How can i access Buckets from a Google AppEngine App

[MarcoCanali]

Ok, i've a simple php page on google appengine with the code in the google PHP doc : 

function accessGS(){

    $options = [ "gs" => [ "Content-Type" => "text/plain" ]];

    $ctx = stream_context_create($options);

    file_put_contents("gs://mybucket/myFile.txt", "Hello", 0, $ctx);

    return file_get_contents("gs://mybucket/myFile.txt");

  }

and i received the error : 

Warning: Access Denied in /base/data/home/runtimes/php/sdk/google/appengine/ext/cloud_storage_streams/CloudStorageWriteClient.php on line 116

Warning: file_put_contents(gs://meteo/HelloWorld.txt): failed to open stream: "\google\appengine\ext\cloud_storage_streams\CloudStorageStreamWrapper::stream_open" call failed in .... 

Warning: Cloud Storage Error: FORBIDDEN in /base/data/home/runtimes/php/sdk/google/appengine/ext/cloud_storage_streams/CloudStorageReadClient.php on line 285 Warning: file_get_contents(gs://meteo/HelloWorld.txt): failed to open stream: "\google\appengine\ext\cloud_storage_streams\CloudStorageStreamWrapper::stream_open" call failed in /base ... 

What does i need for authenticate my simple PHP page on GAE for access data on GS ?? 

[Vinny P]

On Wed, Nov 20, 2013 at 11:02 AM, MarcoCanali <marco....@gmail.com> wrote:

What does i need for authenticate my simple PHP page on GAE for access data on GS ?? 

You need to tell the GCS bucket that your application is allowed access to it. I wrote up a short demonstration at http://learntogoogleit.com/post/54528163872/setting-permissions-to-access-cloud-storage-from-app a few months ago but the basic idea is to go to the bucket's Bucket Permissions page, then grant access by typing in (your application id) @ appspot . gserviceaccount . com into the textbox prompt.

 

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-Vinny P

Technology & Media Advisor

Chicago, IL

App Engine Code Samples: http://www.learntogoogleit.com