Module Server/Get Client IP Address

This function receives a Request or Headers objects and will try to get the IP address of the client (the user) who originated the request.

import { getClientIPAddress } from "remix-utils/get-client-ip-address";

export async function loader({ request }: Route.LoaderArgs) {
	// using the request
	let ipAddress = getClientIPAddress(request);
	// or using the headers
	let ipAddress = getClientIPAddress(request.headers);
}
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If it can't find he IP address the return value will be null. Remember to check if it was able to find it before using it.

The function uses the following list of headers, in order of preference:

• X-Client-IP
• X-Forwarded-For
• HTTP-X-Forwarded-For
• Fly-Client-IP
• CF-Connecting-IP
• Fastly-Client-Ip
• True-Client-Ip
• X-Real-IP
• X-Cluster-Client-IP
• X-Forwarded
• Forwarded-For
• Forwarded
• DO-Connecting-IP
• oxygen-buyer-ip

When a header is found that contains a valid IP address, it will return without checking the other headers.