JSONField(binary=True) represents using binary strings, which JSONRenderer does not support. · Issue #4185 · encode/django-rest-framework (original) (raw)

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I have verified that that issue exists against the master branch of Django REST framework.
I have searched for similar issues in both open and closed tickets and cannot find a duplicate.
This is not a usage question. (Those should be directed to the discussion group instead.)
This cannot be dealt with as a third party library. (We prefer new functionality to be in the form of third party libraries where possible.)
I have reduced the issue to the simplest possible case.
I have included a failing test as a pull request. (If you are unable to do so we can still accept the issue.)

from rest_framework import serializers

class TestSerializer(serializers.Serializer): json = serializers.JSONField()

s = TestSerializer(data={'json': "{broken JSON"}) assert s.is_valid() is False

Invalid JSON should result in is_valid() returning False.

is_valid() returns True

Specifying binary=True for the field definition results in the desired behavior for serialization, but causes deserialization to fail on Python 3.