Can't get userId to filter

Here is the complete code if you need :

import { getAuthToken } from "./get-token";
import { getStrapiURL } from "@/lib/utils";
import qs from "qs";

export async function getFamilyMembersLoader() {
  const baseUrl = getStrapiURL();
  const authToken = await getAuthToken();
  if (!authToken) return { ok: false, data: null, error: "No auth token" };

  try {
    const userResponse = await fetch(`${baseUrl}/api/users/me`, {
      headers: {
        Authorization: `Bearer ${authToken}`,
      },
    });
    const userData = await userResponse.json();
    const userId = userData.id;

    console.log("User ID:", userId);

    const query = qs.stringify(
      {
        filters: {
          familyOwner: {
            $eq: userId,
          },
        },
        populate: "*",
      },
      { encodeValuesOnly: true }
    );

    const url = new URL(`${baseUrl}/api/families?${query}`);

    const response = await fetch(url.href, {
      method: "GET",
      headers: {
        "Content-Type": "application/json",
        Authorization: `Bearer ${authToken}`,
      },
      cache: "no-cache",
    });
    const data = await response.json();
    if (data.error) return { ok: false, data: null, error: data.error };
    return { ok: true, data: data.data, error: null };
  } catch (error) {
    console.log(error);
    return { ok: false, data: null, error: error };
  }
}