express setImmediate(function () { error

Skip to first unread message

alfred mosima

Feb 11, 2017, 8:10:04 AM2/11/17
to Express

m busy with a chat app with nodejs 6 socketio 1.7.2 express 4.14.1. i can run node index.js but as soon as i access my page simplechat.html it throws the below error. Please help

/root/Chat/node_modules/express/lib/response.js:1013 setImmediate(function () { ^ ReferenceError: setImmediate is not defined at Array.onfinish [as 0] (/root/Chat/node_modules/express/lib/response.js:1013:5) at listener (/root/Chat/node_modules/express/node_modules/on-finished/index.js:169:15) at onFinish (/root/Chat/node_modules/express/node_modules/on-finished/index.js:100:5) at callback (/root/Chat/node_modules/express/node_modules/on-finished/node_modules/ee-first/index.js:55:10) at ServerResponse.onevent (/root/Chat/node_modules/express/node_modules/on-finished/node_modules/ee-first/index.js:93:5) at ServerResponse.EventEmitter.emit (events.js:126:20) at ServerResponse.OutgoingMessage._finish (http.js:837:8) at ServerResponse.OutgoingMessage.end (http.js:822:10) at onend (stream.js:66:10) at EventEmitter.emit (events.js:126:20)

Package json file

 { "name": "Chat", "version": "0.0.0", "description": "ERROR: No file found!", "main": "index.js", "scripts": { "test": "echo \"Error: no test specified\" && exit 1" }, "repository": "", "author": "", "license": "BSD", "dependencies": { "express": "~4.14.1", "": "~1.7.2" }

Index.js File

// We need to use the express framework: have a real web server that knows how to send mime types etc.

var express=require('express');
// Init globals variables for each module required
var app = express()
, http = require('http')
, server = http.createServer(app)
, io = require('').listen(server);

// Indicate where static files are located
//app.configure(function () {
.use(express.static(__dirname + '/'));

// launch the http server on given port
.log('Server running at http://***.***.***.**:8000/');
// routing
.get('/', function (req, res) {
.sendFile(__dirname + '/simpleChat.html');

// usernames which are currently connected to the chat
var usernames = {};

.sockets.on('connection', function (socket) {

// when the client emits 'sendchat', this listens and executes
.on('sendchat', function (data) {
// we tell the client to execute 'updatechat' with 2 parameters
.sockets.emit('updatechat', socket.username, data);

// when the client emits 'adduser', this listens and executes
.on('adduser', function(username){
// we store the username in the socket session for this client
.username = username;
// add the client's username to the global list
[username] = username;
// echo to client they've connected
.emit('updatechat', 'SERVER', 'you have connected');
// echo globally (all clients) that a person has connected
.broadcast.emit('updatechat', 'SERVER', username + ' has connected');
// update the list of users in chat, client-side
.sockets.emit('updateusers', usernames);

// when the user disconnects.. perform this
.on('disconnect', function(){
// remove the username from global usernames list
delete usernames[socket.username];
// update list of users in chat, client-side
.sockets.emit('updateusers', usernames);
// echo globally that this client has left
.broadcast.emit('updatechat', 'SERVER', socket.username + ' has disconnected');

<script src=""></script>
        <script src=""></script>
        var socket = io.connect(); // we might pass the URL of the WS server as parameter here

        // on connection to server, ask for user's name with an anonymous callback
        socket.on('connect', function(){
        // call the server-side function 'adduser' and send one parameter (value of prompt)
        socket.emit('adduser', prompt("What's your name?"));

        // listener, whenever the server emits 'updatechat', this updates the chat body 
        socket.on('updatechat', function (username, data) {
        $('#conversation').append('<b>'+username + ':</b> ' + data);

        // listener, whenever the server emits 'updateusers', this updates the username list
        socket.on('updateusers', function(data) {
        $.each(data, function(key, value) {
        $('#users').append('<div>' + key + '</div>');

        // on load of page
        // when the client clicks SEND
        $('#datasend').click( function() {
        var message = $('#data').val();
        // tell server to execute 'sendchat' and send along one parameter
        socket.emit('sendchat', message);

        // when the client hits ENTER on their keyboard
        $('#data').keypress(function(e) {
        if(e.which == 13) {

        <div style="float:left;width:100px;border-right:1px solid black;height:300px;padding:10px;overflow:scroll-y;">
        <div id="users"></div>
        <div style="float:left;width:300px;height:250px;overflow:scroll-y;padding:10px;">
        <div id="conversation"></div>
        <input id="data" style="width:200px;">
        <input type="button" id="datasend" value="send">

Reply all
Reply to author
0 new messages