Fields' names are snake_case in SerializerMutation errors

[kamilkijak]

When serializer is not valid, SerializerMutation returns errors where fields' names are snake_case (default DRF behaviour). I believe that it's easier for the client to use pascalCase which is used for the input of mutation.

Simplified example:

• serializers.py

  from rest_framework import serializers
  
  class UserSerializer(serializers.ModelSerializer):
      class Meta:
          model = User
          fields = ('birth_date', )
  
      def validate_birth_date(self, value):
          age = calculate_age(value)
          if int(age) < 18:
              raise serializers.ValidationError(
                  'Sorry, you must be at least 18 years old.'
              )
          return value

• schema.py

  from graphene_django.rest_framework.mutation import SerializerMutation
  
  class UserMutation(SerializerMutation):
      class Meta:
          serializer_class = UserSerializer

• GraphQL mutation

  mutation CreateUser {
    signUp(input: {birthDate: "2010-01-01"}) {
      birthDate
      errors {
        field
        messages
      }
    }
  }

• Response with birth_date in errors (instead of birthDate)

  {
    "data": {
      "signUp": {
        "birthDate": null,
        "errors": [
          {
            "field": "birth_date",
            "messages": [
              "Sorry, you must be at least 18 years old."
            ]
          }
        ]
      }
    }
  }

[BossGrand]

Where do serializes come from?

[kamilkijak]

From django-rest-framework, I updated the issue as well.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[kamilkijak]

@BossGrand just a friendly ping to not to let the bot close this issue :-)

[jkimbo]

@kamilkijak will this PR fix your issue: #514 ?

[jkimbo]

This issue should be fixed in v2.4.0 by setting the CAMELCASE_ERRORS setting: http://docs.graphene-python.org/projects/django/en/latest/settings/#camelcase-errors