Graphene Django返回空值

Question

当使用下面的模式时，我在查询产品时总是得到空值。根据我对文档的理解，它应该返回一个包含id和name的2个对象的数组。有谁能帮助我理解为什么下面的代码不起作用？在

import graphene

class Product(graphene.ObjectType):
    id = graphene.Int()
    name = graphene.String()


class Query(graphene.ObjectType):
    products = graphene.List(Product)

    def resolve_products(self, info, **kwargs):
        return [{
            "name": "TEST", "id": 1
        }, {
            "name": "TEST2", "id": 2
        }]

schema = graphene.Schema(query=Query)

Answer 1

我不知道你现在是否明白。我遇到了和你一样的问题，谢谢你上网。下面的答案可能有帮助。在

另外，我使用flask来可视化web。在

from flask import Flask
from flask_graphql import GraphQLView
import graphene

app = Flask(__name__)

class Product(graphene.ObjectType):
    id = graphene.Int()
    name = graphene.String()

class Query(graphene.ObjectType):
    products = graphene.List(Product)

    def resolve_products(self, info, **kwargs):
        return [Product(name="TEST", id=1), Product(name="TEST2", id= 2)]

schema = graphene.Schema(query=Query)
app.add_url_rule('/graphql', view_func=GraphQLView.as_view('graphql',
    schema=schema, graphiql=True))

app.run(port=4901)

运行.py时，输入http://localhost:4901/graphql进行查询。在

^{pr2}$

返回列表类型。return [Product(name="TEST", id=1), Product(name="TEST2", id= 2)]