fix urls: multiple instead complex regex

dalec/urls.py

@@ -4,13 +4,40 @@
 # Third Party
 from dalec.views import FetchContentView
 
+fetch_content_view = FetchContentView.as_view()
 urlpatterns = [
     re_path(
         (
             "(?P<app>[a-z][a-z0-9_-]+)/(?P<content_type>[a-z][a-z0-9_-]+)"  # required part
-            "(?:/(?P<channel>[a-zA-Z][a-zA-Z0-9_-]+)(?:/(?P<channel_object>[^/]+)?(?:/(?P<ordered_by>[^/]+)?)))?"  # opt part # noqa
+            "/(?P<channel>[a-zA-Z][a-zA-Z0-9_-]+)"
+            "/(?P<channel_object>[^/]+)"
+            "/(?P<ordered_by>[^/]+)"
         ),
-        FetchContentView.as_view(),
+        fetch_content_view,
         name="dalec_fetch_content",
-    )
+    ),
+    re_path(
+        (
+            "(?P<app>[a-z][a-z0-9_-]+)/(?P<content_type>[a-z][a-z0-9_-]+)"  # required part
+            "/(?P<channel>[a-zA-Z][a-zA-Z0-9_-]+)"
+            "/(?P<channel_object>[^/]+)"
+        ),
+        fetch_content_view,
+        name="dalec_fetch_content",
+    ),
+    re_path(
+        (
+            "(?P<app>[a-z][a-z0-9_-]+)/(?P<content_type>[a-z][a-z0-9_-]+)"  # required part
+            "/(?P<channel>[a-zA-Z][a-zA-Z0-9_-]+)"
+        ),
+        fetch_content_view,
+        name="dalec_fetch_content",
+    ),
+    re_path(
+        (
+            "(?P<app>[a-z][a-z0-9_-]+)/(?P<content_type>[a-z][a-z0-9_-]+)"  # required part
+        ),
+        fetch_content_view,
+        name="dalec_fetch_content",
+    ),
 ]

dalec_example/proxy.py

@@ -1,16 +1,15 @@
 from __future__ import annotations
+
 from typing import TYPE_CHECKING
 
 if TYPE_CHECKING:
     from typing import Optional, Dict
 
-from datetime import timedelta, datetime
+from datetime import datetime, timedelta
 
 import requests
-
 from django.utils.dateparse import parse_datetime
-from django.utils.timezone import make_aware
-from django.utils.timezone import now
+from django.utils.timezone import make_aware, now
 
 from dalec.proxy import Proxy