i've followed this tutorial node.js working through nginx on 2 ubuntu 14.04 servers via private networking (node.js on myappserver - accessible via private ip myprivatewebserver , publicly via mypublicappserver - , nginx on mywebserver). works fine til point - can access node.js application on myprivateappserver:3000 proxied via nginx going http://mywebserver/node.
however, when try , run chat application in socket.io on express.js, works when access directly (http://mypublicappserver:3000) but, when try , access via nginx proxy (http://mywebserver/node), "cannot /node" in browser , in firebug console " "networkerror: 404 not found - http://mywebserver/node".
if curl http://myprivateappserver:3000 mywebserver, index.html socket.io application fine.
my /etc/nginx/sites-available/default contains:
location /node{ proxy_pass http://myprivateappserver:3000; proxy_http_version 1.1; proxy_set_header upgrade $http_upgrade; proxy_set_header connection 'upgrade'; proxy_set_header host $host; proxy_cache_bypass $http_upgrade; } my index.js is:
var app = require('express')(); var http = require('http').server(app); var io = require('socket.io')(http); app.get('/', function(req, res){ res.sendfile(__dirname + '/index.html'); }); io.on('connection', function(socket){ console.log('a user connected'); socket.on('disconnect', function(){ console.log('user disconnected'); }); socket.on('chat message', function(msg){ io.emit('chat message', msg); }); }); http.listen(3000, function(){ console.log('listening on *:3000'); }); and index.html is:
<!doctype html> <html> <head> <title>socket.io chat</title> <style> * { margin: 0; padding: 0; box-sizing: border-box; } body { font: 13px helvetica, arial; } form { background: #000; padding: 3px; position: fixed; bottom: 0; width: 100%; } form input { border: 0; padding: 10px; width: 90%; margin-right: .5%; } form button { width: 9%; background: rgb(130, 224, 255); border: none; padding: 10px; } #messages { list-style-type: none; margin: 0; padding: 0; } #messages li { padding: 5px 10px; } #messages li:nth-child(odd) { background: #eee; } </style> </head> <body> <ul id="messages"></ul> <form action=""> <input id="m" autocomplete="off" /><button>send</button> </form> <script src="/socket.io/socket.io.js"></script> <script src="http://code.jquery.com/jquery-1.11.1.js"></script> <script> var socket = io(); $('form').submit(function(){ socket.emit('chat message', $('#m').val()); $('#m').val(''); return false; }); socket.on('chat message', function(msg){ $('#messages').append($('<li>').text(msg)); }); </script> </body> </html> this first foray nginx/node/express/socket (i'm apache/cakephp person) may missing simple grateful pointers on how debug what's going wrong
this because socketio uses /socket.io path default, need configure nginx proxy not /node request, /socket.io too:
location ~ ^/(node|socket\.io) { #your proxy directives } (by way, looks have typos: wrote proxypass, correct form proxy_pass. same goes other proxy directives)
you need perform 1 more edit in nodejs server file. replace:
app.get('/', function(req, res){ with:
app.get('/node', function(req, res){ now should work.
this not solution. change socketio path changes in nginx config, solution described above seems simlest me. luck!
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