dash-flask/app.py at master · eliyarson/dash-flask · GitHub

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

from server import app, server
from flask_login import logout_user, current_user
from views import success, login, login_fd, logout

header = html.Div(
    className='header',
    children=html.Div(
        className='container-width',
        style={'height': '100%'},
        children=[
            html.Img(
                src='assets/dash-logo-stripe.svg',
                className='logo'
            ),
            html.Div(className='links', children=[
                html.Div(id='user-name', className='link'),
                html.Div(id='logout', className='link')
            ])
        ]
    )
)

app.layout = html.Div(
    [
        header,
        html.Div([
            html.Div(
                html.Div(id='page-content', className='content'),
                className='content-container'
            ),
        ], className='container-width'),
        dcc.Location(id='url', refresh=False),
    ]
)


@app.callback(Output('page-content', 'children'),
              [Input('url', 'pathname')])
def display_page(pathname):
    if pathname == '/':
        return login.layout
    elif pathname == '/login':
        return login.layout
    elif pathname == '/success':
        if current_user.is_authenticated:
            return success.layout
        else:
            return login_fd.layout
    elif pathname == '/logout':
        if current_user.is_authenticated:
            logout_user()
            return logout.layout
        else:
            return logout.layout
    else:
        return '404'


@app.callback(
    Output('user-name', 'children'),
    [Input('page-content', 'children')])
def cur_user(input1):
    if current_user.is_authenticated:
        return html.Div('Current user: ' + current_user.username)
        # 'User authenticated' return username in get_id()
    else:
        return ''


@app.callback(
    Output('logout', 'children'),
    [Input('page-content', 'children')])
def user_logout(input1):
    if current_user.is_authenticated:
        return html.A('Logout', href='/logout')
    else:
        return ''


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