packages/api/src/lib/client-ip.ts

import type { Context as HonoContext } from "hono";

export function getClientIp(context: HonoContext): string | undefined {
  const headers = context.req.raw.headers;
  const cfIp = headers.get("cf-connecting-ip");
  if (cfIp) return cfIp.trim();
  const forwarded = headers.get("x-forwarded-for");
  if (forwarded) {
    const firstIp = forwarded.split(",")[0]?.trim();
    if (firstIp) return firstIp;
  }
  const realIp = headers.get("x-real-ip");
  if (realIp) return realIp.trim();
  return undefined;
}