || 0;
         if (retryDelay > 0) {
           await new Promise((resolve) => setTimeout(resolve, retryDelay));