How can i createCaller from a NextJs App Router if my server uses express tRPC adapter?

export const createTRPCServerClient = async () => {
    const authToken = ""; // Grab from cookies
    return createTRPCProxyClient<AppRouter>({
        transformer: superjson,
        links: [
            httpBatchLink({
                url: "http://your-url.com/api/trpc",
                headers: {
                    ...(authToken ? { authorization: `Bearer ${authToken}` } : {}),
                },
            }),
        ],
    });
};