I'm creating an application where If I lose a bet I'm gonna pay $10 to my friend and he loses then he does the same also but I don't know how do I Implement this transaction using react and node, I mean which service should I use to do this?

Either paypal api, or just use crypto

Can't answer that (sorry) but I came up with a betting idea a few years back. If this ends up being in your app I'm up for using it.

Create a group for a bet, have everyone pay X in to the pot and make thier choice. The app holds the pot. The bet plays out - the host has to provide the result of the bet - the other players have Y minutes to contest the result, with a reason (then it comes down to a vote). Alternatively there is a non-betting "settler" who in the event of a disagreement has final say (and they can be rewarded by settler points. Get enough points and maybe their reward could be a small percentage of the total pot as payment for service)