How to upload a file with django (python) and s3?
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11-07-2019 - |
Question
I'm looking for a way to upload a file to s3. I am using django. I am currently using amazon's python library for uploading along with the following code:
View:
def submitpicture(request):
fuser = request.session["login"]
copied_data = request.POST.copy()
copied_data.update(request.FILES)
content_type = copied_data['file'].get('content-type')
ffile = copied_data['file']['content']
key = '%s-%s' % (fuser, ''.join(copied_data['file']['filename'].split(' ')))
site_s3.save_s3_data(key, ffile, content_type)
Template:
<form action="/submitpicture/" method="POST">
<input type="file" id="file" name="file" />
<input type="submit" value="submit" />
</form>
However, when I actually try to run it i get the following error:
"Key 'file' not found in <QueryDict: {}>"
#MultiValueDictKeyError
I really don't see what I'm doing wrong. Can someone point me in the right direction?
Edit: Just in case someone wonders, I am planning on adding some validation after I get the actual upload working.
Solution
You will have to provide the enctype attribute to the FORM element (I've been bitten by this before). For example, your FORM tag should look like:
<form action="/submitpicture/" method="POST" enctype="multipart/form-data" >
Without the enctype, you will find yourself with an empty request.FILES.
OTHER TIPS
Instead of doing this manually I would take a look at the storage backend David Larlet has written for Django, django-storages
Adding enctype="multipart/form-data" seems like something that's worth mentioning in the "File Uploads" section of the django docs (http://docs.djangoproject.com/en/dev/topics/http/file-uploads/). Thoughts?