I have a multipage app where I’d like to use
persistance=True to save the fields between tabs.
One of these fields is updated by a server callback, but when inspecting the localStorage the value isn’t set in the store. The field really should be persisted, as the server callback is to import data. The user shouldn’t need to reimport when changing tabs back
Minimal reproductive example:
from random import randint from dash import Dash from dash.exceptions import PreventUpdate from dash.dependencies import Output, Input import dash_html_components as html import dash_core_components as dcc app = Dash( "plotly", ) # type: Dash app.layout = html.Div( [ dcc.Input( type="text", id="field", persistence=True, ), html.Br(), html.Button("Click me", id="btn"), ] ) @app.callback( Output("field", "value"), Input("btn", "n_clicks"), ) def update(n): if n is None or n == 0: raise PreventUpdate return str(randint(0, 100)) app.run_server(debug=True, host="127.0.0.1", port=8050)