How to get the client location and ip in a Cloudflare Worker
Posted on August 30, 2024
To get the client location and IP address in a Cloudflare Worker, you can use the cf object and the cf-connecting-ip header. Here's how you can do it:
Extract the cf object from the incoming request to access Cloudflare-specific data, such as the client's location:
const { cf } = request || {};
Get the client’s country and city using the cf object:
const { country, city } = cf || {};
Retrieve the client’s IP address from the request headers:
const ip = request.headers.get('cf-connecting-ip');
Example:
addEventListener('fetch', event => {
event.respondWith(handleRequest(event.request));
})
async function handleRequest(request) {
// Extract Cloudflare specific information
const { cf } = request || {};
const { country, city } = cf || {};
const ip = request.headers.get('cf-connecting-ip');
// Response with the client information
return new Response(`IP: ${ip}, Country: ${country}, City: ${city}`, {
headers: { 'content-type': 'text/plain' },
});
}
This simple worker script will respond with the client's IP address, country, and city when the worker is invoked.