@Souvlaki42 this’d be the correct place to access the connection:
After “handling” psync and writing the response, that same connection object is what you’ll need to call Write on to propagate commands.
Looks like you’ve already got a replicas global here, instead of a channel you could use an array ([]net.Conn) and then append to that array from within handleConnection after receiving the psync command. That way all replica connections will be accessible from other parts of your program.
Note that you’ll need to find a way to prevent the defer connection.Close() statement within handleConnection from firing, else that’d close the connection when the handleConnection function exits.
Hope this helps!