django-hosts subdomains not detected

[pitchopp]

Hello, i installed drf_spectacular in my project that uses django-hosts for handling multiple subdomains. spectacular doesn't detect any view because my ROOT_URLCONF is empty.

here is my django_hosts configuration

from django_hosts import patterns, host
from django.conf import settings

host_patterns = patterns('',
    host(r'', settings.ROOT_URLCONF, name=' '),
    host(r'api', 'api.urls', name='api'),
    host(r'admin', 'backend.admin_urls', name='admin')
)

my root urls is empty because my routes are located in "api" app

urlpatterns = []

here is the output of ./manage.py spectacular

> python manage.py spectacular

openapi: 3.0.3
info:
  title: Your Project API
  version: 1.0.0
  description: Your project description
paths: {}
components: {}

Am i missing a configuration to tell spectacular how to fetch other hosts urls ?

[tfranzel]

Hi, I was unaware of this library. Seems like it completely bypasses the regular urlconf and instead injects its own routes via middleware. Spectacular&DRF both know nothing about this "hack".

I guess you have to make spectacular aware of thos injected routes by customizing the generator:

drf-spectacular/drf_spectacular/settings.py

Line 30 in 27ae6f2

'DEFAULT_GENERATOR_CLASS': 'drf_spectacular.generators.SchemaGenerator',

In fact you only want to set a customized Enumerator class and leave the rest as is:

drf-spectacular/drf_spectacular/generators.py

Line 103 in 27ae6f2

endpoint_inspector_cls = EndpointEnumerator

You then subclass our enumerator and overwrite the __init__ and make it aware of those other routes.

https://github.com/encode/django-rest-framework/blob/dbac145638758413b966c3418fa5f3f651e3e02a/rest_framework/schemas/generators.py#L61

So basically one changed setting, 1 class with one changed attribute and 1 class with a patched init.