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    <p>Since the Task Queue task will be spawned by your application, none of the headers from your original request will be sent through. In particular, the <code>Cookies</code> header identifying your user via the <code>SACSID</code> cookie for your application (provided by the App Engine Users API).</p> <p><strong>UPDATE: (This was added after the original post.)</strong> As a result of no cookies, the <code>SACSID</code> cookie identifying the user won't be there, hence the <code>decorator.oauth_required</code> designation will force a redirect (which is HTTP <code>302</code>) <strong>EVERY</strong> time the cron job runs.</p> <p>Instead of trying to get the current user from the decorator, you are better off passing along the App Engine User ID to your task. First get the current user (within your decorated method):</p> <pre><code>from google.appengine.api import users # Guaranteed not to be None by the decorator current_user = users.get_current_user() </code></pre> <p>and then pass along the App Engine User ID in the task</p> <pre><code>import urllib query_string = urllib.urlencode({'user_id': current_user.user_id()}) taskqueue.add(url='/updateworker?' + query_string) </code></pre> <p>Then within your task, you can retrieve grab that <code>user_id</code></p> <pre><code># This is the 'user_id' you appended in the query string user_id = self.request.get('user_id') </code></pre> <p>and use it to get that user's credentials <a href="https://code.google.com/p/google-api-python-client/source/browse/oauth2client/appengine.py?r=ae2ff74e239820776304fadcba8f9b476efd913b#692" rel="noreferrer">as is done in the decorator</a>:</p> <pre><code>from oauth2client.appengine import CredentialsModel from oauth2client.appengine import StorageByKeyName # This assumes you are using the defaults for OAuth2Decorator, # which your above code is credentials = StorageByKeyName( CredentialsModel, user_id, 'credentials').get() </code></pre>
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    1. POHow to do OAuth-requiring operations in a GAE Task Queue?
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    1. POHow to do OAuth-requiring operations in a GAE Task Queue?
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    1. COThat worked, thanks again! Which opens the door for a new question: manually opening `/update` works, but now I'd like to schedule a cron task querying it every night. I guess that means using `users.get_current_user()` is not possible and that I must cache it?
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      1. USRonan Jouchet
    2. COFirst, you should put this in your question or ask a new one. If you want the cron job to run as a specific user, you can just hardcode the user_id into the script. If you want it to run for all users, you can do a query from `CredentialsModel` for all stored credentials and then spawn a task for each user.
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    3. COYes sorry. I'm already asking a lot, so I thought I'd just wrap that question here, which was indeed a bad idea. I tried your suggestion, but my cron task always fails; I'm following up with a proper new question: [How to do OAuth-requiring operations in a GAE cron job?](http://stackoverflow.com/questions/16863661/how-to-do-oauth-requiring-operations-in-a-gae-cron-job)
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