How can I implement user authentication in Flask?

How can I implement user authentication in Flask?

You can use Flask-Login for user authentication. It helps manage user sessions and provides a simple way to handle logins.

What about user roles and permissions?

For roles and permissions, you can use Flask-Principal or implement a custom solution to manage access control based on user roles.

Can you show me a code example?

Sure! Here's a basic example:

from flask import Flask, redirect, url_for, request
from flask_login import LoginManager, UserMixin, login_user, login_required, logout_user

app = Flask(__name__)
app.secret_key = 'your_secret_key'
login_manager = LoginManager()
login_manager.init_app(app)

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

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

@app.route('/login', methods=['GET', 'POST'])
def login():
    # Implement login logic here
    pass

@app.route('/protected')
@login_required
def protected():
    return 'This is a protected route!'

if __name__ == '__main__':
    app.run()

Thanks! How do I secure my API endpoints?

You can secure your API endpoints by using decorators to check if a user is authenticated before allowing access to certain routes.