[Flask] Serving a file to downalod AND print message on screen

[Ulrich Berthold]

hey abhinav,


On Tue, Nov 21, 2017 at 07:30:02PM +0000, Kumar, Abhinav wrote:
> Thanks for your thoughts.
> 
> I can serve the file if I put it in 'static' folder, but not in 'upload' folder.
> I guess 'static' is exposed by default.
> I am not sure how to expose any other folder like 'upload'.
did you have a look at the fileupload pattern?
http://flask.pocoo.org/docs/0.12/patterns/fileuploads/

it does exactly what you want, upload a file to a configurable upload
folder and consequently serve the file from that location.

hope that helps .. all the best,
ub


> Thanks,
> Abhinav
> 
> 
> ________________________________
> From: Flask [flask-bounces+akumar=intrexon.com at python.org] on behalf of sidwoodstock . [sidwoodstock at gmail.com]
> Sent: Tuesday, November 21, 2017 9:35 AM
> To: flask at python.org
> Subject: Re: [Flask] Serving a file to downalod AND print message on screen
> 
> Just some thoughts:
> 
> - Verify file is truly placed in /uploads/
> - Verify your file server is exposing your uploads directory.
> - You can move around the code in your template which shows flashed messages, perhaps move it to a place which gets called when you want.
> 
> To truly help with the uploads / file not found issue, it'd be helpful to know what other packages you're using.
> 
> 
> Scott Woodstock
> 
> 
> 
> On Fri, Nov 17, 2017 at 9:00 AM, <flask-request at python.org<mailto:flask-request at python.org>> wrote:
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>    1. Re: Serving a file to downalod AND print message on screen
>       (Geert Stappers)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Thu, 16 Nov 2017 21:16:10 +0100
> From: Geert Stappers <stappers at stappers.nl<mailto:stappers at stappers.nl>>
> To: flask at python.org<mailto:flask at python.org>
> Subject: Re: [Flask] Serving a file to downalod AND print message on
>         screen
> Message-ID: <20171116201610.GX21385 at gpm.stappers.nl<mailto:20171116201610.GX21385 at gpm.stappers.nl>>
> Content-Type: text/plain; charset=us-ascii
> 
> On Wed, Nov 15, 2017 at 05:47:19PM +0000, Kumar, Abhinav wrote:
> > Hi,
> >
> > After I process some data, I want to write log output to the screen and let user download the results as a zip file.
> >
> > I tried flash, but that does not print message until the app is executed next time.
> >
> > I can't possible use two return statements (one for send_file for download and other for rendering a template).
> >
> > I could use only template rendering and provide a link to download the results file in the template html file, but that link says 'file not found'...
> >
> > In my template file I have code like
> >     Please download the result  <a href=/upload/results.zip>here</a>
> > And I place the results.zip file in "upload" folder before calling render_template.
> >
> > But the app says "The requested URL was not found on the server"
> > The URL it points to is "http://akumar-linux2:5000/upload/results.zip"
> >
> 
> FWIW   I read above _two_ problems:
>  * URL not found
>  * wanting to write to screen
> 
> 
> Advice: Start with fixing the "URL not found".
> 
> 
> 
> 
> 
> Groeten
> Geert Stappers
> Seen both postings from original poster, replying on one.
> --
> Leven en laten leven
> 
> 
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