update

src/socket/socket.gateway.ts

@@ -156,4 +156,10 @@ export class SocketGateway
   ): Promise<void> {
     await this.roomService.handleExitAction(socket, message);
   }
+
+  @SubscribeMessage('active-status')
+  async handleActive(@ConnectedSocket() socket: Socket) {
+    const sockets = this.server.sockets.sockets.size;
+    socket.emit('active-status', { number: sockets });
+  }
 }