It probably won't have any affect on Yesod. However, the next version
of Yesod is making some parallel changes, namely switching over to the
Text datatype whenever possible. It should help out performance a bit
(less marshaling data around, using packed representation, etc). But
I'm mostly doing it for consistency.
For the record: I'm hoping to make a Yesod 0.8 release fairly soon,
and I don't anticipate that very much 0.7 code will break with the new
release. Getting WAI 0.4 out the door is the first step in this
process.
Michael
On Mon, Mar 28, 2011 at 11:27 AM, Anton Cheshkov
I have a question: how WAI 0.4 will affect on yesod API ?
Thanks. 2011/3/28 Michael Snoyman
Hi all,
Just wanted to give everyone a last chance to give input on WAI 0.4 before its release. You can see the code on Github[1]. The main things to point out in this release are:
* We've switched to using http-types, so WAI needs to define much less on its own (i.e., statuses, HTTP versions, etc). Additionally, we now rely on the case-insensitive library for header keys. * The Request datatype now contains parsed pathInfo and queryString. This makes it more efficient to write middlewares. The raw path info and query string are still available as rawPathInfo and rawQueryString, respectively. * Partial file responses are now supported. The ResponseFile constructor takes a fourth argument, Maybe FilePart. FilePart contains the offset and count.
If anyone has other ideas that they'd like to see implemented in WAI, please get them in sooner, rather than later. I'm hoping that this release will last for quite a while. We'll also be releasing a number of associated packages at the same time (wai-extra, warp, wai-test, etc), so if you have comments on those, feel free to submit them as well.
Michael
[1] https://github.com/snoyberg/wai/blob/master/Network/Wai.hs
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