node.js - socket.io private chat with nodejs -


how can manage chat user user

user ,b , user c login user send message user c user c see message when send message receiver side socket not receive message
use multiple method msg not receive how manage socket.io node js how manage system please me

  io.sockets.on('connection', function (socket) {  socket.on('connection', function (data, callback) {     if (data in users) {         callback(false);     } else {         callback(true);         socket.nickname = data;         users[socket.nickname] = socket;          updatanicknames();          var list= object.keys(users);            io.sockets.on('connection', function (socket) {         socket.on('send-message', function (messages) {             var msg_number = fs.readfilesync('creditional/database.txt', 'utf8');             var msg_id = msg_number.tostring();             var next_msg_id = (msg_id - 0) + (1 - 0);             fs.writefile('creditional/database.txt', next_msg_id, function (err) {                 if (err)                     return console.log(err);             });             var text = messages.message;             var image_url = messages.image_url;             var email = messages.email;             var sid = messages.sid;             var rid = messages.rid;             var type = messages.msg;             var name = messages.name;             var sname = messages.sname;             var time = messages.msgts;             var mess_set = {                 "messageid": msg_id,                 "ishtml": false,                 "servermsgts": time,                 "msgts": time,                 "rid": rid,                 "sname": sname,                 "text": text,                 "sid": sid,                 "type": "0",                 "rname": "rname",                 "imgname": image_url,             }              var message_data = json.stringify(mess_set);              var stanza = new xmpp.element('message', {to: rid + '@testing.twodegrees.io', type: 'chat', id: rid}).                     c('body').t(message_data)             var msg_stat = connection.send(stanza);             console.log('message status..:', msg_stat);          })     });       io.once('connection', function (socket) {         connection.on('stanza', function (stanza) {             var body = stanza.getchild('body');             var message = body.gettext();             var data = json.parse(message);              var name2 = data.rid;            var name =name2.trim();            console.log('reciver chat id',name);             if (name in users) {                 console.log(users[name]);                users[name].emit('newmessage',{messages: data});              } else {                 console.log('in else', name);             }            });      });   });  });


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