https://medium.freecodecamp.org/match-making-with-firebase-hashnode-de9161e2b6a7

Have you just built your board game for Android? Want to get it online? You are in the right place — let’s build it together!

We are going to implement match-making with the Firebase Realtime Database in this article. For that, you need Firebase setup in your Android project — see how to do that here.