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Questions tagged [blobstore]

A storage API used for binary data storage, eg. Google App Engine blobstore service.

A storage API used for binary data storage:

  1. Google App Engine blostore
846 questions
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7 answers

What is it exactly a BLOB in a DBMS context

What is it a BLOB? How can I use it? What are the differences between DBMS's BLOBs. I would like to save data using BLOBs into any DBMS and then read that BLOB with a library.
edgarmtze
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3 answers

Google Blobstore versus Google Cloud Storage

We have our application hosted on Google app engine for Java and we have a requirement where we want to store the blood donor appreciation certificates (html files) somewhere. So, we can use either Google Blobstore or Google Cloud Storage. I know…
Vik
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3 answers

simple HttpURLConnection POST file multipart/form-data from android to google blobstore

I have very little idea how html works.What i want to do is exactly similar to the following but on android
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Flying Monkey
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9 answers

How to clean an Azure storage Blob container?

I just want to clean (dump, zap, del .) an Azure Blob container. How can I do that? Note: The container is used by IIS (running Webrole) logs (wad-iis-logfiles).
Néstor Sánchez A.
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3 answers

using blobstore with google cloud endpoint and android

I am developing an app-engine connected android project using the eclipse plugin. One aspect of the app is to allow user Alpha to send pictures to user Bravo. To do that I have the following setup: User Alpha posting: send image to my app engine…
Pouton Gerald
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1 answer

Store Photos in Blobstore or as Blobs in Datastore - Which is better/more efficient /cheaper?

I have an app where each DataStore Entity of a specific kind can have a number of photos associated with it. (Imagine a car sales website - one Car has multiple photos) Originally since all the data is being sourced from another site, I was limited…
Joe Bourne
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1 answer

GAE Must call one of set*BlobStorage() first

I have searched through google, stackoverflow, and other sources too. But no luck so far. I am developing an application for GAE with Java at backend and android at other end. Now server is setup on local machine, and it is being accessed by android…
Pavan Jaju
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3 answers

How to add javax.activation.DataSource to App Engine devserver?

tl;dr: How do I add the javax.activation.DataSource dependency to a server run through the App Engine Maven plugin? I'm using the App Engine Maven plugin to deploy to a local App Engine server, and I'm trying to use the Blobstore API to upload a…
Kevin Workman
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0 answers

Blobstore upload redirects to wrong module

The Problem When uploading a file using the Go Blobstore API, the success path redirects to the wrong appengine module. Here is a more visual description of the problem: User lands on the upload page of module A:…
Jonathan Azoff
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3 answers

Decode an App Engine Blobkey to a Google Cloud Storage Filename

I've got a database full of BlobKeys that were previously uploaded through the standard Google App Engine create_upload_url() process, and each of the uploads went to the same Google Cloud Storage bucket by setting the gs_bucket_name argument. What…
adam
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2 answers

How to write Big files into Blobstore using experimental API?

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 (i'm just using url_for('myhandler')). I did it because if i'm using blobstore…
minus
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3 answers

Store image to Blobstore from android client and retrieve blobkey and upload url to store in Datastore. - GAE

In my Android application, I want to upload image to the Blobstore, then retrieve an Upload url and the image's Blobkey, so I can store the Blobkey in the DataStore. I've tried this code, but my image isn't uploading: Servlet (Return upload…
Zankhna
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2 answers

Video files conversion/transcoding Google App Engine

I want to start a cloud computing project with the simple task to: Receive uploaded video files Do some transcoding / converting to them Allow user to download / stream the generated file I was thinking ffmpeg as an external command line tool…
Vasilis
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2 answers

Cost of storing a file in Datastore vs Blobstore

Question: Since every file in the blobstore has an associated BlobInfo entity in the datastore, do I get charged the cost of write/read of that entity just like any other datastore entity? Background: We store millions of images on App Engine, and…
Waleed Abdulla
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4 answers

Downloaded filename with Google App Engine Blobstore

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 - as stored in blob_info - can be used to name the downloaded file i.e. so…
notreadbyhumans
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