[web-devel] Hoogle Advice

Jeremy Shaw jeremy at n-heptane.com
Tue Jan 25 20:22:11 CET 2011

On Jan 25, 2011, at 12:45 PM, Michael Snoyman wrote:

> On Tue, Jan 25, 2011 at 8:35 PM, Jeremy Shaw <jeremy at n-heptane.com>  
> wrote:
>> On Jan 25, 2011, at 12:10 PM, Michael Snoyman wrote:
>>>>  7. the ServerPartT monad has a built-in FilterT monad which  
>>>> makes it
>>>> easy
>>>> to apply a function (Response -> Response) to modify the response.
>>> In all honesty, this is an argument *against* frameworks, not for
>>> them: at a WAI level, we don't need a FilterT monad, since an
>>> application is just a function.
> Yes, precisely. As I see it, the difference between the two  
> approaches would be:
> * Yesod's is a little bit faster. And I mean a *little* bit.
> * Happstack's is more powerful, in that you can do more than simply
> append a header.
> Would you concur?

Yes. The question, though isn't whether the Happstack vs Yesod  
approach is better, but whether having that functionality in some form  
at all is better than the bare bones WAI which gives you nothing :p  
Since both frameworks implement such functionality, clearly we must   
think the answer is 'yes' ;)

- jeremy
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