Map object is not JSON serializable
map() in Python 3 is a generator function, which is not serializeable in JSON. You can make it serializeable by converting it to a list:
from django.http import JsonResponsefrom collections import OrderedDictdef order(request): bunch = OrderSerializer(Order.objects.all(), many=True) headers = bunch.data[0].keys() # consume the generator and convert it to a list here headers_prepared = list(map(lambda x: {'data': x} , headers)) ordered_all = (('columns', headers_prepared), ('lines', bunch.data)) data = OrderedDict(ordered_all) return JsonResponse(data)
if someone come across this problme when using map(),you can try using list(map()) to solve this problem.