---
title: Aggregate requests
description: Send two GET request to two urls and aggregates the responses into one response.
image: https://edgetunnel-b2h.pages.dev/dev-products-preview.png
---

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# Aggregate requests

Send two GET request to two urls and aggregates the responses into one response.

If you want to get started quickly, click on the button below.

[![Deploy to Cloudflare](https://deploy.workers.cloudflare.com/button)](https://deploy.workers.cloudflare.com/?url=https://github.com/cloudflare/docs-examples/tree/main/workers/aggregate-requests)

This creates a repository in your GitHub account and deploys the application to Cloudflare Workers.

* [  JavaScript ](#tab-panel-12439)
* [  TypeScript ](#tab-panel-12440)
* [  Hono ](#tab-panel-12441)
* [  Python ](#tab-panel-12442)

**JavaScript**

```js
export default {
  async fetch(request) {
    // someHost is set up to return JSON responses
    const someHost = "https://jsonplaceholder.typicode.com";
    const url1 = someHost + "/todos/1";
    const url2 = someHost + "/todos/2";


    const responses = await Promise.all([fetch(url1), fetch(url2)]);
    const results = await Promise.all(responses.map((r) => r.json()));


    const options = {
      headers: { "content-type": "application/json;charset=UTF-8" },
    };
    return new Response(JSON.stringify(results), options);
  },
};
```

**TypeScript**

```ts
export default {
  async fetch(request) {
    // someHost is set up to return JSON responses
    const someHost = "https://jsonplaceholder.typicode.com";
    const url1 = someHost + "/todos/1";
    const url2 = someHost + "/todos/2";


    const responses = await Promise.all([fetch(url1), fetch(url2)]);
    const results = await Promise.all(responses.map((r) => r.json()));


    const options = {
      headers: { "content-type": "application/json;charset=UTF-8" },
    };
    return new Response(JSON.stringify(results), options);
  },
} satisfies ExportedHandler;
```

**TypeScript**

```ts
import { Hono } from "hono";


const app = new Hono();


app.get("*", async (c) => {
  // someHost is set up to return JSON responses
  const someHost = "https://jsonplaceholder.typicode.com";
  const url1 = someHost + "/todos/1";
  const url2 = someHost + "/todos/2";


  // Fetch both URLs concurrently
  const responses = await Promise.all([fetch(url1), fetch(url2)]);


  // Parse JSON responses concurrently
  const results = await Promise.all(responses.map((r) => r.json()));


  // Return aggregated results
  return c.json(results);
});


export default app;
```

**Python**

```py
from workers import Response, fetch, WorkerEntrypoint
import asyncio
import json


class Default(WorkerEntrypoint):
  async def fetch(self, request):
    # some_host is set up to return JSON responses
    some_host = "https://jsonplaceholder.typicode.com"
    url1 = some_host + "/todos/1"
    url2 = some_host + "/todos/2"


    responses = await asyncio.gather(fetch(url1), fetch(url2))
    results = await asyncio.gather(*(r.json() for r in responses))


    headers = {"content-type": "application/json;charset=UTF-8"}
    return Response.json(results, headers=headers)
```

```json
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{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/directory/","name":"Directory"}},{"@type":"ListItem","position":2,"item":{"@id":"/workers/","name":"Workers"}},{"@type":"ListItem","position":3,"item":{"@id":"/workers/examples/","name":"Examples"}},{"@type":"ListItem","position":4,"item":{"@id":"/workers/examples/aggregate-requests/","name":"Aggregate requests"}}]}
```