title: Device-to-device messages with FCM and XMPP
body: <p>I'm setting up a React Native app to, essentially, send messages between devices (it's not a chat app in practice but technically that's what it's doing).  I've decided to use Firebase and the RN Firebase library to manage this.</p>
  <p>I've finally got my iPhone receiving notifications from the Firebase notification composer. But it's saying I need an XMPP server in order to send messages <em>from</em> devices.</p>
  <p>I do see the example in the <a href="https://rnfirebase.io/messaging/usage/messaging-with-xmpp" rel="nofollow noreferrer">RN Firebase docs</a> but I'm hoping to do this app severless, just using Firebase for messaging, db, what have you.</p>
  <p>I'm going through docs on Firebase (searching their site for XMPP) but it's not quickly clear, so I'm posting here to see if anyone can point me to instructions to quickly set this up in Firebase itself without running my own server (or that someone would know whether it's possible).</p>