如何将filepicker.io与谷歌应用程序引擎（blobstore）集成？ [英] How do I integrate filepicker.io with google app engine (blobstore)?

问题描述

所以我试图在GAE应用程序中使用filepicker.io。 filepicker小部件返回用户上传文件的URL。

然后，我如何使用此URL将文件上传到GAE的blobstore？

blobstore只支持通过表单上传文件，所以真正的问题是如何伪造一个包含文件URL的表单POST。

解决方案

伪造表单帖子是可能的，但使用 Files API

编辑：

b $ b

要使用带有urlfetch的File API，可以这样写： $ _
$ b

  from __future__ import with_statement 
 from google.appengine.api从google.appengine.api导入文件
导入urlfetch 
 $ b $ url url =http://www.facebook.com/somephoto.png
 result = urlfetch.fetch（url）
如果result.status_code不是200：
 returnsome错误
 
＃创建文件
 file_name = files.blobstore.create（mime_type ='application / octet-stream'）
 
＃打开文件并写入到它
与files.open（file_name，'a'）作为f：
 f.write（result.content）
 
＃完成文件。在尝试阅读之前先做这件事。 
 files.finalize（file_name）
 
＃获取文件的blob键
 blob_key = files.blobstore.get_blob_key（file_name）
  

我没有测试过这个 - 所以如果这不起作用，请告诉我。

另外，我相信您可以将mime_type保留为application / octet-stream，App Engine会尝试猜测正确的类型。如果这不起作用，请尝试将其更改为image / png。或者，对于pdf，mime类型将是'application / pdf'

So I'm trying to use filepicker.io with a GAE application. The filepicker widget returns the URL of the file that a user uploaded.

How do I then use this url to upload the file to GAE's blobstore?

The blobstore only supports "file uploading through a form", so the real question is how to fake a form POST containing the URL of a file.

解决方案

Faking a form post is possible, but it's much simpler to use the Files API

Edit:

To use the File API with urlfetch you would write something like this:

from __future__ import with_statement
from google.appengine.api import files
from google.appengine.api import urlfetch

url = "http://www.facebook.com/somephoto.png"
result = urlfetch.fetch(url)
if result.status_code not 200:
  return "some error"

# Create the file
file_name = files.blobstore.create(mime_type='application/octet-stream')

# Open the file and write to it
with files.open(file_name, 'a') as f:
  f.write(result.content)

# Finalize the file. Do this before attempting to read it.
files.finalize(file_name)

# Get the file's blob key
blob_key = files.blobstore.get_blob_key(file_name)

I haven't tested this - so if this doesn't work, let me know.

Also, I believe you can leave the mime_type as 'application/octet-stream' and App Engine will try and guess the proper type. If that doesn't work try changing it to 'image/png'. Or for a pdf the mime type would be 'application/pdf'

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