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How can I check whether I have already enqueued a task before?
I would add a tag to the task then do a lease_task_by_tag with a lease_seconds set to 0. If its empty then I can safely create a new one.

Categories : Google App Engine

Does AWS have an image processing service?
No they don't have an image processing service. They do have transcoding services for audio and video, though: http://docs.aws.amazon.com/elastictranscoder/latest/developerguide/introduction.html But that's not what you are looking for. The closest you can get to that with AWS is probably by creating your own on-demand instance which can process a batch of images and then stops again. Or maybe ha

Categories : Google App Engine

Error when trying to insert an element to gcloud DB on App Engine with Dart
At the moment, package:appengine only allows one to call API services inside a request handler: Each request handler invocation will get a new set of services. This allows package:appengine to give each request handler e.g. a different logging service instance. This allows all logging API calls to be grouped by request. The way this is achieved in dart / package:appengine is by using Zones. For

Categories : Google App Engine

Security between Google App Engine projects
Not tested, but I thought application itself is admin, so how about like this? Add login: admin to all handlers in app.yaml Go to Google Developer Console, project -> Permissions, then Add project account which you want to communicate with into service accounts. I hope it works.

Categories : Google App Engine

How to upload media (image, video) to Google Cloud Storage with Java
Upload/Download files: you can use the Blobstore API which can be configured to store blobs in Google Cloud Storage by specifying your bucket in the BlobstoreService createUploadUrl. Similarly, to download you can create a createGsBlobKey with the Bucket name + Object name which can then be served by the Blobstore service. Create/Delete buckets: The Google Cloud Storage Java Client Library does n

Categories : Google App Engine

Error adding member to a google api project (developer console)
Looks like it isn't possible: Because multiple sign-in is not supported, you will access Google Developers as your default account, username@gmail.com. It is possible if you don't use sub-accounts! I got it working! Instead of having me@mydomain.com as a sub-account of username@gmail.com, I had to remove me@mydomain.com from username@gmail.com, then create a new completely separate google a

Categories : Google App Engine

Using gcloud-python in GAE
GAE on your Mac can't access Python packages installed in the default place on your Mac. You need to do this: ln -s /Library/Python/2.7/site-packages/.../gcloud /Users/sheridangray/Projects/city-pulse-web/gcloud (need to replace ... with the relevant path info)

Categories : Google App Engine

Indexes in Google Datastore
You can at any time change the definition of an entity object, the important thing is whether the property is set to be indexed when you put(). Say I have inserted a bunch of objects with a "name" property, un-indexed. Later I add an index to future put()'s on those entities. All my entities will still be in the datastore, just the ones that were indexed are query-able. A similar logic applies whe

Categories : Google App Engine

When did Google index a page?
You can use this pattern to access the cached version of your webpage. http://webcache.googleusercontent.com/search?q=cache:<URL> Say for example, you can see the cache version of my blog datafireball.com like this, as you can see, it is indexed 20141020, 23:33:30, strip= will avoid loading javascript, css..etc. To get the time when the indexed was index, you can use some browser automat

Categories : Google App Engine

appengine backup to GCS versus blobstore
Honestly, now that they both have the same basic quota and paid limitations, I don't think there is much of a difference between both. It's going to be mostly how you access/do calls on both. For the blobstore, there is a nifty API (in Python or in Java) For Google Cloud Storage, you need to get the client library and add it to your project before using it (again, in Python or in Java) At this

Categories : Google App Engine

How to get image Type and size when uploading it ? google app engine
If you add enctype="multipart/form-data" to your form element, you can use the image data to instantiate an Image object using code like the following: (pay particular attention to the way the mime-type is extracted and split to detect valid image formats, and the fact that we're using the google.appengine.api.images class Image to extract the dimensions after using the constructor and passing th

Categories : Google App Engine

Appengine search language
I'm not sure what exactly your question is but here you can see that what you think (It seems that python devserver handles empty language field as an error.) is not true. Code snippet from that documentation type Field struct { // Name is the field name. A valid field name matches /[A-Z][A-Za-z0-9_]*/. // A field name cannot be longer than 500 characters. Name string // Value is

Categories : Google App Engine

Ignore field at runtime in Objectify
There is no mechanism to do this at present. The best answer is probably to use something like the maven shade plugin to include com.googlecode.objectify.annotation.* with the shard lib.

Categories : Google App Engine

How to set targeted Modules for specific URL in AppEngine + Java
From App Engine documentation: The following code sample demonstrates how to create a push task addressed to instance 1 of a module named backend1, using the target directive: import com.google.appengine.api.taskqueue.Queue; import com.google.appengine.api.taskqueue.QueueFactory; import static com.google.appengine.api.taskqueue.TaskOptions.Builder.*; import com.google.appengine.api.back

Categories : Google App Engine

Communicating between App Engine, Compute Engine, and Cloud SQL
For the IP that you need to add to the authorized networks in Cloud SQL, if it's a single instance being spin up, you can use an static IP address, although there's a charge for it. You can also use the API Instances:get to get the IP address of your new instance, so when destroying the instance you can remove it from the authorized network. You can use the Cloud SQL API to update the networks.

Categories : Google App Engine


Recently Add
How to search structured properties ? google app engine
How can I check whether I have already enqueued a task before?
Does AWS have an image processing service?
Error when trying to insert an element to gcloud DB on App Engine with Dart
Security between Google App Engine projects
How to upload media (image, video) to Google Cloud Storage with Java
Error adding member to a google api project (developer console)
Using gcloud-python in GAE
Indexes in Google Datastore
When did Google index a page?
appengine backup to GCS versus blobstore
How to get image Type and size when uploading it ? google app engine
Appengine search language
Ignore field at runtime in Objectify
How to set targeted Modules for specific URL in AppEngine + Java
Communicating between App Engine, Compute Engine, and Cloud SQL
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