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| jeffm |
 Posted: Mon Apr 19, 2010 3:16 am |
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User
Joined: 29 Sep 2008
Posts: 43
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Is it possible to stream data from, or to trigger streaming from a
controller model in erlang-web? The motivation behind this is that in a
test project I'm playing around with I have large (static) files which
should only be accessible once you authenticate as a user which is
allowed access to these files. Standard stuff really. Copying these
large files into memory in one block to send to the browser is wasteful
of memory. A quick inspection of the doco for both inets and yaws says
that they support this feature, but I can't find the doco on the allowed
return values for the controller modules. If I've missed it please point
me to it.
Jeff.
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| mich569 |
| Posted: Mon Apr 19, 2010 7:24 am |
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Joined: 21 Jul 2008
Posts: 2
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Hi Jeffm,
Here is the link to controller return-tuples doc: http://wiki.erlang-web.org/Eptic/ServerTuples.
There is one called {custom, Val} and using it lets you return anything accepted by the server (Val will go directly to HTTP server).
However, once I migrated old system (written in yaws) to ErlangWeb, and there was already yaws module for streaming, so I simply check authorization and set a session on ErlangWeb side and then redirected to yaws module (to do it you need also another appmod defined for this module).
----- "Jeffm" <jeffm@ghostgun.com> wrote:
> Is it possible to stream data from, or to trigger streaming from a
> controller model in erlang-web? The motivation behind this is that in
> a
> test project I'm playing around with I have large (static) files which
>
> should only be accessible once you authenticate as a user which is
> allowed access to these files. Standard stuff really. Copying these
> large files into memory in one block to send to the browser is
> wasteful
> of memory. A quick inspection of the doco for both inets and yaws says
>
> that they support this feature, but I can't find the doco on the
> allowed
> return values for the controller modules. If I've missed it please
> point
> me to it.
>
> Jeff.
>
>
> ------------------------------------------------------------------------------
> Download Intel® Parallel Studio Eval
> Try the new software tools for yourself. Speed compiling, find bugs
> proactively, and fine-tune applications for parallel performance.
> See why Intel Parallel Studio got high marks during beta.
> http://p.sf.net/sfu/intel-sw-dev
> _______________________________________________
> Erlangweb-users mailing list
> Erlangweb-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/erlangweb-users
> http://www.erlang-web.org/
--
Michal Zajda
Erlang Solutions Ltd.
http://www.erlang-solutions.com
---------------------------------------------------
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Since January 1st 2010 Erlang Training and Consulting Ltd. has become ERLANG SOLUTIONS LTD.
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Download Intel® Parallel Studio Eval
Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
See why Intel Parallel Studio got high marks during beta.
http://p.sf.net/sfu/intel-sw-dev
_______________________________________________
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https://lists.sourceforge.net/lists/listinfo/erlangweb-users
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| jeffm |
| Posted: Mon Apr 19, 2010 12:40 pm |
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User
Joined: 29 Sep 2008
Posts: 43
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Just a quick reply. I'll have to look at that page tomorrow obviously
missed it in my search. I found the tuples in the source code by
grepping for "{template" after I sent the email and saw the {custom,
Val} option, but figured that there must be another option that I was
missing. As elrlangweb supports different web servers including those
that support ewgi I thought that there might be a server independent
manner in which to do things. Is such a thing planned?
As I said above just a quick reply hope it makes sense.
Jeff.
Michal Zajda wrote:
> Hi Jeffm,
>
> Here is the link to controller return-tuples doc: http://wiki.erlang-web.org/Eptic/ServerTuples.
>
> There is one called {custom, Val} and using it lets you return anything accepted by the server (Val will go directly to HTTP server).
>
> However, once I migrated old system (written in yaws) to ErlangWeb, and there was already yaws module for streaming, so I simply check authorization and set a session on ErlangWeb side and then redirected to yaws module (to do it you need also another appmod defined for this module).
>
>
>
>
------------------------------------------------------------------------------
Download Intel® Parallel Studio Eval
Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
See why Intel Parallel Studio got high marks during beta.
http://p.sf.net/sfu/intel-sw-dev
_______________________________________________
Erlangweb-users mailing list
Erlangweb-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/erlangweb-users
http://www.erlang-web.org/
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