Re: [web-devel] WAI routing?

you might be interested in looking at the routing code in scotty, which has some extra features. https://github.com/xich/scotty On Sat, Mar 17, 2012 at 6:02 AM, yi huang wrote:

On Sat, Mar 17, 2012 at 11:06 AM, Stephen Paul Weber wrote:

...

I looked around, but could not find a lot of routing packages for WAI.  There is wai-routes, but QuasiQuote makes me nervous.

So, I hacked together a very simple router (attached).  It works, though it is not efficient for large routing tables (it just does a linear scan over all possible routes in the worst case).

I'm curious: (a) what are other people using? (b) are there glaringly stupid things I've done in my code?

Thanks :)

I use plain case expression to do routing for my simple wai applications, ghc's desugar can make it more efficent than linear scan, the code is like this:

case (requestMethod req, pathInfo req) of     ("GET", []) -> index     ("GET", ["object", pk]) -> getObject pk     ("POST", ["object", pk]) -> jsonBody >>= updateObject pk     _ -> bad status404 "no route match"

...

-- Stephen Paul Weber, @singpolyma See http://singpolyma.net for how I prefer to be contacted edition right joseph

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