Django/Python/toDataURL return a response with the string from toDataURL

Question

I have saved in a database a string return by the javascript method toDataURL. An exemple is available here: http://pastebin.com/0Qu8rngD

I need to return the image in a django response. Something like:

return HttpResponse(image, mimetype='image/png')

I have tried many methods with base64decode, urlsafe_b64decode, Image ... with no success. The navigator does not display the image, it can't read the response data.

Of course I can display my image in a HTML page with <img src="{{image}}">, it works well.

score 5 · Accepted Answer · answered Jul 26 '14 at 14:00

5

The image is base64 encoded in the data uri; decode the image first:

import base64

...    

data_uri = 'data:...'
image_data = data_uri.partition('base64,')[2]
binary = base64.b64decode(image_data)
return HttpResponse(binary, mimetype='image/png')

answered Jul 26 '14 at 14:00

Antti Haapala -- Слава Україні

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Instead of importing `base64`, we could use shorter `image_data.decode('base64')`. Anyway, +1 for being faster =) – okm Jul 26 '14 at 14:08
Thank you, it's perfect, partition() is the solution ! – Jonathan Le Cornichone Jul 26 '14 at 14:18
Sure.. Just hope I have another +1 slot. – okm Jul 26 '14 at 14:21

Django/Python/toDataURL return a response with the string from toDataURL

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