code: def example(index):
      
      pid = PersistentIdentifier.query.filter_by(id=index).one()
      record = RecordMetadata.query.filter_by(id=pid.object_uuid).first()
  
      return render_template("app/detail.html", record=record.json, pid=pid,
                             title="Demosite Invenio Org")
docs: Index page.