Docs: Add info about how to split up views

[fkromer]

The docs do not contain info about how to breaking up django-ninja views. That's needed e.g. if you want to consolidate the APIs of separate Django apps into an API for the overall Django project.

The solution suggested (exemplary Django app core) is:

# File: core/api.py
from ninja import NinjaAPI

api = NinjaAPI(csrf=True)

# File: users/views.py
from core.api import api

@api.get("users/something/"):
def get_user(request):
   # ... do something interesting here ...

# File: posts/views.py
from core.api import api

@api.get("posts/{username}/"):
def get_posts(requests, username: str):
   # ... do something interesting here ...

Import views.py into urls.py before calling api.urls in urlpatterns:

# File: config/urls.py
import users.views
import posts.views
from core.api import api

urlpatterns = [
    path("api/", api.urls),
]

[Jragon]

I think the neater way is to use nested routers right?

We have a central app for configuring our api and setting up all of the error handlers, and auth. It's also a place to store any api utils. core/api.

Then any app has an api folder, which contains a python file for each set of concerns. These all define routers, then in the init.py just import all the routers from this app and make one app wide one. Then in the core/api/api.py file import all of the app routers and make one router to join them all. Then in urls.py import from core/api/api.py

Here's the docs: https://django-ninja.rest-framework.com/guides/routers/?h=nested+routers#nested-routers