I have this code running in
Client side:
$(function(){
var iosocket = io.connect();
iosocket.on('connect', function () {
$('#incomingChatMessages').append($('<li>Connected</li>'));
iosocket.on('message', function(message) {
$('#incomingChatMessages').append($('<li></li>').text(message));
});
iosocket.on('disconnect', function() {
$('#incomingChatMessages').append('<li>Disconnected</li>');
});
});
$('#outgoingChatMessage').keypress(function(event) {
if(event.which == 13) {
event.preventDefault();
iosocket.send($('#outgoingChatMessage').val());
$('#incomingChatMessages').append($('<li></li>').text($('#outgoingChatMessage').val()));
$('#outgoingChatMessage').val('');
}
});
});
Server Side
var fs = require('fs'), http = require('http'), socketio = require('socket.io');
var server = http.createServer(function(req, res) {
res.writeHead(200, { 'Content-type': 'text/html'});
res.end(fs.readFileSync(__dirname + '/index.html'));
}).listen(8080, function() {
console.log('Listening at: localhost');
});
socketio.listen(server).on('connection', function (socket) {
socket.on('message', function (msg) {
console.log('Message Received: ', msg);
socket.broadcast.emit('message', msg);
});
});
Question :
How can I include the getUserMedia and other WEBRTC API's to create a simple video application ?
Have you looked at, or found, an opensource code set named webrtc.io. If you look at the example code (in the webrtc.io-demo project), you will find a really good example of how to use the getusermedia and peerconnection API's. This code does implement node.js but websocket.io instead of socket.io. I do not know that much about either, so I am not sure if there exists any compatibility between them.
Related
I'm writing a web app in Node.js and socket.io. I have a couple of button listeners that pick up when a user has clicked a button and then performs a specific action (in this case, playing a small tone). For some reason, these buttons work perfectly in Chrome/Chromium, but don't work in Firefox or on mobile browsers (I've tested it with Safari on iOS and Chrome on Android).
Here's my code:
var socket = io.connect('http://localhost:5000');
var long = document.getElementById('long');
short = document.getElementById('short');
long.addEventListener('click', function() {
socket.emit('long', socket.id);
socket.broadcast.emit('audio file', {
audio: true,
audioBuffer: buf
});
});
short.addEventListener('click', function() {
socket.emit('short', socket.id);
socket.broadcast.emit('audio file', {
audio: true,
audioBuffer: buf2
});
});
socket.on('long', function(data) {
socket.broadcast.emit('audio file', {
audio: true,
audioBuffer: longbuf
});
console.log("Transmitting", socket.id);
});
socket.on('short', function(data) {
socket.broadcast.emit('audio file', {
audio: true,
audioBuffer: shortbuf
});
console.log("Transmitting", socket.id);
});
server.js
var express = require('express');
var socket = require('socket.io');
var fs = require('fs');
var app = express();
var server = app.listen(5000, function() {
console.log("Listening to requests on port 5000")
});
app.use(express.static('public'));
var io = socket(server);
io.on('connection', function(socket) {
console.log('New transmitter', socket.id);
fs.readFile(__dirname + '/public/sounds/trollism.wav', function(err,
longbuf) {
socket.on('long', function(data) {
socket.broadcast.emit('long', data);
console.log("Long press from " + socket.id);
socket.broadcast.emit('audio file', {
audio: true,
audioBuffer: longbuf
});
});
});
fs.readFile(__dirname + '/public/sounds/trollism2.wav',
function(err, shortbuf) {
socket.on('short', function(data) {
socket.broadcast.emit('long', data);
console.log("Short press from " + socket.id);
socket.broadcast.emit('audio file', {
audio: true,
audioBuffer: shortbuf
});
});
});
});
Thanks for any help.
Edit: Decided to go jfriend00's route and make the client call the server via socket.emit(). Thanks for your help!
For starters, socket.broadcast.emit() is not a client-side method. That's something that is available on the server. A client sends ONLY to the server with socket.emit().
A client doesn't send messages directly to other clients - that's not how socket.io works. socket.io is a connection from your client to your server. While the method may work on some platforms and send a message to your server, it is not documented and should not be used on any client platform.
Perhaps the iOS implementation either does nothing or has some sort of internal error when you attempt to use the undocumented socket.broadcast.emit(). You should be using socket.emit() instead.
If you want to relay messages to other clients from a client, you create your own message that you send to the server for that activity and then when the server receives that message, the server can then broadcast to other clients.
I have been looking into this Socket.io MVC node.js but I'm currently struggling.
It says in the documentation:
Socket.io API's
Since Socket.MVC is just a wrapping mechanism for Socket.io, all of
the same API's can be used using the Socket.MVC module. Please see a
list of all of the API's available by visiting the Socket.io Github
page, or http://socket.io (depending on your version)
My problem is that I cant find a way to emit socket MVC to a room.
socketMVC.to(userid).emit('message', {message:2});
Should work, but it doesn't. Any idea how I can accomplish this?
