Downloaded filename with Google App Engine Blobstore

Question

I\'m using the Google App Engine Blobstore to store a range of file types (PDF, XLS, etc) and am trying to find a mechanism by which the original filename of the uploaded file -

Answer 1

Another option is to append the file name to the end of the download URL. For example:

/files/AMIfv95HJJY3F75v3lz2EeyvWIvGKxEcDagKtyDSgQSPWiMnE0C2iYTUxLZlFHs2XxnV_j1jdWmmKbSVwBj6lYT0-G_w5wENIdPKDULHqa8Q3E_uyeY1gFu02Iiw9xm523Rxk3LJnqHf9n8209t4sPEHhwVOKdDF2A/prezents-list.doc

If you use Jinja2 for templating, you can construct such an URL like this:

{{file.filename}}

then you should adapt your URL mapping accordingly to something like this:

('/files/([^/]+)/?.*', DownloadHandler)

If you have the blob key in the URL, you can ignore the file name in your server-side code.

The benefit of this approach is that content types like images or PDF open directly in the browser, which is convenient for quick viewing. Other content types will just be saved to disk.