在GraphQL中使用graphene-file-upload with apollo-upload-client将文件上传到Python数据库和React前端的步骤如下:
graphene-file-upload
和Flask
(或其他Python web框架)。在React前端中,你需要安装apollo-upload-client
和react-apollo
。graphene-file-upload
提供的Upload
类型。例如: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()
graphene-file-upload
提供的FileUploadGraphQLView
视图类。例如:from graphene_file_upload.flask import FileUploadGraphQLView
app.add_url_rule(
'/graphql',
view_func=FileUploadGraphQLView.as_view('graphql', schema=schema, graphiql=True)
)
apollo-upload-client
提供的ApolloConsumer
组件包裹你的上传组件。例如: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>
);
}
}
请注意,上述代码仅为示例,你需要根据你的具体需求进行适当的修改和调整。
对于Python数据库和React前端的具体选择,由于不能提及特定的云计算品牌商,我无法给出具体的推荐。但你可以根据你的需求和偏好选择适合的数据库和前端框架。
领取专属 10元无门槛券
手把手带您无忧上云