barebone app with django and react, sse, jwt token, comport reader, test comport writer, requires com0com, users with groups, sample table vehicles, tokens for access and refresh

backend/vehicles/views.py

@@ -0,0 +1,70 @@
+from django.shortcuts import render
+
+from django.shortcuts import render
+from django.views.generic.list import ListView
+from rest_framework import generics, status
+from rest_framework.decorators import api_view, permission_classes
+from rest_framework.permissions import IsAuthenticated
+from rest_framework.response import Response
+
+from .models import Vehicle
+from .serializers import VehicleSerializer
+from scalesapp.sse import broadcast_update
+
+# Create your views here.
+class CountriesView(ListView):
+    pass
+
+# API Views
+class VehicleListCreateAPIView(generics.ListCreateAPIView):
+    queryset =Vehicle.objects.all()
+    serializer_class = VehicleSerializer
+    permission_classes = [IsAuthenticated]
+    
+    def create(self, request, *args, **kwargs):
+        """Override create to broadcast SSE message"""
+        serializer = self.get_serializer(data=request.data)
+        serializer.is_valid(raise_exception=True)
+        self.perform_create(serializer)
+        
+        # Broadcast SSE update
+        broadcast_update('vehicle', 'created', serializer.data)
+        
+        return Response(serializer.data, status=status.HTTP_201_CREATED)
+
+class VehicleRetrieveUpdateDestroyAPIView(generics.RetrieveUpdateDestroyAPIView):
+    queryset = Vehicle.objects.all()
+    serializer_class = VehicleSerializer
+    permission_classes = [IsAuthenticated]
+    
+    def update(self, request, *args, **kwargs):
+        """Override update to broadcast SSE message"""
+        partial = kwargs.pop('partial', False)
+        instance = self.get_object()
+        serializer = self.get_serializer(instance, data=request.data, partial=partial)
+        serializer.is_valid(raise_exception=True)
+        self.perform_update(serializer)
+        
+        # Broadcast SSE update
+        broadcast_update('vehicle', 'updated', serializer.data)
+        
+        return Response(serializer.data)
+    
+    def destroy(self, request, *args, **kwargs):
+        """Override destroy to broadcast SSE message"""
+        instance = self.get_object()
+        country_data = CountrySerializer(instance).data
+        self.perform_destroy(instance)
+        
+        # Broadcast SSE update
+        broadcast_update('vehicle', 'deleted', country_data)
+        
+        return Response(status=status.HTTP_204_NO_CONTENT)
+
+@api_view(['GET'])
+@permission_classes([IsAuthenticated])
+def get_vehicles(request):
+    """API endpoint for getting countries list"""
+    vehicles = Vehicle.objects.all().order_by('id')
+    serializer = VehicleSerializer(vehicles, many=True)
+    return Response(serializer.data)