How can I create multi-page apps using Plotly Dash?

How can I create multi-page apps using Plotly Dash?

You can create multi-page apps in Plotly Dash by using the dcc.Location component to manage the URL and dcc.Link for navigation.

Can you show me a simple example of a multi-page app?

Sure! You can create a simple app with two pages like this:

import dash
import dash_core_components as dcc
import dash_html_components as html
from dash.dependencies import Input, Output

app = dash.Dash(__name__)

app.layout = html.Div([
    dcc.Location(id='url', refresh=False),
    html.Div(id='page-content'),
    dcc.Link('Go to Page 1', href='/page-1'),
    dcc.Link('Go to Page 2', href='/page-2')
])

@app.callback(Output('page-content', 'children'), [Input('url', 'pathname')])
def display_page(pathname):
    if pathname == '/page-1':
        return html.Div([html.H1('Page 1'), html.P('This is the first page.')])
    elif pathname == '/page-2':
        return html.Div([html.H1('Page 2'), html.P('This is the second page.')])
    else:
        return html.Div([html.H1('Home'), html.P('Welcome to the multi-page app!')])

if __name__ == '__main__':
    app.run_server(debug=True)

What are some best practices for organizing multi-page apps?

It's best to keep your layout and callbacks modular. Use separate files for each page and import them into your main app file.