cf-workers-query/src/lib/durable-object-deduper.js

Automatically cache and revalidate data in Cloudflare Workers. Using the Cache API and Execution Context

import {
  __name
} from "../chunk-SHUYVCID.js";

// src/lib/durable-object-deduper.ts
import { DurableObject } from "cloudflare:workers";
var QueryDeduper = class extends DurableObject {
  static {
    __name(this, "QueryDeduper");
  }
  inflight = /* @__PURE__ */ new Map();
  async dedupe(request) {
    const key = new URL(request.url).searchParams.get("key");
    if (!key) {
      return new Response('Missing "key" query parameter', {
        status: 400
      });
    }
    const existing = this.inflight.get(key);
    if (existing) return existing;
    const promise = this.executeQuery(request).finally(() => {
      this.inflight.delete(key);
    });
    this.inflight.set(key, promise);
    return promise;
  }
  async executeQuery(request) {
    const body = await request.json();
    return fetch(body.url, body.init);
  }
};
export {
  QueryDeduper
};