title: Getting owner/creator information for a list using Sharepoint REST API
body: <p>Using the Sharepoint REST API, I am able to get "Author" (which I take as owner/creator info) information for both Files and Folders.  For Files, I can simply expand the "Author" element and get Title and UserId information.  For Folders, I have to use the "AuthorId" field from expanding "ListItemAllFields" to make a subsequent REST call to resolve the Title and UserId information by Id (I don't like this extra step either but I haven't found a way to get that info for Folders with a single GET).  However, for the base Lists and their associated "RootFolder"s, I do not get Author information, even if I expand the RootFolder's ListItemAllFields.  Is there a way to get the owner\creator information for at least the Document Library Lists where my Folders and Files reside?  I expected that expanding the RootFolder's ListItemAllFields would give me the "AuthorId" like it does for the sub-folders that have been created in the Document Library but all I get for this: .../_api/Web/GetFolderByServerRelativeUrl('docLibraryRootFolderServerRelativeUrl')/ListItemAllFields, is:</p>
  
  <pre><code>{
      "d": {
          "ListItemAllFields": null
      }
  }
  </code></pre>