Add support for JSONField

Author: patrick91

graphene_django/rest_framework/serializer_converter.py

@@ -86,3 +86,8 @@ def convert_serializer_field_to_list(field, is_input=True):
 @get_graphene_type_from_serializer_field.register(serializers.DictField)
 def convert_serializer_field_to_dict(field):
     return DictType
+
+
+@get_graphene_type_from_serializer_field.register(serializers.JSONField)
+def convert_serializer_field_to_jsonstring(field):
+    return graphene.types.json.JSONString

graphene_django/rest_framework/tests/test_field_converter.py

@@ -140,3 +140,7 @@ def test_should_ip_convert_string():
 
 def test_should_image_convert_string():
     assert_conversion(serializers.ImageField, graphene.String)
+
+
+def test_should_json_convert_jsonstring():
+    assert_conversion(serializers.JSONField, graphene.types.json.JSONString)