What's new in Django 5.1: Middleware to require authentication by default

django_5_1_whats_new.py

# <project>/settings.py

MIDDLEWARE = [
    # ...
    'django.contrib.auth.middleware.LoginRequiredMiddleware',
]

# <app>/urls.py

from django.contrib.auth.decorators import login_not_required
from django.http import HttpResponse
from django.urls import path


def login_required(request):
    return HttpResponse('Hello, logged users! Login was required.')


@login_not_required  # ← when login is not required
def login_not_required(request):
    return HttpResponse('Hello, world! Login is not required.')


urlpatterns = [
    # ...
    path('login-required/', login_required),
    path('login-not-required/', login_not_required),
]