Function create_app

tests/integration/test_patch.py:406–432

()

def test_pch004_duplicate_output_restart(dash_duo_mp):
    # Duplicate output ids should be the same between restarts for the same ids
    def create_app():
        app = Dash(__name__)
        app.layout = html.Div(
            [
                html.Button("Click 1", id="click1"),
                html.Button("Click 2", id="click2"),
                html.Div(id="output"),
            ]
        )

        @app.callback(
            Output("output", "children", allow_duplicate=True),
            Input("click1", "n_clicks"),
            prevent_initial_call=True,
        )
        def on_click(_):
            return "click 1"

        @app.callback(
            Output("output", "children", allow_duplicate=True),
            Input("click2", "n_clicks"),
            prevent_initial_call=True,
        )
        def on_click(_):
            return "click 2"

        return app

    dash_duo_mp.start_server(create_app())