dashboard_callback_display_page.py

# Update page
# # # # # # # # #
@app.callback(Output('page-content', 'children'),
              [Input('url', 'pathname')])
def display_page(pathname):
    if pathname == '/cc-travel-report' or pathname == '/cc-travel-report/overview-birst/':
        return layout_birst_category
    elif pathname == '/cc-travel-report/overview-ga/':
        return layout_ga_category
    elif pathname == '/cc-travel-report/paid-search/':
        return layout_paid_search
    elif pathname == '/cc-travel-report/display/':
        return layout_display
    elif pathname == '/cc-travel-report/publishing/':
        return layout_publishing
    elif pathname == '/cc-travel-report/metasearch-and-travel-ads/':
        return layout_metasearch
    else:
        return noPage