title: How do I send Firebase token to backend (Node / Express) via HTTPS
body: <p>I have client-side login on my app which is working just fine. Now I need to pass the clients UID to Node.</p>
  
  <p>Found this <a href="https://firebase.google.com/docs/auth/admin/verify-id-tokens" rel="nofollow noreferrer">Verify ID Tokens</a> in Firebase docs, but i just don't know how would i actually do this part: "Send token to your backend via HTTPS"</p>