如何在Wai/Warp应用中将请求从domain.com重定向到www.domain? [英] How to redirect requests from domain.com to www.domain in Wai/Warp app?
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问题描述
我的网站建在Haskell/Servant和Wai/Warp中.我需要将状态为301或302的所有请求从我的 domain.com
重定向到 www.domain.com
.我知道我可以以某种方式在Wai/Warp的帮助下做到这一点.到底是什么?
My site is built in Haskell/Servant and Wai/Warp. I need to redirect all requests from my domain.com
to www.domain.com
with the the 301 or 302 status. I know I can do that with the help of Wai/Warp somehow. How exactly?
startApp :: IO ()
startApp = run 1234 app
推荐答案
包 wai-util
具有便捷功能
The package wai-util
has a convenience function redirect'
to create such a Response
, so you should be able to do something like
app :: Application
app req respond = respond =<< redirect' status302 [] uri
where
Just uri = parseURI "http://example.com/"
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