如何在引号前不带反斜杠的情况下在python graphene解析器中返回json

您的初步结果

{
  "data": {
    "questionnaire": "{\"s1\": \"Section 1\", \"s2\": \"Section 2\", \"s3\": \"Section 3\", \"s4\": \"Section 4\"}"
  }
}

is the intended behavior. After all, questionnaire resolves to a JSONString. Since it is a string it must be double quoted, thus its inner quotations must be escaped. This is according to JSON's standards.

To use that string you, would have to run some sort of JSON parser on the data.questionnaire object. In javascript, for instance, it would be something like:

var data;
// Fetching logic to get the data object from your GraphQL server
var sections = JSON.parse(data.questionaire);

// Now you can access its objects
console.log(sections.s1) // Should print "Section 1" on the dev console

但是，如果sections没有预先确定密钥（sections.s5可能在一种情况下定义，而在另一种情况下未定义），则上述方法并不理想。相反，您可能希望有一个可以迭代的数组。为此，您必须定义一个具有显式键值对的“模型”。这样做也适用于GraphQL。例如：

import graphene

# Our new model
class Section(graphene.ObjectType):
    key = graphene.String()        # dictionary key
    header = graphene.String()     # dictionary value

# Your previous schema with modifications
class Query(graphene.ObjectType):
    # questionnaire = graphene.types.json.JSONString(description='JSON result test')

    # Return a list of section objects
    questionnaire = graphene.List(Section)

    def resolve_questionnaire(self, info: graphql.ResolveInfo):
        sections = {
          's1': "Section 1",
          's2': "Section 2",
          's3': "Section 3",
          's4': "Section 4"
        }

        sections_as_obj_list = [] # Used to return a list of Section types

        # Create a new Section object for each item and append it to list
        for key, value in sections.items(): # Use sections.iteritems() in Python2
            section = Section(key, value) # Creates a section object where key=key and header=value
            sections_as_obj_list.append(section)

        # return sections
        return sections_as_obj_list

现在，如果我们运行查询：

query {
  questionnaire {
    key
    header
  }
}

它返回一个可以迭代的JSON数组。

{
  "data" {
    "questionnaire": [
      {
        "key": "s1",
        "header": "Section 1"
      },
      {
        "key": "s2",
        "header": "Section 2"
      },
      {
        "key": "s3",
        "header": "Section 3"
      },
      {
        "key": "s4",
        "header": "Section 4"
      },
    ]
  }
}