@composite-fetcher/with-retries/dist/index.js

A fetcher core plugin to handle and retry failed requests

// src/withRetries.ts
import {
  BasePlugin
} from "@composite-fetcher/core";
import fetch from "isomorphic-fetch";
var withRetriesPlugin = class extends BasePlugin {
  defaultMaxRetries;
  constructor(defaultMaxRetries = 3) {
    super();
    this.defaultMaxRetries = defaultMaxRetries;
  }
  async retryOperation(promiseFn, onSuccess, onFailure, attempt = 0, retries = 0) {
    try {
      const result = await promiseFn();
      if (result instanceof Response && !result.ok) {
        throw new Error(`HTTP error: ${result.status}`);
      }
      return onSuccess(result);
    } catch (err) {
      if (attempt < retries - 1) {
        return await this.retryOperation(
          promiseFn,
          onSuccess,
          onFailure,
          attempt + 1,
          retries
        );
      }
      console.error(`Failed after ${retries} attempts`, err);
      onFailure(err);
    }
  }
  async onPostRequest(context) {
    if (!context.response.ok && !context.originalRequest.headers.has("x-fetcher-no-retry")) {
      let retries = this.defaultMaxRetries;
      if (context.originalRequest.headers.has("x-fetcher-retry-times")) {
        retries = parseInt(
          context.originalRequest.headers.get("x-fetcher-retry-times"),
          10
        );
      }
      const response = await this.retryOperation(
        async () => fetch(context.originalRequest),
        (res) => res,
        (error) => error,
        0,
        retries
      );
      return response;
    }
  }
};
export {
  withRetriesPlugin as withRetries
};