The simplest upload option is the POST object call to the XML API <https://cloud.google.com/storage/docs/xml-api/post-object>, which accepts form data and allows you to upload a file without any JavaScript using just a <form> tag with the 'action=' attribute set to the Cloud Storage API Endpoint, eg.
<form action="http://<my-bucket>.storage.googleapis.com"> ... You can of course use an XHR in JavaScript to post the form as well. Authentication for this type of upload is done using a policy document, which is described in the Usage and Examples <https://cloud.google.com/storage/docs/xml-api/post-object#usage_and_examples> section of the documentation along with Python code examples and an example HTML form. A cleaner approach is to use the Google API JavaScript Client Library <https://developers.google.com/api-client-library/javascript/start/start-js> to upload the file using the JSON API <https://cloud.google.com/storage/docs/json_api/>. There's a JavaScript example on the googlearchive GitHub page <https://github.com/googlearchive/> called storage-getting-started-javascript <https://github.com/googlearchive/storage-getting-started-javascript/blob/master/index.html> which I still use as a reference, and is still updated. This will show you how to do a multipart upload <https://cloud.google.com/storage/docs/json_api/v1/how-tos/multipart-upload>, which is sufficient for most files under 5MB. Authentication for this is done using OAuth and is handled by the GAPI client. If you need resumable uploads, it's not too much work to adapt the concepts in Performing a Resumable Upload <https://cloud.google.com/storage/docs/json_api/v1/how-tos/resumable-upload>, which give raw HTTP examples, to the above code example. If you need to do some kind of authentication outside of Google OAuth, you can look into Signed URLs <https://cloud.google.com/storage/docs/access-control/signed-urls>. The documentation also provides Python code samples for generating them <https://cloud.google.com/storage/docs/access-control/create-signed-urls-program>. Uploading to a signed URL works mostly the same way as for regular GCS URLs, with some differences that are covered in the docs. On Monday, February 20, 2017 at 10:47:26 AM UTC-5, Richard Cheesmar wrote: > > I am using the standard python app engine environment and currently > looking at how one goes about uploading multiple large media files to > Google Cloud Storage (Public Readable) using App Engine or the Client > directly (preferred). > > I currently send a bunch of smaller images (max 20 - between 30 and 100k > on average), at the same time directly via a POST to the server. These > images are provided by the client and put in my projects default bucket. I > handle the requests images using a separate thread and write them one at a > time to the cloud and then associate them with an ndb object. This is all > fine and dandy when the images are small and do not cause the request to > run out of memory or invoke a DeadlineExceededError. > > But what is the best approach for large image files of 20mb+ a piece or > video files of up to 1GB in size? Are there efficient ways to do this from > the client directly, would this be possible via the Json api ,a resumable > upload, for example? If so, are there any clear examples of how to do this > purely in javascript on the client? I have looked at the docs but it's not > intuitively obvious at least to me. > > I have been looking at the possibilities for a day or two but nothing hits > you with a clear linear description or approach. I notice in the Google > Docs there is a way using PHP to upload via a POST direct from the client... > https://cloud.google.com/appengine/docs/php/googlestorage/user_upload...Is > this just relevant to using PHP on app engine or is there an equivalent to > createUploadUrl > for python or javascript? > > > Anyway, I'll keep exploring but any pointers would be greatly appreciated. > > > Cheers > > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. Visit this group at https://groups.google.com/group/google-appengine. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/5e237918-875f-46b6-b18f-133968af5bc5%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
