New API endpoint to fetch dataset directory

.gitignore

@@ -35,6 +35,7 @@ htmlcov/
 
 # workspace files are user-specific
 *.sublime-workspace
+.vscode
 
 # npm
 node_modules/
@@ -61,4 +62,4 @@ prediction/data/*
 *.db
 
 # ignore data
-data/
+data/

interface/backend/api/urls.py

@@ -3,6 +3,7 @@
     CandidateViewSet,
     NoduleViewSet,
     ImageSeriesViewSet,
+    ImageAvailableApiView,
     candidate_mark,
     candidate_dismiss,
 )
@@ -21,6 +22,7 @@
 urlpatterns = [
     url(r'^', include(router.urls)),
     url(r'^api-auth/', include('rest_framework.urls', namespace='rest_framework')),
+    url(r'^images/available$', ImageAvailableApiView.as_view(), name='image-available'),
     url(r'^candidates/(?P<candidate_id>\d+)/dismiss$', candidate_dismiss, name='candidate-dismiss'),
     url(r'^candidates/(?P<candidate_id>\d+)/mark$', candidate_mark, name='candidate-mark'),
 ]

interface/backend/api/views.py

@@ -4,6 +4,8 @@
     Candidate,
     Nodule,
 )
+from rest_framework.views import APIView
+from rest_framework.response import Response
 from backend.images.models import ImageSeries
 from django.http import JsonResponse
 from rest_framework import viewsets
@@ -29,6 +31,18 @@ class ImageSeriesViewSet(viewsets.ModelViewSet):
     serializer_class = serializers.ImageSeriesSerializer
 
 
+class ImageAvailableApiView(APIView):
+    """
+    View list of images from dataset directory
+    """
+    def get(self, request):
+        """
+        Return a list of files and folders in dataset
+        TODO implement directory retrieval method
+        """
+        return Response([])
+
+
 def candidate_mark(request, candidate_id):
     return JsonResponse({'response': "Candidate {} was marked".format(candidate_id)})