how to get session id of socket io client in Client

Question

I want to get session id of client in my socket io client   here is my socket io client    var socket   new io Socket config host   port  config port  rememberTransport  false           when connected  clear out display     socket on  connect  function             console log  dummy user connected                socket on  disconnect  function             console log  disconnected                socket connect        return socket    I want to get session id of this client   how can i get that

User · Answer

Have a look at my primer on exactly this topic.

UPDATE:

var sio = require('socket.io'),
    app = require('express').createServer();

app.listen(8080);
sio = sio.listen(app);

sio.on('connection', function (client) {
  console.log('client connected');

  // send the clients id to the client itself.
  client.send(client.id);

  client.on('disconnect', function () {
    console.log('client disconnected');
  });
});

User · Answer

On socket io   1 0  after the connect event has triggered   var socket   io  localhost    var id   socket io engine id

User · Answer

On Server side  io on  connection   socket   gt        console log socket id       On Client side  import io from  socket io-client    socket   io connect  http   localhost 5000    socket on  connect        gt        console log socket id  socket io engine id  socket json id       If socket id  doesn t work  make sure you call it in on  connect   or after the connection

User · Answer

Try from your code  socket socket sessionid ie       var socket   io connect  http   localhost    alert socket socket sessionid     var sendBtn  document getElementById  btnSend      sendBtn onclick  function    var userId document getElementById  txt1   value  var userMsg   document getElementById  txt2   value  socket emit  sendto   username  userId  message  userMsg          socket on  news   function  data        console log data       socket emit  my other event     my   data              socket on  message  function data   console log data

User · Answer

Please Note  as of v0 9 the set and get API has been deprecated    The following code should only be used for version socket io  lt  0 9  See  http   socket io docs migrating-from-0-9    It can be done through the handshake authorization mechanism   var cookie   require  cookie    io set  authorization   function  data  accept           check if there s a cookie header     if  data headers cookie               if there is  parse the cookie         data cookie   cookie parse data headers cookie              note that you will need to use the same key to grad the            session id  as you specified in the Express setup          data sessionID   data cookie  express sid          else             if there isn t  turn down the connection with a message           and leave the function         return accept  No cookie transmitted    false                accept the incoming connection     accept null  true         All the attributes  that are assigned to the data object are now accessible through the handshake attribute of the socket io connection object   io sockets on  connection   function  socket        console log  sessionID     socket handshake sessionID

User · Answer

For some reason   socket on  connect   function         console log socket io engine id          did not work for me  However  socket on  connect   function         console log io   id          did work for me  Hopefully this is helpful for people who also had issues with getting the id  I use Socket IO    1 0  by the way

User · Answer

I just had the same problem question and solved it like this  only client code    var io   io connect  localhost     io on  connect   function          console log this socket sessionid

User · Answer

Try this way                   var socket   io connect  http                          console log socket Socket sessionid

[javascript] how to get session id of socket.io client in Client

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