code: def post_structure(entry, site):
      
      author = entry.authors.all()[0]
      return {'title': entry.title,
              'description': six.text_type(entry.html_content),
              'link': '%s://%s%s' % (PROTOCOL, site.domain,
                                     entry.get_absolute_url()),
              # Basic Extensions
              'permaLink': '%s://%s%s' % (PROTOCOL, site.domain,
                                          entry.get_absolute_url()),
              'categories': [cat.title for cat in entry.categories.all()],
              'dateCreated': DateTime(entry.creation_date.isoformat()),
              'postid': entry.pk,
              'userid': author.get_username(),
              # Useful Movable Type Extensions
              'mt_excerpt': entry.excerpt,
              'mt_allow_comments': int(entry.comment_enabled),
              'mt_allow_pings': (int(entry.pingback_enabled) or
                                 int(entry.trackback_enabled)),
              'mt_keywords': entry.tags,
              # Useful Wordpress Extensions
              'wp_author': author.get_username(),
              'wp_author_id': author.pk,
              'wp_author_display_name': author.__str__(),
              'wp_password': entry.password,
              'wp_slug': entry.slug,
              'sticky': entry.featured}
docs: A post structure with extensions.