Hi Sabra, We definitely can use this if we can check whether same principals can be applied to a Jaggery app in App server. Then we can use it for the wall improvements.
thanks, dimuthu On Wed, Jun 17, 2015 at 6:46 PM, Sabra Ossen <[email protected]> wrote: > Hi Dimuthu, > > I believe so. By following the blog I was able to use Nginx and socket.io > in load balancing a real time chat app which was hosted using node js, > whereas the same principle is applicable if the jaggery files ( content we > serve from the server ) as well as the server contains socket.io code > integrated. > > Thanks. > Sabra > > > On Wednesday, June 17, 2015, Dimuthu Leelarathne <[email protected]> > wrote: > >> Hi Sabra, >> >> Could we setup Jaggery in the same way? >> >> thanks, >> dimuthu >> >> On Tue, Jun 16, 2015 at 1:03 PM, Sabra Ossen <[email protected]> wrote: >> >>> Hi All, >>> >>> I was able to resolve the issue. The problem was that I was accessing >>> the socket.io chat app that I created, from the file system. The >>> correct way to access the chat app was by going to localhost:3000/ ( host >>> and port, where the server can be accessed indicated by the code in >>> index.js) in the web browser and there was no need to download the >>> socket.io and jquery js files. >>> >>> Thanks Tharik for helping me get a clear understanding on CORS. >>> >>> Regards. >>> >>> On Sun, Jun 14, 2015 at 10:33 PM, Sabra Ossen <[email protected]> >>> wrote: >>> >>>> Hi Tharik, >>>> >>>> I searched up on CORS (Cross Origin Resource Sharing) and based on my >>>> understanding the problem is that I am trying to access a resource on >>>> another domain from my domain. Therefore a simple solution would be to >>>> download both the *socket.io-1.2.0.js and jquery-1.11.1.js*. >>>> >>>> I included them in the directory containing the html file and changed >>>> the script as follows. >>>> >>>> *.....* >>>> >>>> *<script src="socket.io-1.2.0.js"></script><script >>>> src="jquery-1.11.1.js"></script>* >>>> >>>> >>>> *.....* >>>> But the error still persists. >>>> >>>> Regards. >>>> >>>> On Sun, Jun 14, 2015 at 8:14 AM, Tharik Kanaka <[email protected]> wrote: >>>> >>>>> Hi Sabra, >>>>> >>>>> This happens because of same origin policy where that specific >>>>> resource hosted at some other domain and javascript is running on local >>>>> machine. To resolve that usually CORS headers needs to be added to the >>>>> response from the server side. >>>>> >>>>> In your case did you try by moving *socket.io-1.2.0.js* file (where >>>>> you refer CDN hosted file in the code) to your local machine and refer it? >>>>> >>>>> Regards, >>>>> >>>>> On Sat, Jun 13, 2015 at 9:36 PM, Sabra Ossen <[email protected]> >>>>> wrote: >>>>> >>>>>> Hi All, >>>>>> >>>>>> I am following the tutorial mentioned in [1] and trying to create a >>>>>> chat application using socket.io and node js. >>>>>> >>>>>> I have installed express and socket.io on my machine. The versions >>>>>> are specified in the package.json below. >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> *{ "name": "socket-chat-example", "version": "0.0.1", >>>>>> "description": "my first socket.io <http://socket.io> app", >>>>>> "dependencies": { "express": "~4.10.2", "socket.io >>>>>> <http://socket.io>": "~1.2.0" }}* >>>>>> >>>>>> The node server code is specified below. >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> *var app = require('express')();var http = >>>>>> require('http').Server(app);var io = require('socket.io >>>>>> <http://socket.io>')(http);app.get('/', function(req, res){ >>>>>> res.sendFile(__dirname + '/index.html');});io.on('connection', >>>>>> function(socket){ socket.on('chat message', function(msg){ >>>>>> io.emit('chat message', msg); });});http.listen(3000, function(){ >>>>>> console.log('listening on *:3000');});* >>>>>> >>>>>> The content of the html file being accessed is specified below. >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> *<!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="https://cdn.socket.io/socket.io-1.2.0.js >>>>>> <https://cdn.socket.io/socket.io-1.2.0.js>"></script> <script >>>>>> src="http://code.jquery.com/jquery-1.11.1.js >>>>>> <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>* >>>>>> >>>>>> The code can also be found in [2]. >>>>>> >>>>>> I am getting the following error in the firefox console with the app >>>>>> failing. >>>>>> >>>>>> >>>>>> *Cross-Origin Request Blocked: The Same Origin Policy disallows >>>>>> reading the remote resource at >>>>>> http://file/socket.io/?EIO=3&transport=polling&t=1434211017174-2 >>>>>> <http://file/socket.io/?EIO=3&transport=polling&t=1434211017174-2>. >>>>>> (Reason: CORS request failed).GET XHR http://file/socket.io/ >>>>>> <http://file/socket.io/>* >>>>>> >>>>>> I have exhaustively searched for a solution for the above issue but >>>>>> was unsuccessful. I highly appreciate any input on the above problem. >>>>>> Thanks in advance. >>>>>> >>>>>> [1] http://socket.io/get-started/chat/ >>>>>> [2] https://github.com/rauchg/chat-example >>>>>> >>>>>> Regards. >>>>>> -- >>>>>> Sabra Ossen <http://lk.linkedin.com/in/sabraossen> >>>>>> Undergraduate | Department of Computer Science and Engineering >>>>>> University of Moratuwa >>>>>> Sri Lanka >>>>>> >>>>>> _______________________________________________ >>>>>> Dev mailing list >>>>>> [email protected] >>>>>> http://wso2.org/cgi-bin/mailman/listinfo/dev >>>>>> >>>>>> >>>>> >>>>> >>>>> -- >>>>> >>>>> *Tharik Kanaka* >>>>> >>>>> WSO2, Inc |#20, Palm Grove, Colombo 03, Sri Lanka >>>>> >>>>> Email: [email protected] | Web: www.wso2.com >>>>> >>>> >>>> >>>> >>>> -- >>>> Sabra Ossen <http://lk.linkedin.com/in/sabraossen> >>>> Undergraduate | Department of Computer Science and Engineering >>>> University of Moratuwa >>>> Sri Lanka >>>> >>> >>> >>> >>> -- >>> Sabra Ossen <http://lk.linkedin.com/in/sabraossen> >>> Undergraduate | Department of Computer Science and Engineering >>> University of Moratuwa >>> Sri Lanka >>> >> >> >> >> -- >> Dimuthu Leelarathne >> Director & Product Lead of App Factory >> >> WSO2, Inc. (http://wso2.com) >> email: [email protected] >> Mobile : 0773661935 >> >> Lean . Enterprise . Middleware >> > > > -- > Sabra Ossen <http://lk.linkedin.com/in/sabraossen> > Undergraduate | Department of Computer Science and Engineering > University of Moratuwa > Sri Lanka > > -- Dimuthu Leelarathne Director & Product Lead of App Factory WSO2, Inc. (http://wso2.com) email: [email protected] Mobile : 0773661935 Lean . Enterprise . Middleware
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