通过 Apollo Client 发送文件并在 Graphene Flask 服务器中接收

Question

我在我的 Flask 应用程序中使用 Graphene 包 (https://github.com/graphql-python/graphene) and graphene-file-upload (https://pypi.org/project/graphene-file-upload/)。我需要通过如下所示的突变接收文件：

class Picture(graphene.Mutation):
    class Arguments:
        file = Upload(required=True)

    numerical_id = graphene.Int()

    def mutate(self, info, file):
    ... continues

class Mutations(graphene.ObjectType):

    picture = Picture.Field()

但是当我通过 Apollo 客户端 (https://www.apollographql.com/docs/react/) 发送突变时，我收到了这个错误：

Unknown type "Upload". Perhaps you meant "Float"?
Cannot query field "picture" on type "Mutations".

是否有任何解决方法？提前致谢！

Answer 1

您是否从 graphene_file_upload.scalars 导入上传？您还需要确保修复连接到 /graphql 视图的视图函数

Answer 2

我花了几个小时试图解决这个问题，因为突变通过 Postman 运行良好，但从前端发送时却不行。问题是父组件使用的 ApolloProvider 与我预期的不同。

通过 Apollo Client 发送文件并在 Graphene Flask 服务器中接收

Send files via Apollo Client and receive in Graphene Flask server

graphene-python

apollo-client