How to disconnect a specific client

functiondisconnectSocket(id){
 io.of("/").sockets.get(id)?.disconnect();
}

functiondisconnectSocket(id){
 io.in(id).disconnectSockets();
}

This method can also be used to disconnect a given user:

functioncomputeUserId(socket){
// to be implemented
}

io.on("connection",(socket)=>{
const userId =computeUserId(socket);
 socket.join(userId);// use a room named after the user ID
});

functiondisconnectUser(userId){
 io.in(userId).disconnectSockets();
}

functiondisconnectLocalSocket(id){
return io.of("/").sockets.get(id)?.disconnect()!==undefined;
}

io.on("disconnectSocket",(id, cb)=>{
cb(disconnectLocalSocket(id));
});

asyncfunctiondisconnectSocket(id){
if(disconnectLocalSocket(id)){
returntrue;
}
try{
const res =await io.serverSideEmitWithAck("disconnectSocket", id);
return res.some(v=> v);
}catch(e){
// something went wrong
}
}