[Dancer-users] recommended way to return large dynamic data?

[Assaf Gordon]

sawyer x wrote, On 10/17/2012 04:10 PM:
> On Wed, Oct 17, 2012 at 10:02 PM, Assaf Gordon <gordon at cshl.edu <mailto:gordon at cshl.edu>> wrote:
> 
> 
>     Several people suggested "send_file" (on and off the mailing list),
>     but from what I gathered, "send_file" requires either a physical file (which I don't have),
>     or a scalar-ref containing the entire buffer to be sent (which I don't have).
> 
>     I couldn't find a working example of using "send_file" while dynamically generating the output.
> 
> 
> True. This is not really supported well in Dancer. The stream support was added for streaming an actual file. The fact that we can fake files from in-memory scalars is just an added benefit. :)
> 

Got it to work. Thanks to everyone who helped.

See a working demo here:
 http://cowbell.cancan.cshl.edu/dispatch.cgi/dynamic_content

and the code here:
 https://github.com/agordon/dancer_bootstrap_fontawesome_template/blob/master/lib/examples/dynamic_content.pm

Hope this will save some time for other people.

> 
>     Also, I'm using apache as a front-end, and I'm not sure about the "streaming" capabilities of the apache/psgi/plack/dancer stack in this situation - would it work ?
> 
> 
> I'm not sure. I know that almost no servers (including Apache) support non-buffered file uploads, for example, so even if Dancer supports it (and it will), the servers will buffer it completely for you. I'm not sure how it is on downloads though.