How to write Big files into Blobstore using experimental API?

Question

I have dilemma.. I\'m uploading files both in scribd store and blobstore using tipfy as framework. I have webform with action is not created by blobstore.create_upload_url (

Answer 1

finally i found solution.

Nick Johneson's answer occurred attribute error because uploaded_file is treated as string. string didn't have read() method.

Cause string doesn't have method read(), i spliced file string and write it just like he wrote.

class UploadRankingHandler(webapp.RequestHandler):
  def post(self):
    fish_image_file = self.request.get('file')

    file_name = files.blobstore.create(mime_type='image/png', _blobinfo_uploaded_filename="testfilename.png")

    file_str_list = splitCount(fish_image_file,65520)

    with files.open(file_name, 'a') as f:
      for line in file_str_list:
        f.write(line)

you can check about splitCount(). here

http://www.bdhwan.com/entry/gaewritebigfile

Answer 2

You need to make multiple, smaller calls to the file API, for instance like this:

with files.open(file_name, 'a') as f:
    data = uploaded_file.read(65536)
    while data:
      f.write(data)
      data = uploaded_file.read(65536)

Note that the payload size limit on regular requests to App Engine apps is 10MB; if you want to upload larger files, you'll need to use the regular blobstore upload mechanism.