How to receive NodeBB server notification from external web socket client

[learner]

I have installed NodeBB for exploring it's features and it is superb one. I am trying to receive notifications that are received and displayed on NodeBB page (local installation) in an external web socket client that I have developed. My NodeBB server is running at http://localhost:4567 and I tried to use the same URL in my websocket client app to connect and receive notifications from my NodeBB server. However, it didn't work.
I have developed a simple Node express server that runs on http://localhost:8080 and I can receive notifications from that server in my web socket client using the URL http://localhost:8080.
If someone can provide pointers / help on how can I connect my web socket client to my local NodeBB server and receive notifications that will be very helpful.

Thanks in advance!

[PitaJ]

Make sure you're using socket.io for all websocket stuff.

There's probably some configuration with regard to socket.io that has to be made.

That's all I've got.

[learner]

@pitaj said:

socket.io

Thanks for the reply. I am trying to build my web-socket client as windows application. I am not using nodeJS for this.

[PitaJ]

@learner What language are you using?

[learner]

I am using C#

[julian]

https://github.com/NodeBB/NodeBB/blob/master/public/src/app.js#L18-L23

Are you connecting to /socket.io?

[learner]

@julian Thanks for response and sorry for delay on my part as I was down!

I notice that while connecting to the websocket, browser requests with URL like below -

ws://<IP address>:4567/socket.io/1/websocket/GQlkcIbCyFu8a5C_tNyL

The last portion of the URL, i.e, “GQlkcIbCyFu8a5C_tNyL” changes to some different value in times and is not static throughout the browser session.

If I try to connect to the socket without this token, i.e, “ws://<IP address>:4567/socket.io/1/websocket”, I am not able to connect to it. It requires the last part as well. I am not sure how this token is generated or how to fetch this token before starting the socket connection.

If I try chrome websocket plugin to test connection, I always get handshake error “7:::1+0” if I do not use this token, otherwise able to connect to it with token copy pasted from browser dev eloper tools.

Thanks for your guidance in advance!

[julian]

I'm unfamiliar with C#, and we don't handle socket establishing on our end, we just let the socket.io library handle it.

Perhaps you can get a better idea by investigating the source code of this project? http://socketio4net.codeplex.com/

[learner]

@julian said:

I'm unfamiliar with C#, and we don't handle socket establishing on our end, we just let the socket.io library handle it.

Perhaps you can get a better idea by investigating the source code of this project? http://socketio4net.codeplex.com/

Hi Julian,
I am using that only. Can you provide some help on how can I connect using Chrome Web socket plugin, I mean what URL to use? That might clarify my query.

My objective of using C# is that I want to see whether I can get notifications from outside without logging into my local NodeBB application.

Thanks!