Function read_prop

tests/websocket/test_ws_props.py:182–192

(n)

    @app.callback(Output("result", "children"), Input("btn", "n_clicks"))
    async def read_prop(n):
        if not n:
            raise PreventUpdate

        from dash import ctx

        ws = ctx.websocket
        if ws:
            value = await ws.get_prop("source", "children")
            return f"Read: {value}"
        return "No WebSocket"

    dash_duo.start_server(app)