如何在graphql中使用graphene-file-upload with apollo- Upload -client将文件上传到Python数据库和react前端。

from graphene_file_upload.scalars import Upload

class MyMutation(graphene.Mutation):
    file = Upload(required=True)
    
    def mutate(self, info, file):
        # 处理文件上传逻辑，例如保存文件到数据库或文件系统
        return MyMutation(file=file)

class MyMutation(graphene.Mutation):
    class Arguments:
        file = Upload(required=True)
        
    def mutate(self, info, file):
        # 处理文件上传逻辑
        return MyMutation()

from graphene_file_upload.flask import FileUploadGraphQLView

app.add_url_rule(
    '/graphql',
    view_func=FileUploadGraphQLView.as_view('graphql', schema=schema, graphiql=True)
)

import { ApolloConsumer } from 'react-apollo';

class MyUploadComponent extends React.Component {
    handleFileUpload = async (client, file) => {
        const formData = new FormData();
        formData.append('file', file);
        
        // 发送文件上传请求到后端
        const response = await fetch('/graphql', {
            method: 'POST',
            headers: {
                'Authorization': `Bearer ${accessToken}`,
            },
            body: formData,
        });
        
        // 处理上传后的响应
        const result = await response.json();
        // ...
    }
    
    render() {
        return (
            <ApolloConsumer>
                {client => (
                    <input type="file" onChange={e => this.handleFileUpload(client, e.target.files[0])} />
                )}
            </ApolloConsumer>
        );
    }
}