My goal in my multi-page app is to make the page load itself a trigger for a specific page’s callback, but since I don’t think this is possible, I am attempting to watch the loading state of the page’s dbc.Container.
When I run something similar to below, per the docs, I would have expected it to print a dict with the component name and True for the loading state. Instead, it prints None.
Can anyone offer any input on how to achieve this goal? thank you
@dash.callback(
Output("update_message", "children"),
Input('main_container', 'loading_state'),
)
def func(loading_state):
print(loading_state)
def layout():
return dbc.Container([***page contents here], id='main_container', fluid=True)