Online Multiplayer game match making - MIT App Inventor Help - MIT

the users who click on the play button, the username of that particular user is added to list in the firebase in the WaitingUsers tag. and if the tag has at least two users or more then how do i match them randomly? here my user name is Smith this is what i have done. then what do i do to make random matches? considering huge number of users.

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Online Multiplayer game match making - MIT App Inventor Help - MIT

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