Returns the content length of the HTTP response.

ETag getter/setter. ETag is calculated in the OSS server side by using the 128bit MD5 result on the object content. It's the hex string.

The CRC value of the object. It's calculated by ECMA-182.

Returns the status code of the HTTP response.

The next append position

Gets and sets the RequestId property. ID that uniquely identifies a request. Aliyun keeps track of request IDs. If you have a question about a request, include the request ID in your correspondence.

Contains additional information about the request, such as the md5 value of the object.