We use rest api with php backend. We have an autherization header that is needed for all requests. But, for this authorization token to be available we need to make a handshake request, and it gives us the token. I need to set this token somehow earlier than everything, so other requests work as expected. I tried middleware but it is setting cookie very late. I implemented next-auth for sign in, and I can set handshake token to session with callbacks, but when user visiting the page for the first time, they dont see anything because all requests are dependent to it. I would be very happy if you can help .

export default async (req: NextRequest): Promise<NextResponse> => {
  const res = NextResponse.next();

  let hsToken = req.cookies.get("handshake")?.value;
  if (!hsToken) {
    hsToken = await makeHandshake();
    // need to set before api requests fired 
    res.cookies.set("handshake", hsToken);
  }

  return res;
};

HEADER FOR REST API REQUESTS 
Authorization: `Bearer ${hsToken}`