Created
February 27, 2012 15:39
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Test WebSocket/Socket.IO over ELB
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| node_modules |
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| var http = require('http') | |
| , httpProxy = require('http-proxy') | |
| ; | |
| var addresses = [ | |
| { host: 'localhost', port: 3000 } | |
| , { host: 'localhost', port: 3001 } | |
| , { host: 'localhost', port: 3002 } | |
| ]; | |
| function getTarget(index) { | |
| index = index || Math.floor(Math.random() * 3); | |
| var target = addresses[index]; | |
| return { host: target.host, port: target.port }; | |
| } | |
| var server = http.createServer(function(req, res) { | |
| // var proxy = new httpProxy.HttpProxy({ target: getTarget() }); | |
| var proxy = new httpProxy.HttpProxy({ target: addresses[0] }); | |
| proxy.proxyRequest(req, res); | |
| }); | |
| server.on('upgrade', function(req, socket, head) { | |
| // var proxy = new httpProxy.HttpProxy({ target: getTarget() }); | |
| var proxy = new httpProxy.HttpProxy({ target: addresses[1] }); | |
| proxy.proxyWebSocketRequest(req, socket, head); | |
| }); | |
| server.listen(4000); |
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| { | |
| "name": "application-name" | |
| , "version": "0.0.1" | |
| , "private": true | |
| , "dependencies": { | |
| "express": "2.5.8" | |
| , "ejs": ">= 0.0.1" | |
| , "socket.io": "0.9.1-1" | |
| , "ws": "0.4.7" | |
| , "redis": "0.7.1" | |
| , "http-proxy": "0.8.0" | |
| } | |
| } |
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| // Client | |
| var socket = io.connect(); | |
| function dispay(message) { | |
| document.getElementById('console').innerText += message + '\n'; | |
| }; | |
| socket.on('connect', function() { | |
| dispay('connect via ' + socket.socket.transport.name); | |
| socket.emit('msg send', 'hello'); | |
| socket.on('msg push', function (message) { | |
| dispay(message); | |
| }); | |
| socket.on('disconnect', function(){ | |
| dispay('disconnect'); | |
| }); | |
| }); | |
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| var express = require('express') | |
| , io = require('socket.io') | |
| , redis = require('redis') | |
| , port = process.argv[2] || 3000 | |
| ; | |
| var app = module.exports = express.createServer() | |
| , SocketRedisStore = io.RedisStore | |
| , io = io.listen(app) | |
| ; | |
| app.configure(function() { | |
| app.use(express.cookieParser()); | |
| app.use(express.session({ secret: 'elb websocket test' })); | |
| app.use(express.static(__dirname + '/public')); | |
| app.use(express.errorHandler({ dumpExceptions: true, showStack: true })); | |
| }); | |
| io.configure(function() { | |
| io.set('store', new SocketRedisStore()); | |
| }); | |
| io.sockets.on('connection', function(socket) { | |
| console.log('connect via', socket.transport); | |
| socket.on('msg send', function(msg) { | |
| socket.emit('msg push', msg + ' from ' + process.pid); | |
| }); | |
| }); | |
| app.listen(port); | |
| console.log('Express server listening on port %d in %s mode', app.address().port, app.settings.env); |
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| <html> | |
| <head> | |
| <title>Socket.IO Sample</title> | |
| </head> | |
| <body> | |
| <div id="console"></div> | |
| <script type="text/javascript" src="socket.io/socket.io.js"></script> | |
| <script type="text/javascript" src="sio-client.js"></script> | |
| </body> | |
| </html> |
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| var express = require('express') | |
| , io = require('socket.io') | |
| ; | |
| var app = module.exports = express.createServer() | |
| , io = io.listen(app); | |
| app.configure(function() { | |
| app.use(express.cookieParser()); | |
| app.use(express.session({ secret: 'elb websocket test' })); | |
| app.use(express.static(__dirname + '/public')); | |
| app.use(express.errorHandler({ dumpExceptions: true, showStack: true })); | |
| }); | |
| // io.configure(function() { | |
| // io.set('transports', ['xhr-polling']); | |
| // }); | |
| io.sockets.on('connection', function(socket) { | |
| console.log('connect via', socket.transport); | |
| socket.on('msg send', function(msg) { | |
| socket.emit('msg push', msg + ' from ' + process.pid); | |
| }); | |
| }); | |
| app.listen(3000); | |
| console.log('Express server listening on port %d in %s mode', app.address().port, app.settings.env); |
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| // Client | |
| var ws = new WebSocket('ws://localhost:4000'); | |
| function dispay(message) { | |
| document.getElementById('console').innerText += message + '\n'; | |
| }; | |
| ws.onopen = function() { | |
| dispay('connect via ' + 'websocket(ws)'); | |
| ws.send('hello'); | |
| ws.onmessage = function(ev) { | |
| dispay(ev.data); | |
| }; | |
| ws.onclose = function() { | |
| dispay('disconnect'); | |
| }; | |
| }; |
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| <html> | |
| <head> | |
| <title>WS Sample</title> | |
| </head> | |
| <body> | |
| <div id="console"></div> | |
| <script type="text/javascript" src="ws-client.js"></script> | |
| </body> | |
| </html> |
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| var express = require('express') | |
| , WebSocketServer = require('ws').Server | |
| , wss = new WebSocketServer({ port: 4000 }); | |
| ; | |
| var app = module.exports = express.createServer(); | |
| app.configure(function() { | |
| app.use(express.cookieParser()); | |
| app.use(express.session({ secret: 'your secret here' })); | |
| app.use(express.static(__dirname + '/public')); | |
| app.use(express.errorHandler({ dumpExceptions: true, showStack: true })); | |
| }); | |
| wss.on('connection', function(ws) { | |
| console.log('connected'); | |
| ws.on('message', function(msg) { | |
| ws.send(msg + ' from ' + process.pid); | |
| }); | |
| }); | |
| app.listen(3000); | |
| console.log('Express server listening on port %d in %s mode', app.address().port, app.settings.env); |
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Thanks for your tutorial.