How can you implement user authentication in Django?

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User authentication in Django can be implemented using its built-in authentication system, which provides everything needed to manage users, passwords, login/logout, and permissions.

Key Components:

• User model: Represents a user (provided by django.contrib.auth.models)

• Authentication views: For login, logout, and password management

• Middleware: Manages session and user data

Basic Steps to Implement Authentication:

1. Enable Authentication App
   Make sure 'django.contrib.auth' and 'django.contrib.sessions' are in your INSTALLED_APPS.

2. Create and Apply Migrations

3. Create a Superuser

4. Use Django’s Login and Logout Views
   In urls.py:

5. Protect Views with Login Required

6. Authentication in Templates

Advanced:

• Use django-allauth for social login (Google, Facebook).

• Use django-rest-framework-simplejwt for API token-based auth.

Django's system is secure, extensible, and easy to integrate with both frontend templates and APIs.

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