七牛云存储 - 关于 callback_body

Question

http://docs.qiniu.com/ruby-sdk/v3/index.html#generate-upload-token

Qiniu::RS.generate_upload_token :scope              => target_bucket,
                                :expires_in         => expires_in_seconds,
                                :callback_url       => callback_url,
                                :callback_body      => callback_body,
                                :callback_body_type => callback_body_type,
                                :customer           => end_user_id,
                                :escape             => allow_upload_callback_api,
                                :async_options      => async_callback_api_commands,
                                :return_body        => custom_response_body

我使用JavaScript方式上传，上传表单参加中也有指定params，业务服务器参成功获取到params参数内容，callback_body 指定的内容没有在请求中，不清楚这两者有什么区别

我期望的是，callback_body 中放一些敏感数据，放在uploadToken中，其它数据放在params中！

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Answer 1

You can look at the upload policy here http://developer.qiniu.com/docs/v6/api/reference/security/put-policy.html and here http://developer.qiniu.com/docs/v6/api /reference/security/upload-token.htmlUpload credentials

Answer 2

The reason callbackBody and callbackUrl need to be used at the same time is because Qiniu’s server will post the parameters in callbackBody to callbackUrl after the upload is successful.

callbackUrl and params are used together and are the old form upload interface http://docs.qiniutek.com/v3/api/io/#callback-logic

This params is abandoned in the new interface, replaced by the new callbackBody. So now you only need to use callbackBody and callbackUrl, both of which are written in the putPolicy in the generated Uploadtoken.