---
title: Bulk origin override
description: Resolve requests to your domain to a set of proxy third-party origin URLs.
image: https://developers.cloudflare.com/dev-products-preview.png
---

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# Bulk origin override

Resolve requests to your domain to a set of proxy third-party origin URLs.

* [  JavaScript ](#tab-panel-11924)
* [  TypeScript ](#tab-panel-11925)
* [  Hono ](#tab-panel-11926)
* [  Python ](#tab-panel-11927)

JavaScript

```
export default {  async fetch(request) {    /**     * An object with different URLs to fetch     * @param {Object} ORIGINS     */    const ORIGINS = {      "starwarsapi.yourdomain.com": "swapi.dev",      "google.yourdomain.com": "www.google.com",    };
    const url = new URL(request.url);
    // Check if incoming hostname is a key in the ORIGINS object    if (url.hostname in ORIGINS) {      const target = ORIGINS[url.hostname];      url.hostname = target;      // If it is, proxy request to that third party origin      return fetch(url.toString(), request);    }    // Otherwise, process request as normal    return fetch(request);  },};
```

TypeScript

```
export default {  async fetch(request): Promise<Response> {    /**     * An object with different URLs to fetch     * @param {Object} ORIGINS     */    const ORIGINS = {      "starwarsapi.yourdomain.com": "swapi.dev",      "google.yourdomain.com": "www.google.com",    };
    const url = new URL(request.url);
    // Check if incoming hostname is a key in the ORIGINS object    if (url.hostname in ORIGINS) {      const target = ORIGINS[url.hostname];      url.hostname = target;      // If it is, proxy request to that third party origin      return fetch(url.toString(), request);    }    // Otherwise, process request as normal    return fetch(request);  },} satisfies ExportedHandler;
```

TypeScript

```
import { Hono } from "hono";import { proxy } from "hono/proxy";
// An object with different URLs to fetchconst ORIGINS: Record<string, string> = {  "starwarsapi.yourdomain.com": "swapi.dev",  "google.yourdomain.com": "www.google.com",};
const app = new Hono();
app.all("*", async (c) => {  const url = new URL(c.req.url);
  // Check if incoming hostname is a key in the ORIGINS object  if (url.hostname in ORIGINS) {    const target = ORIGINS[url.hostname];    url.hostname = target;
    // If it is, proxy request to that third party origin    return proxy(url, c.req.raw);  }
  // Otherwise, process request as normal  return proxy(c.req.raw);});
export default app;
```

Python

```
from workers import WorkerEntrypointfrom js import fetch, URL
class Default(WorkerEntrypoint):    async def fetch(self, request):        # A dict with different URLs to fetch        ORIGINS = {          "starwarsapi.yourdomain.com": "swapi.dev",          "google.yourdomain.com": "www.google.com",        }
        url = URL.new(request.url)
        # Check if incoming hostname is a key in the ORIGINS object        if url.hostname in ORIGINS:            url.hostname = ORIGINS[url.hostname]            # If it is, proxy request to that third party origin            return fetch(url.toString(), request)
        # Otherwise, process request as normal        return fetch(request)
```

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```