Callback with one of the Input matching the Output - Automatic graph height

[radekwlsk]

You can’t provide as Input the same thing that is output. That will create infinite loop! However, you can use state=[State(component_id='temp-graph', component_property='figure')], as state only passes argument when input fires callback, doe’s not fire the callback on change.

That will be:

@Demux

@app.callback(
    Output(component_id='temp-graph', component_property='figure'),
    [Input(component_id='temp-dropdown', component_property='value')],
    state=[State(component_id='temp-graph', component_property='figure')])
def update_temp_graph(dd_values, graph_figure):
    graph_data = []
    for v in dd_values:
        graph_data.append({'x': x_values[v], 'y': y_values[v], 'type':'scatter', 'mode':'lines', 'name':v})
    graph_figure['data'] = graph_data
return graph_figure