Node 和 Socket.IO - 私人聊天（一对一）

Question

我正在创建与 Socket.IO 和 Express 的聊天，以便能够一对一聊天（私人聊天）。

主要问题是：我想向 socket.id 发送私人消息，但我希望发送者收到与他发送给接收者相同的消息。

module.exports = (io, socket) => {
  socket.on('send private message', async (msg) => {
    const emitterUser = // mongoose query to get the emitter
    const receiverUser = // mongoose query to get the receiver

    // sending to individual socketid (private message)
    socket.to(receiverUser.socketId).emit('receiver private message', msg); // <- sending to the receiver
    socket.emit('sender private message', msg);// <- sending to the sender
  });
}  

我想知道是否有更好的方法来创建私人聊天，或者我是否走错了方向。

Answer 1

可以使用socket-io的函数GROUP 文档：https://socket.io/docs/server-api/

更新

io.on('connection', function(socket){
  console.log('people connect: ' + socket.id);

  // listen create and join room from client
  socket.on('create-room', function(nameroom){
    socket.join(nameroom); // if room not exists create and join to room, if room exists client will join to room
    console.log(nameroom);

    // get all name room
    var array=[];
    for(r in socket.adapter.rooms){
      array.push(r);
    }
    console.log(array);
  });

  // listen message from client
  socket.on('client-send-message', function(message){
    io.sockets.in('some-name-room').emit('key-chat', message);
  });
});