Socket.io connects to the unix connector

Question

I want to connect to a unix socket using socket.io-client, There is no success (mostly a timeout error, the last fetch is a dns resolution error).

var clientio  = require('socket.io-client');
// i tried all variants here
//client=clientio.connect('port.io/',{'force new connection': true});
//client=clientio.connect('unix://port.io/',{'force new connection': true});
//client=clientio.connect('http//unix:port.io/',{'force new connection': true});

client.on('connect',connect);

Is there a way to connect the socket.io client to a unix socket?

I checked the server socket with nc -U port.io, it works fine.

Answer 1

Just found this, looking for answers to a similar question.

AFAIK socket.io-clientdepends on engne.io-client, which depends on wswhich it contains:

var isUnixSocket = serverUrl.protocol === 'ws+unix:';

See here: https://github.com/websockets/ws/blob/4f99812b1095979afaad58865846b160334f3415/lib/WebSocket.js#L598 .

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, - :

var client=clientio.connect('ws+unix:/port.io',{'force new connection': true});

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Answer 2

socket.io webSocket, TCP. Unix-, socket.io.

net.Socket, : http://nodejs.org/api/net.html, TCP UNIX ".

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nodejs nodejs, socket.io, socket.io , , socket.io:

var socket = require('socket.io-client')('http://port.io');
socket.on('connect', function(){});
socket.on('event', function(data){});
socket.on('disconnect', function(){});

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, URL Unix.

Answer 3

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unix , , socket.io( WebSockets)

// Generated by CoffeeScript 1.9.2
var app, domain_server, fs, io, net, server;
fs = require('fs');
net = require('net');
app = require('express')();
server = require('http').Server(app);
io = require('socket.io')(server);

/* Handle Unix Domain Socket
 * * Delete file if it already exists, 
 *   avoiding EADDRINUSE  */

if (fs.existsSync('/tmp/domain_socket')) {
  fs.unlinkSync('/tmp/domain_socket');
}

domain_server = net.createServer(function(socket) {
  socket.on('data', function(data) {
    /* broadcast messages from unix socket to websockets */
    io.sockets.emit('domain-message', data.toString());
  });
});

domain_server.listen('/tmp/domain_socket', function() {
  console.log('domain_server bound');
});


/*
 * Handle Web Serving/WebSockets
 */

server.listen(8080);

app.get('/', function(req, res) {
  res.sendFile(__dirname + '/index.html');
});

io.on('connection', function(socket) {
  socket.emit('message', {
    hello: 'connected'
  });
});