Bulk origin override

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

Last updated Apr 23, 2026

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);
    },
};

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;

import { Hono } from "hono";
import { proxy } from "hono/proxy";

// An object with different URLs to fetch
const 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;

from workers import WorkerEntrypoint
from 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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description: Redirect requests to certain URLs based on a mapped object to the request's URL. title: Bulk redirects image: https://developers.cloudflare.com/workers/examples/bulk-redirects/og.png?v=7c90f475ac5711f2

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