We might be able to use [1] for jaggery. [1] http://jaggeryjs.org/documentation.jag?api=webSocket
Thanks & Regards Danushka Fernando Senior Software Engineer WSO2 inc. http://wso2.com/ Mobile : +94716332729 On Thu, Jun 18, 2015 at 8:24 AM, Dimuthu Leelarathne <[email protected]> wrote: > Hi Sabra, > > Please find my answers inline. > > On Thu, Jun 18, 2015 at 7:27 AM, Sabra Ossen <[email protected]> wrote: > >> Hi Dimuthu, >> >> I understand the requirements, but have a few questions regarding the >> polling and the server. >> >> The appmgt jaggery app is hosted in the AS in cloud right? >> > > The NodeJS exercise was suggested for you to learn and get familiar with > socket io. But the real requirement is for appmgt jaggery app. It is hosted > in a AS-like server, which is AF server. If you can disable the login in > AF, you can do the test in AF server as well. But if you make it work in AS > then we can reuse it in AF too. > > > Why does the FE poll the BE? Is it to inform the user the progress of the >> application creation ( during this time the user does not perform any >> action)? Is this app creation time the only time the FE polls the BE? >> > > Not just for app creation. If you login to App Cloud it updates with all > events, build, deploy, user addition, resource addition and etc ... > Therefore we need to poll it. > > thanks, > dimuthu > > >> >> Thanks in advance for the clarifications. >> >> Regards. >> Sabra. >> >> >> On Thursday, June 18, 2015, Dimuthu Leelarathne <[email protected]> >> wrote: >> >>> Hi Sabra, >>> >>> Here is how socket.io can help in App Factory case. I have logged into >>> Cloud and gone into this page - >>> https://apps.cloud.wso2.com/appmgt/site/pages/index.jag. I am attaching >>> a screenshot. >>> >>> Here the FE polls the BE every second to update the wall. But actually I >>> am not doing any action. Since we don't have socket.io we are using the >>> only other option we have - polling. >>> >>> We want to use socket.io instead of polling. Please let me know if you >>> don't understand the requirement. >>> >>> thanks, >>> dimuthu >>> >>> >>> On Wed, Jun 17, 2015 at 10:07 PM, Sabra Ossen <[email protected]> >>> wrote: >>> >>>> Hi Dimuthu, >>>> >>>> Yes. I will research on integrating the socket.io code to App Server, >>>> if it becomes successful integrating the socket.io code to jaggery >>>> would be the next step. I will update you on the progress. >>>> >>>> Thanks. >>>> Sabra. >>>> >>>> On Wednesday, June 17, 2015, Dimuthu Leelarathne <[email protected]> >>>> wrote: >>>> >>>>> 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 >>>>> >>>> >>>> >>>> -- >>>> 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 > > _______________________________________________ > Dev mailing list > [email protected] > http://wso2.org/cgi-bin/mailman/listinfo/dev > >
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