title: Zend GData upload file into a specific folder
body: <p>I am trying to upload a file into a specific folder. I have the folder URI so I pass that as the URI in uploadFile function in Zend API.</p>
  
  <p>However, I end up getting a 401 error. </p>
  
  <p>This code works and uploads the file to the base of Google docs:</p>
  
  <pre><code>$newDocumentEntry = $docs-&gt;uploadFile($filePath, $documentTitle, null, Zend_Gdata_Docs::DOCUMENTS_LIST_FEED_URI);
  </code></pre>
  
  <p>how do I create a URI that uploads it to a specific folder?</p>
  
  <hr>
  
  <p>I am really strugling with this issue. I have tried everything I can think of to create a valid URI for specific folder but I always get the following error msg:  </p>
  
  <pre><code>Expected response code 200, got 400
  Invalid request URI 
  </code></pre>
  
  <p>does anyone have any suggestions?</p>