i have a 2-page app, on the first page (app.py), i use dcc.Store to store a value in the session cache, and then trying to load this data in the 2nd page (app2.py), and show it as html.H1.
Here is my code in page one:
dcc.Store(id='session', storage_type='session'),
then my callback on this page is:
@app.callback(Output('session', 'data'), [Input('q1', 'value')]) def q1_value(q1): return {'answer1value': q1}
while “q1” is a value from my radioitem.
But when i run this app, nothing is shown up in this H1. I have spent many hours fixing this but fail, would anyone please help ?
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Answer
put your
dcc.Store(id='session', storage_type='session'),
onto the app.py, not page1.py, under the
app.layout = html.Div([....])
then your value will be stored here, and can be called from other pages.