Re: [web-devel] [Yesod] ANN: Wai routes 0.7

Thanks for the explanation. I have a small function for applying different middleware to different routes that I put up on a pull request now. https://github.com/yesodweb/wai/pull/384 On Fri, Jun 12, 2015 at 11:09 AM, Anupam Jain wrote:

Ah great question! One that I keep revisiting in my mind every time I think of adding something to wai-routes. Short answer - No. Long answer follows.

Wai-routes' stated goal is to "provide a similar level of typesafe URL functionality to Wai applications as is available to Yesod applications". The feature list may make it seem like a larger framework, but it's really all just features provided by the routing code from yesod! Writing plain wai apps is tough though, so wai-routes provides a thin veneer over some of the rough edges, just enough to make it pleasant.

Sometimes the simplicity of wai-routes makes it easier to use than Yesod. For example, it is really easy to have multiple independent route sets that match one after the other, so you can better logically group your app, instead of putting all routes in one big file. You can also apply different middleware to the different route sets. I'm currently not aware of any way to do that in Yesod.

The de-coupling from wai also insulates the user from changes to the wai api. So the same wai-routes code continued to work when Wai-3.0 changed to a CPS style. ...Though that leaves the user vulnerable to changes in the wai-routes api... which happens quite more often... So, forget I said that! :)

-- Anupam

On Fri, Jun 12, 2015 at 9:58 PM, Greg Weber wrote:

...

To me, wai-routes seems like a full web framework and a re-implementation of Yesod (I am not suggesting that it is a bad thing). Is that its goal?

On Tue, Jun 9, 2015 at 3:54 PM, Anupam Jain wrote:

...

Hi all,

I have just released v0.7 of wai-routes, the typesafe urls framework for wai. After letting the code rot for several months, I finally managed to carve out some time to do a bit of housekeeping. The code now compiles with ghc 7.8 and 7.10, and is compatible with wai-3.0. The dependency on yesod-routes has also been removed, as that package was deprecated, and its code has been folded into wai-routes.

I also took the opportunity to add a few long pending features - 1. Subsites! Simpler than the corresponding concept in Yesod, though probably less powerful as well. This is still an evolving experimental feature. 2. Ability to get information about the currently executing route, including the Route Attributes (which is exactly the same thing as in Yesod).

Get it at - [http://hackage.haskell.org/package/wai-routes] [https://github.com/ajnsit/wai-routes].

Feedback would be greatly appreciated, especially from people using wai-routes in their projects!

-- Anupam

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