Blobstore files (which can be larger than 10 MB) are uploaded to the upload URL you generate using the API. They're served (full size), at a URL you get from the API.
The 30 second limit is irrelevant for the upload/download; this limit only applies to time your code is running, and not to transfer time. In any case, your code isn't involved in the upload or download from the blobstore, except to give the user's browser the URL to use and after the upload in your callback handler. The 1MB API call limit is only relevant if your code needs to read data in the blobstore. In general, this shouldn't be necessary, but it can be used if, e.g., you want to allow users to upload data files larger than 10MB and do some sort of processing of them. In this case, you can process them in 1MB chunks, probably through chaining task queue tasks. On Jul 25, 5:08 am, ww34ww34 <ww34w...@gmail.com> wrote: > I find in three different places three different limit for blob store. > > in the overview of blob store > > maximum object > size > 2 gigabytes > maximum size of Blobstore data that can be read by the app with one > API call 1 megabyte > > In the javadoc > > blobkey:BlobKey contains the string identifier of a large (possibly > larger than 1MB) blob of binary data that was uploaded > > and after some line at the end of the page > > The blobstore API provides management and persistent storage of large, > immutable blobs. This allows applications to accept, save, and later > serve files larger than the existing 10MB request limit. > > I'm little confused about this limits.. > If i want to upload a file of 2 Gb how i can do this?I have a dedline > of 30 seconds and api call limit of 1MB. > and how a can retrive a file that has size bigger than 10MB request > limit? > > And at the end, the only way to upload a file is throught a form? > Thank's for answers... -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
