Python序列化Rest并将sam图形化

Question

我一直在使用GraphQL（graphene），编写了一个基于Python/Falcon的小应用程序，该应用程序在Rest&GraphQL中返回帖子列表：

from falcon import API, json
import graphene

def get_all_posts():
    posts = [
        {
            'content': (
                'Hello, '
                "World..."
            ),
            'author': 'Unknown author'
        }
    ]
    return posts


class Query(graphene.ObjectType):
    posts = graphene.String()

    def resolve_posts(self, info):
        return get_all_posts()


schema = graphene.Schema(query=Query)

class PostsResource:
    def on_get(self, req, resp):
        posts = get_all_posts()
        resp.media = {'posts': json.dumps(posts)}


class GraphQLResource:
    def on_get(self, req, resp):
        query = req.params['query']
        result = schema.execute(query)
        resp.media = result.data


api = API()
api.add_route('/graphql', GraphQLResource())
api.add_route('/posts', PostsResource())

查询GraphQL（localhost/GraphQL？query=查询%20posts%20{%20posts%20}）

{"posts": "[{'content': 'Hello, World...', 'author': 'Unknown author'}]"}

以及使用Rest端点（localhost/posts）

{"posts": "[{\"content\": \"Hello, World...\", \"author\": \"Unknown author\"}]"}

我不知道这是否重要，但我想知道为什么它的序列化方式不同？。。有没有可能做到同样的效果？在

这样做有意义吗？在

任何帮助都将不胜感激！谢谢！在

• P、 S如果我不转储（json.dumps()）我得到的rest端点的结果：

{"posts": [{"content": "Hello, World...", "author": "Unknown author"}]}

Answer 1

看起来它将整个posts列表序列化为单个字符串（posts = graphene.String()）。我对graphene不太熟悉，但可能您必须创建嵌套模式-类似于：

class Post(graphene.ObjectType):
    content = graphene.String()
    author = graphene.String()

class Query(graphene.ObjectType):
    # or Field instead of List, I'm not sure about that.
    posts = graphene.List(Post)

我希望它能帮助你解决问题