UPDATE

external_api_adapter/services.py

@@ -0,0 +1,14 @@
+from django.conf import settings
+
+from .exceptions import ServiceNotFound
+
+
+class ServiceRegistry:
+    def __init__(self):
+        self._services = getattr(settings, "EXTERNAL_SERVICES", {})
+
+    def get(self, service_name):
+        service = self._services.get(service_name)
+        if service is None:
+            raise ServiceNotFound(f"Unknown external service: '{service_name}'")
+        return service