register and sign in pages

backend/locations/api.py

@@ -0,0 +1,17 @@
+from rest_framework.generics import ListAPIView
+from rest_framework.permissions import AllowAny
+
+from .models import Atoll
+from .serializers import AtollSerializer
+
+
+class AtollListView(ListAPIView):
+    """Public: the registration form needs this before anyone has a token."""
+
+    authentication_classes = []
+    permission_classes = [AllowAny]
+    serializer_class = AtollSerializer
+    pagination_class = None
+
+    def get_queryset(self):
+        return Atoll.objects.filter(is_active=True).prefetch_related("islands")