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Changes between Initial Version and Version 1 of Ticket #34516

-              initial
+              v1
+ef submit_expense(request):
+    ###user submit expense###
+    #TODO:
+from django.shortcuts import render
+from django.http import JsonResponse
+from json import JSONEncoder
+from django.views.decorators.csrf import csrf_exempt
+from web.models import User,Token,Expense,Income
+from datetime import datetime
+# Create your views here.
+@csrf_exempt
+def submit_expense(request):
     this_token = request.POST.get("token")
     return JsonResponse({
         "token": this_token
     } )
+why this code return null