---
description: Send two GET request to two urls and aggregates the responses into one response.
title: Aggregate requests
image: https://developers.cloudflare.com/og-docs.png
---

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# Aggregate requests

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

Last updated Aug 25, 2026|Copy as Markdown|[View as Markdown](https://4f1c5cd2.previews.developers.cloudflare.com/workers/examples/aggregate-requests/index.md)|[Agent setup](https://4f1c5cd2.previews.developers.cloudflare.com/agent-setup/)

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.

```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);
	},
};
```

```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;
```

```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;
```

```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)
```

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```json
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```