EDIT:
userid is same as assigned here:
import * as io from 'socket.io-client';
download
oninit:
this.socket = io(this.socketurl);
var privateRoom = socket.request.session.passport.user;
socket.join(privateRoom);
this.socket.on('message', (data) => {
// this.messagesCounter = this.messagesCounter + 1;
alert("OMG?");
});
edit , in server.js
io.on('connection',function(socket) {
console.log('user connected');
OnlineUsers.push(socket);
// socket.join('');
console.log(socket.request.session.passport);
console.log("user is connceted");
socketMVC.init(io, socket, {
debug: true,
filePath: ['./src/routes/sockets.js']
});
socket.on('disconnect', function(){
console.log('user disconnected');
});
socket.on('add-message',function (message) {
io.emit('message', {type:'new-message', text: message});
});
socket.on('myevent', function(someData) {
console.log("MYEVENT WORKS???????");
});
});
sockets.js
var path = require('path');
module.exports = function (socket) {
var privateRoom = socket.request.session.passport.user;
socket.join(privateRoom);
socket.on('testing', function() {
console.log('GOT SOME SORT OF RESPONSE!!!');
});
};
Replace socketMVC.to by socketMVC.io.to.
I have created a socket.io chat application on my virtual server (Ubuntu), which runs as an systemd service and which is active running.
My server.js is located in:
/var/www/vhosts/mywebpage.de/w1.mywebpage.de/chat/
The server.js looks like this:
const io = require('socket.io')(3055);
io.on('connection', function(socket) {
// When the client emits 'addUser', this listens and executes
socket.on('addUser', function(username, room) {
...
});
// When the client emits 'sendMessage', this listens and executes
socket.on('sendMessage', function(msg) {
...
});
// Disconnect the user
socket.on('disconnectUser', function(username, room) {
...
});
});
In my website (https) I try to connect as follow:
<script src="https://cdnjs.cloudflare.com/ajax/libs/socket.io/2.0.3/socket.io.js"></script>
<script type="text/javascript">
var loSocket;
$(document).ready(function() {
if(typeof(loSocket) == 'undefined') {
loSocket = io('https://w1.mywebpage.de:3055', {
reconnectionAttempts: 5,
forceNew: true
});
}
});
</script>
But I can't get a valid connection.
The developer tools say this:
(failed) ERR_CONNECTION_CLOSED with initiator polling-xhr.js:264.
What could be the error ?
From what I have done in the past I would create a https server which serves the SSL cert and create the socket server using the https server you created, this will allow you to connect via https and you will need to enable secure on socketio (use this question as a ref)
var app = require('http').createServer(handler)
var io = require('socket.io')(app);
var fs = require('fs');
app.listen(80);
function handler (req, res) {
fs.readFile(__dirname + '/index.html',
function (err, data) {
if (err) {
res.writeHead(500);
return res.end('Error loading index.html');
}
res.writeHead(200);
res.end(data);
});
}
io.on('connection', function (socket) {
socket.emit('news', { hello: 'world' });
socket.on('my other event', function (data) {
console.log(data);
});
});
Use this code as ref on how to create a socketio server using http
You can find this code on the socket.io docs
NOTE: You will need to you https not http like shown in the example
I'm using the code below to test websockets on my browser:
this.webSocket = new WebSocket("ws://echo.websocket.org");
this.webSocket.onopen = function(evt) {
cc.log("Send Text WS was opened.");
};
this.webSocket.onmessage = function(evt) {
this.socketSendTextTimes++;
var textStr = "response text msg: " + evt.data + this.socketSendTextTimes;
cc.log(textStr);
};
The code works well, but if I connect to my own server running the code below:
var http = require('http');
var io = require('socket.io');
var server = http.createServer(function(req, res) {
// Send HTML headers and message
res.writeHead(200,{ 'Content-Type': 'text/html' });
res.end('<h1>Hello!</h1>');
});
var socket = io.listen(server);
socket.set('destroy upgrade', false);
socket.on('connection', function(client) {
client.on('message', function(event) {
console.log('Received message from client!', event);
});
client.on('disconnect', function() {
console.log('Server has disconnected');
});
});
server.listen(8080);
console.log('start to listen');
My browser displays:
hello!
But the listening socket does not do anything. How can I connect to the Socket.IO server using websockets?
Socket.IO uses alternate transport methods than the native websocket, even when emulating websockets themselves. You will need the client library to connect to Socket.IO sockets.
Heya I'm trying to build a small chat client to learn how websockets work in order to make a game in canvas. It works great with sending sockets but they are only sending it to the the one who wrote it.
I guess I've missed something small, but I can't understand why it won't work.
Server side code
var app = require('express')()
, server = require('http').createServer(app)
, io = require('socket.io').listen(server);
server.listen(3000);
app.get('/', function (req, res) {
res.sendfile(__dirname + '/index.html');
});
io.sockets.on('connection', function (socket) {
socket.on('user-message', function (data) {
console.log(data);
sendMessage(data.message);
});
});
var sendMessage = function(message) {
io.sockets.emit('server-message', {message: message});
}
Client side code
<script src="/socket.io/socket.io.js"></script>
<script>
var socket = io.connect('http://localhost');
socket.on('server-message', function (data) {
var history = $('#chatbox').val();
$('#chatbox').val(history + "\n" + data.message)
});
$("#write").keyup(function(event){
if(event.keyCode == 13){
socket.emit('user-message', {message: $(this).val()});
$(this).val('');
}
});
</script>
You can use socket.broadcast.emit to send a message to all other sockets.
io.sockets.on('connection', function (socket) {
socket.on('user-message', function (data) {
console.log(data);
sendMessage.call(socket, data.message);
});
});
var sendMessage = function(message) {
this.emit('server-message', {message: message});
this.broadcast.emit('server-message', {message: message});
}