CODEWITHSUNDEEP
pythondjangodownload
Marcus Grass
Marcus Grass

Reputation: 1083

Downloading a file using Django

I'm trying to enable the downloading of previously uploaded files in Django, here's the code I'm using so far:

def downloadview(request):
    path=os.path.join('media', 'files', '5560026113', '20180412231515.jpg' )
    response = HttpResponse()
    response['Content-Type']=''
    response['Content-Disposition'] = "attachment; filename='Testname'"
    response['X-Sendfile']=smart_str(os.path.join(path))
    return response

The inspiration for this trial comes from this thread but I don't get it working. An empty txt file is downloaded instead of the image that is stored on the server. In this trial code the exact filename and extension is hard coded in the path variable.

Upvotes: 1

Views: 3797

Answers (1)

Bob
Bob

Reputation: 6173

Here is a way you can serve a file through Django (although it is usually not a good approach, the better one is to serve files with a webserver like nginx etc - for performance reasons):

from mimetypes import guess_type
from django.http import HttpResponse

file_path=os.path.join('media', 'files', '5560026113', '20180412231515.jpg' )

with open(file_path, 'rb') as f:
    response = HttpResponse(f, content_type=guess_type(file_path)[0])
    response['Content-Length'] = len(response.content)
    return response

guess_type infers the content_type from the file extension. https://docs.python.org/3/library/mimetypes.html

more on HttpResponse here: https://docs.djangoproject.com/en/2.0/ref/request-response/#django.http.HttpResponse

And here is why it is not recommended to serve files through Django, although not recommended just means that you should probably understand what you are doing: https://docs.djangoproject.com/en/2.0/howto/static-files/deployment/

Upvotes: 4

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