drf serializer IntegerField null

The IntegerField serializer in Django REST framework allows you to serialize and deserialize integer values. By default, the IntegerField serializer does not allow null values. If you want to allow null values for an IntegerField, you can set the allow_null parameter to True.

Here's an example:

from rest_framework import serializers

class MySerializer(serializers.Serializer):
    my_integer_field = serializers.IntegerField(allow_null=True)

In the above example, my_integer_field can accept null values. If you do not set allow_null to True, then the serializer will raise a validation error when it encounters a null value.