如何在旧的socket.io代码中更改'deprecated set（）和get（）？

Question

I'm new to node/socket.io and working with an old tutorial to make a chatroom.

Here is socket.js part:

exports.initialize = function (server) {
  io = io.listen(server);

  var chatInfra = io.of("/chat_infra")
      .on("connection", function(socket){
        socket.on("set_name", function (data) {
          socket.set('nickname', data.name, function () {
            socket.emit('name_set', data);
            socket.send(JSON.stringify({type:'serverMessage',
              message:'Welcome to the most interesting ' +
              'chat room on earth!'}));
            socket.broadcast.emit('user_entered', data);
          });
        });
      });

  var chatCom = io.of("/chat_com")
      .on("connection", function (socket) {
        socket.on('message', function (message) {
          message = JSON.parse(message);
          if (message.type == "userMessage") {
            socket.get('nickname', function (err, nickname) {
              message.username = nickname;
              socket.broadcast.send(JSON.stringify(message));
              message.type = "myMessage";
              socket.send(JSON.stringify(message));
            });
          }
        });
      });
}

But I get

TypeError: Object #<Socket> has no method 'set'
    at Socket.<anonymous> (/home/me/awesome-chat/routes/sockets.js:9:18)

I am using "socket.io": "^1.4.8" and I know that set() is deprecated so I tried to chage the set part to use .use() as per docs example, but I had no luck in that and got:

TypeError: Object #<Socket> has no method 'use'

The same goes for the .get() part. So I'm really perplexed and appreciate your hints.

Answer 1

Socket#set and Socket#get are not a method of Socket.IO , so it can't be used. Then have to remove those methods.

you can assign that stuff like this

socket.nickName = 'Hola' and read it as it is

For getting that value in your code, you can do something like this

  .on("connection", function (socket) {
        socket.on('message', function (message) {
          message = JSON.parse(message);
          if (message.type == "userMessage") {
           if(socket && socket.nickname){
              message.username = socket.nickname;
              socket.broadcast.send(JSON.stringify(message));
              message.type = "myMessage";
              socket.send(JSON.stringify(message));
          };
          }
        });
      });

Please see the Socket.IO API for details

And here is updated libs of Socket.io