def register_views(app):
    app.add_url_rule('/results', view_func=ResultListView.as_view('result_list'))
    app.add_url_rule('/results', view_func=ResultCreateView.as_view('result_create'))
    app.add_url_rule('/results/<id>', view_func=ResultDetailView.as_view('result_detail'))
    app.add_url_rule('/observations', view_func=ObservationListView.as_view('observation_list'))