chore: update v1 route to only push sensors data, add statistics view

.env.template

@@ -1,5 +1,3 @@
-SENSORSAFRICA_CELERY_SLACK_WEBHOOK=""
-SENSORSAFRICA_CELERY_SLACK_WEBHOOK_FAILURES_ONLY=""
 SENSORSAFRICA_DATABASE_URL=""
 SENSORSAFRICA_DEBUG=""
 SENSORSAFRICA_FLOWER_ADMIN_PASSWORD=""

sensorsafrica/api/v1/router.py

@@ -18,7 +18,6 @@
 from rest_framework import routers
 
 router = routers.DefaultRouter()
-router.register(r"push-sensor-data", PostSensorDataView)
 router.register(r"node", NodeView)
 router.register(r"sensor", SensorView)
 router.register(r"data", VerboseSensorDataView)
@@ -31,3 +30,8 @@
 router.register(r"filter", FilterView, basename="filter")
 
 api_urls = router.urls
+
+push_sensor_data_router = routers.DefaultRouter()
+push_sensor_data_router.register(r"push-sensor-data", PostSensorDataView)
+
+push_sensor_data_urls = push_sensor_data_router.urls

sensorsafrica/api/v2/router.py

@@ -10,6 +10,7 @@
     SensorLocationsView,
     SensorTypesView,
     SensorsView,
+    StatisticsView,
     meta_data,
 )
 
@@ -22,6 +23,7 @@
 router.register(r"locations", SensorLocationsView, basename="sensor-locations")
 router.register(r"sensors", SensorsView, basename="sensors")
 router.register(r"sensor-types", SensorTypesView, basename="sensor-types")
+router.register(r"statistics", StatisticsView, basename="statistics")
 
 api_urls = [
     url(r"^", include(router.urls)),

sensorsafrica/api/v2/views.py

@@ -9,7 +9,7 @@
 from django.conf import settings
 from django.utils import timezone
 from django.db import connection
-from django.db.models import ExpressionWrapper, F, FloatField, Max, Min, Sum, Avg, Q
+from django.db.models import ExpressionWrapper, F, FloatField, Max, Min, Sum, Avg, Q, Count
 from django.db.models.functions import Cast, TruncHour, TruncDay, TruncMonth
 from django.utils.decorators import method_decorator
 from django.utils.text import slugify
@@ -486,3 +486,40 @@ def get_queryset(self):
         return SensorData.objects.filter(
             sensor__public=True, modified__range=[startdate, now]
         )
+
+
+class StatisticsView(viewsets.ViewSet):
+    authentication_classes = [SessionAuthentication, TokenAuthentication]
+    permission_classes = [IsAuthenticated]
+
+    def list(self, request):
+        user_count = User.objects.aggregate(count=Count('id'))['count']
+        sensor_count = Sensor.objects.aggregate(count=Count('id'))['count']
+        sensor_data_count = SensorData.objects.aggregate(count=Count('id'))['count']
+        sensor_data_value_count = SensorDataValue.objects.aggregate(count=Count('id'))['count']
+        sensor_type_count = SensorType.objects.aggregate(count=Count('id'))['count']
+        sensor_type_list = list(SensorType.objects.order_by('uid').values_list('name', flat=True))
+        location_count = SensorLocation.objects.aggregate(count=Count('id'))['count']
+
+        stats = {
+            'user': {
+                'count': user_count,
+            },
+            'sensor': {
+                'count': sensor_count,
+            },
+            'sensor_data': {
+                'count': sensor_data_count,
+            },
+            'sensor_data_value': {
+                'count': sensor_data_value_count,
+            },
+            'sensor_type': {
+                'count': sensor_type_count,
+                'list': sensor_type_list,
+            },
+            'location': {
+                'count': location_count,
+            }
+        }
+        return Response(stats)

sensorsafrica/urls.py

@@ -21,13 +21,13 @@
 from rest_framework.authtoken.views import obtain_auth_token
 from rest_framework.documentation import include_docs_urls
 
-from .api.v1.router import api_urls as sensors_api_v1
+from .api.v1.router import push_sensor_data_urls
 from .api.v2.router import api_urls as sensors_api_v2
 
 urlpatterns = [
     url(r"^$", RedirectView.as_view(url="/docs/", permanent=False)),
     url(r"^admin/", admin.site.urls),
-    url(r"^v1/", include(sensors_api_v1)),
+    url(r"^v1/push-sensor-data/", include(push_sensor_data_urls)),
     url(r"^v2/", include(sensors_api_v2)),
     url(r"^get-auth-token/", obtain_auth_token),
     url(r"^auth/", include("rest_framework.urls", namespace="rest_framework")),