[web-devel] A WebSocket library
jeremy at n-heptane.com
Tue Sep 27 19:34:23 CEST 2011
Happstack will be migrating to warp/wai really soon now. So, that
should make happstack support trivial.
 One of the many reasons for migrating Happstack to warp is to get
things like this for 'free'.
On Sep 25, 2011, at 9:46 AM, Jasper Van der Jeugt wrote:
> Hello all,
> I have been working on a WebSocket  library lately, which you can
> find here
> . It's getting to the point at which I want to release it on
> However, there is one thing remaining before the library will be
> really useful
> for applications: integration.
> I would like to provide integration with Happstack, Snap and Yesod
> -- this is
> why I have built the library around the enumerator package . It
> would be
> awesome if frameworks could more or less agree on a way in which an
> connection can be "transformed" to a WebSocket.
> That way, I will be able to provide packages such as `websockets-
> `websockets-snap` etc.
> Currently, the "entry point" of the websockets library is the
> runWebSockets :: WebSockets a
> -> Enumerator ByteString IO a
> -> Iteratee ByteString IO ()
> -> Iteratee ByteString IO a
> Where the first argument is the user-supplied code in the
> `WebSockets` monad
> (needs to keep a bit of state etc.), the second argument is an
> enumerator which
> the library can use to read from the socket, and the last argument
> is an
> iteratee with which the library can write to the socket.
> A web server then needs to provide some way to get this enumerator/
> pair, and hand it over to the library (currently, this is lacking).
> Some more
> details apply, e.g. the web server shouldn't kill the websocket
> handler as fast
> as regular HTTP connections.
> Is this proposal somewhat agreeable? I'm open to any feedback.
> : http://en.wikipedia.org/wiki/WebSocket
> : http://github.com/jaspervdj/websockets
> : http://hackage.haskell.org/package/enumerator
> web-devel mailing list
> web-devel at haskell.org
More information about the web-devel