# Routing issues with dash integration with Flask

**URL:** <https://community.plotly.com/t/routing-issues-with-dash-integration-with-flask/53691>\
**Category:** Dash Python\
**Created:** [June 8, 2021, 9:03pm UTC](https://community.plotly.com/t/routing-issues-with-dash-integration-with-flask/53691 "2021-06-08T21:03:48Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![keval](https://avatars.discourse-cdn.com/v4/letter/k/ec9cab/32.png) [@keval](https://community.plotly.com/u/keval)\
**Post date:** [June 8, 2021, 9:03pm UTC](https://community.plotly.com/t/routing-issues-with-dash-integration-with-flask/53691/1 "2021-06-08T21:03:48Z")

</div>

I initially built a dash app that I am trying to run in a Flask environment. I required user authentication and therefore integrated dash to flask application for flask-login component.

When I run the application, the login works fine, however, I am running into issues configuring routing for my multi-page dash application.

Here’s the app file structure:

- auth

- pages

In `index.py`, the app layout is defined with page links. ‘Home’ is the default page when application loads.

```
import flask
from app import app
from auth.server import server

# App Layout
app.layout = html.Div([

        dcc.Link(
            'Home',
            href='/home'
        ),

        dcc.Link(
            'Archive',
            href='/archive'
        ),

        dcc.Location(id='url'),

        html.Div(id='page-content'),

       
])

# Render page content
@app.callback(Output("page-content", "children"),
              [
                Input('url', 'pathname')
              ]
             )
def display_content(pathname):

    if pathname == '/home':
        return home.layout

    elif pathname == '/archive':
        return archive.layout()

```

contents of `app.py`

```
app = dash.Dash( __name__ ,
                url_base_pathname='/home/',
                #routes_pathname_prefix='/dashboard/',
               )

```

contents of `init.py`

```
from .server import server
from index import app as dashApp

app = DispatcherMiddleware(server, {
                           '/dashboard': dashApp.server,
                           #add dash routes
})

```

How do I configure routing for the dash application? I am getting `404 Not Found` error when I try to access the dash application. The user / authentication part works fine.