Listing API Exposed

Listing Exposed API Endpoints with DefaultRouter in Django REST Framework"

When you use the DefaultRouter in Django REST Framework (DRF), it automatically generates API endpoints for the viewsets you register with it. To know which API endpoints are exposed, you can follow these steps:

Use router.urls:

After registering your viewsets with the DefaultRouter, you can inspect the urls property of the router to see the list of generated URL patterns.
```
from rest_framework.routers import DefaultRouter
from myapp.views import MyViewSet

router = DefaultRouter()
router.register(r'my-viewset', MyViewSet, basename='myviewset')

# Print the list of URLs
print(router.urls)
```
This will give you an idea of which endpoints are available. The output will be a list of URLPattern objects.
Access the API Root Endpoint:

By default, DefaultRouter creates an API root endpoint, usually at /. When you visit this endpoint in your browser or using a tool like Postman, it will list all the available endpoints.
```
urlpatterns = [
    path('', include(router.urls)),
]
```
If you navigate to http://localhost:8000/ (or your API's base URL), you'll see a list of all registered endpoints.

Check the urls.py Configuration:

Ensure that you've included the router in your urls.py file. This is where you can see which viewsets are registered, giving you an idea of the endpoints exposed.

from django.urls import path, include
from rest_framework.routers import DefaultRouter
from myapp.views import MyViewSet

router = DefaultRouter()
router.register(r'my-viewset', MyViewSet, basename='myviewset')

urlpatterns = [
    path('', include(router.urls)),
]

Use DRF's schema or swagger:

If you're using tools like DRF's schema generation (/schema/) or Swagger (drf-yasg), you can generate documentation that lists all the exposed endpoints.

Example:
- Swagger: Visit the /swagger/ endpoint to view a list of all endpoints in a Swagger UI.
- Schema: Visit /schema/ for a raw schema or /redoc/ for ReDoc documentation.
Run manage.py show_urls:

You can use third-party packages like django-extensions to run a command that shows all registered URLs in your Django application, including those from the DefaultRouter.
```
python manage.py show_urls
```

This will display all the URLs exposed by your application, including the ones managed by DRF's DefaultRouter.