feat: retry interval

src/fetch.ts

@@ -149,10 +149,18 @@ export const betterFetch = async <
 			await onError(errorContext);
 		}
 	}
-	if (options?.retry) {
+	if (options?.retry && options.retry.count > 0) {
+		if (options.retry.interval) {
+			await new Promise((resolve) =>
+				setTimeout(resolve, options.retry?.interval),
+			);
+		}
 		return await betterFetch(url, {
 			...options,
-			retry: options.retry - 1,
+			retry: {
+				count: options.retry.count - 1,
+				interval: options.retry.interval,
+			},
 		});
 	}
 

src/test/fetch.test.ts

@@ -155,7 +155,10 @@ describe("fetch", () => {
 	it("should retry on error", async () => {
 		let count = 0;
 		await betterFetch(getURL("error"), {
-			retry: 3,
+			retry: {
+				count: 3,
+				interval: 0,
+			},
 			onError() {
 				count++;
 			},
@@ -169,7 +172,9 @@ describe("fetch", () => {
 			controller.abort();
 			const response = await betterFetch("", {
 				baseURL: getURL("ok"),
-				retry: 3,
+				retry: {
+					count: 3,
+				},
 				signal: controller.signal,
 			});
 		}

src/types.ts

@@ -34,7 +34,7 @@ export type BetterFetchOption<
 		FetchHooks & {
 			/**
 			 * a timeout that will be used to abort the
-			 * request
+			 * request. Should be in milliseconds.
 			 */
 			timeout?: number;
 			/**
@@ -43,7 +43,7 @@ export type BetterFetchOption<
 			customFetchImpl?: FetchEsque;
 			/**
 			 * Better fetch plugins
-			 * @see https://better-fetch.vercel.app/plugins
+			 * @see https://better-fetch.vercel.app/docs/plugins
 			 */
 			plugins?: BetterFetchPlugin[];
 			/**
@@ -85,13 +85,19 @@ export type BetterFetchOption<
 			 */
 			duplex?: "full" | "half";
 			/**
-			 * JSON parser
+			 * Custom JSON parser
 			 */
 			jsonParser?: <T>(text: string) => Promise<T | undefined>;
 			/**
 			 * Retry count
 			 */
-			retry?: number;
+			retry?: {
+				count: number;
+				/**
+				 * Retry interval in milliseconds
+				 */
+				interval?: number;
+			};
 			/**
 			 * HTTP method
 			 */