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< Erlyweb mailing list ~ Porting Erlyweb to ewgi (Was:ErlyWeb dependencies and their |
| Guest |
 Posted: Thu Jan 03, 2008 8:59 pm |
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On Jan 3, 2008, at 3:44 PM, Adam Bozanich wrote:
> On Jan 3, 2008 10:42 AM, Yariv Sadan <yarivsadan@gmail.com> wrote:
>
> On Jan 3, 2008 3:32 AM, Filippo Pacini <filippo.pacini@gmail.com>
> wrote:
>
> > > * yaws_args/yaws_headers - This looks pretty straightforward. We'd
> > > just need to replace yaws api calls with the corresponding ewgi
> calls.
> > This should be easy.
> > A problem might be ewgi missing support for yaws opaque data. Is it
> > required from erlyweb?
> > A solution might be using parametrized modules, but I was also
> thinking
> > to add some specialized field in ewgi environment to pass data to
> > applications.
>
> The opaque data is required because ErlyWeb (and sometimes application
> code) uses it to store arbitrary app metadata. I don't see a way
> around it.
>
> It seems like there are two separate issues here -- configuration
> for erlyweb which is bubbled up from the server, and opaque data
> that is used by erlyweb or an application written in erlyweb.
>
>
> yaws_arg:appmoddata() currently stores the former, yaws_arg:opaque()
> stores the latter.
>
> erlyweb should own the opaque functionality, i think the only thing
> missing right now is the ability for ewgi to send erlyweb
> configuration.
>
> the only problem i'm having is that this isn't exactly *only*
> relying on ewgi -- I'm writing an interface for yaws, yaws+ewgi ,
> and it'd also need mochiweb + ewgi. I kind of coded myself into a
> knot. The code that Fillipo suggested has the same problem -- there
> needs to be a special interface for both mochiweb and yaws in order
> for erlyweb to use the generic ewgi interface :-/
I think we need 3 APIs: HTTP request handling, application
configuration, and application deployment. ewgi, as it stands right
now, only provides the first one. I think its obvious that we want
these kinds of generic APIs outside of erlyweb proper. Do they belong
in ewgi?
--Kevin
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