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Country code redirect

Redirect a response based on the country code in the header of a visitor.

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

export default {
	async fetch(request) {
		/**
		 * A map of the URLs to redirect to
		 * @param {Object} countryMap
		 */
		const countryMap = {
			US: "https://example.com/us",
			EU: "https://example.com/eu",
		};

		// Use the cf object to obtain the country of the request
		// more on the cf object: https://developers.cloudflare.com/workers/runtime-apis/request#incomingrequestcfproperties
		const country = request.cf.country;

		if (country != null && country in countryMap) {
			const url = countryMap[country];
			// Remove this logging statement from your final output.
			console.log(
				`Based on ${country}-based request, your user would go to ${url}.`,
			);
			return Response.redirect(url);
		} else {
			return fetch("https://example.com", request);
		}
	},
};
export default {
	async fetch(request): Promise<Response> {
		/**
		 * A map of the URLs to redirect to
		 * @param {Object} countryMap
		 */
		const countryMap = {
			US: "https://example.com/us",
			EU: "https://example.com/eu",
		};

		// Use the cf object to obtain the country of the request
		// more on the cf object: https://developers.cloudflare.com/workers/runtime-apis/request#incomingrequestcfproperties
		const country = request.cf.country;

		if (country != null && country in countryMap) {
			const url = countryMap[country];
			return Response.redirect(url);
		} else {
			return fetch(request);
		}
	},
} satisfies ExportedHandler;
from workers import WorkerEntrypoint, Response, fetch

class Default(WorkerEntrypoint):
    async def fetch(self, request):
        countries = {
            "US": "https://example.com/us",
            "EU": "https://example.com/eu",
        }

        # Use the cf object to obtain the country of the request
        # more on the cf object: https://developers.cloudflare.com/workers/runtime-apis/request#incomingrequestcfproperties
        country = request.cf.country

        if country and country in countries:
            url = countries[country]
            return Response.redirect(url)

        return fetch("https://example.com", request)
import { Hono } from 'hono';

// Define the RequestWithCf interface to add Cloudflare-specific properties
interface RequestWithCf extends Request {
  cf: {
    country: string;
    // Other CF properties can be added as needed
  };
}

const app = new Hono();

app.get('*', async (c) => {
  /**
   * A map of the URLs to redirect to
   */
  const countryMap: Record<string, string> = {
    US: "https://example.com/us",
    EU: "https://example.com/eu",
  };

  // Cast the raw request to include Cloudflare-specific properties
  const request = c.req.raw as RequestWithCf;

  // Use the cf object to obtain the country of the request
  // more on the cf object: https://developers.cloudflare.com/workers/runtime-apis/request#incomingrequestcfproperties
  const country = request.cf.country;

  if (country != null && country in countryMap) {
    const url = countryMap[country];
    // Redirect using Hono's redirect helper
    return c.redirect(url);
  } else {
    // Default fallback
    return fetch("https://example.com", request);
  }
});

export default app;