login in only single device at a time

account/custom_middleware.py

@@ -0,0 +1,36 @@
+"""middleware file"""
+"""Django import"""
+from rest_framework import status
+from rest_framework.response import Response
+from rest_framework.renderers import JSONRenderer
+"""App django"""
+from account.utils import custom_error_response
+from account.models import UserDeviceDetails
+from base.messages import ERROR_CODE, SUCCESS_CODE
+
+"""Custom middleware 
+when user login with 
+multiple device simultaneously"""
+class CustomMiddleware:
+    """Custom middleware"""
+    def __init__(self, get_response):
+        """response"""
+        self.get_response = get_response
+
+    def __call__(self, request):
+        # Code to be executed before the view is called
+        response = self.get_response(request)
+        # Code to be executed after the view is called
+        device_id = request.META['HTTP_DEVICE_ID']
+        if request.user.is_authenticated:
+            """device details"""
+            device_details = UserDeviceDetails.objects.filter(user=request.user, device_id=device_id).last()
+            if not device_details:
+                custom_error = custom_error_response(ERROR_CODE['2037'], response_status=status.HTTP_404_NOT_FOUND)
+                response = Response(custom_error.data, status=status.HTTP_404_NOT_FOUND)
+                # Set content type header to "application/json"
+                response['Content-Type'] = 'application/json'
+                # Render the response as JSON
+                renderer = JSONRenderer()
+                response.content = renderer.render(response.data)
+        return response