InitiateMultipartUpload
更新时间：2022-05-24 18:28:14
使用分块上传时，须先调用Initiate Multipart Upload接口创建任务，系统会给用户返回一个全局唯一的多段上传任务号uploadId，作为任务标识。后续用户可以根据这个标识发起相关的请求，如：上传段、合并段、列举段等。同一个对象可以同时存在多个多段上传任务；每个多段上传任务在初始化时可以附加消息头信息。
需要IAM wos:PutObject权限。
请求语法
POST /ObjectName?uploads HTTP/1.1
Host: Bucket.Endpoint
Date: date
Authorization: authorization
Cache-Control: CacheControl
Content-Disposition: ContentDisposition
Content-Encoding: ContentEncoding
Content-Language: ContentLanguage
Content-Length: ContentLength
Content-MD5: ContentMD5
Content-Type: ContentType
Expires: Expires
URI请求参数
无
请求头部
除使用公共请求头部，还支持
参数 | 描述 | 是否必填 |
|---|---|---|
| Content-MD5 | 原始数据的MD5，如果数据在传输过程中没有遭到破坏导致MD5不一致，会响应403 SignatureDoesNotMatch | |
| x-wos-storage-class | 定文件的存储类型，Standard-标准存储、IA-低频存储、Archive-归档存储。默认同空间的存储类型 | 否 |
| x-wos-meta-* | 客户自定义元数据，会在headObject、getObject时的头部原样返回 | 否 |
请求主体
无
响应语法
HTTP/1.1 status_code
x-wos-request-id: request id
Date: date
Content-Length: length
Connection: status
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<InitiateMultipartUploadResult xmlns="https://www.wangsu.com/document">
<Bucket>BucketName</Bucket>
<Key>ObjectName</Key>
<UploadId>uploadID</UploadId>
</InitiateMultipartUploadResult>
响应头部
仅使用公共响应头部。
响应元素
元素名称 | 描述 |
InitiateMultipartUploadResult | 描述多段上传任务的容器 |
Bucket | 多段上传对象所在空间的空间名 |
Key | 多段上传对象的key |
UploadId | 多段上传id，后面进行多段上传时，利用这个id指定多段上传任务 |
特殊错误
Situation | Http Status | Error Code | Message |
签名有带uploads，URL中没带uploads；或者URL有带uploads，签名中没带uploads | 403 Foribidden | SignatureDoesNotMatch | The request signature we calculated does not match the signature |
签名有带uploads，URL中的uploads非法（比如拼写错误）；或者URL有带uploads，签名中uploads非法（比如拼写错误） | 403 Foribidden | SignatureDoesNotMatch | The request signature we calculated does not match the signature you provided. |
签名和URL均有带uploads，但是拼写错误不一致 | 403 Foribidden | SignatureDoesNotMatch | The request signature we calculated does not match the signature you provided. |
示例
POST /objectkey?uploads HTTP/1.1
Host: bucket.s3-cn-east-1.wcsapi.com
Date: Mon, 1 Apr 2017 20:34:56 GMT
Authorization: WOS AKIAIOSFODNN7EXAMPLE:VGhpcyBtZXNzYWdlIHNpZ25lZGGieSRlbHZpbmc=
HTTP/1.1 200 OK
x-wos-request-id: 996c76696e6727732072657175657374
Date: Mon, 1 Apr 2017 20:34:56 GMT
Content-Length: 146
Connection: keep-alive
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<InitiateMultipartUploadResult xmlns="https://www.wangsu.com/document">
<Bucket>bucket01</Bucket>
<Key>objectkey</Key>
<UploadId>DCD2FC98B4F70000013DF578ACA318E7</UploadId>
</InitiateMultipartUploadResult>