How can I implement user authentication in a Python Dash app?

How can I implement user authentication in a Python Dash app?

You can use Flask-Login along with Dash to manage user sessions and authentication. Would you like a code example?

Yes, please provide a code example for user login and logout.

Here's a simple example:

from dash import Dash, html, dcc
from flask import Flask, redirect, url_for, session
from flask_login import LoginManager, UserMixin, login_user, logout_user, login_required

app = Dash(__name__)
server = app.server

login_manager = LoginManager()
login_manager.init_app(server)

class User(UserMixin):
    def __init__(self, id):
        self.id = id

@login_manager.user_loader
def load_user(user_id):
    return User(user_id)

@app.callback(...)
def login(...):
    # Handle login logic here

@app.callback(...)
def logout(...):
    # Handle logout logic here

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

This sets up basic user authentication.

What about password hashing for security?

You should use libraries like werkzeug.security to hash passwords before storing them. Would you like to see how to implement that?