Help Center> Object Storage Service> SDK Reference> Go> APIs Related to Multipart Upload> Copying a Part
View PDF

Copying a Part

API Description

After a multipart upload is initialized, you can use this API to copy a part of a multipart upload task to a specified bucket.

Method Definition

func (obsClient ObsClient) CopyPart(input *CopyPartInput) (output *CopyPartOutput, err error)

Method Definition If a Signed URL Is Used

func (obsClient ObsClient) CopyPartWithSignedUrl(signedUrl string, actualSignedRequestHeaders http.Header) (output *CopyPartOutput, err error)

Request Parameters

Field

Type

Optional or Mandatory

input

*CopyPartInput

Mandatory

Returned Results

Field

Type

output

*CopyPartOutput

err

error

Sample Code

func main() {
       input := &obs.CopyPartInput{}
       input.Bucket = "bucketname"
       input.Key = "objectkey"
       input.CopySourceBucket = "sourcebucketname"
       input.CopySourceKey = "sourceobjectkey"
       input.UploadId = "uploadid"
       input.PartNumber = 1
       input.CopySourceRangeStart = 0
       input.CopySourceRangeEnd = 1024
       output, err := obsClient.CopyPart(input)
       if err == nil {
              fmt.Printf("RequestId:%s\n", output.RequestId)
              fmt.Printf("ETag:%s\n", output.ETag)
       } else {
              if obsError, ok := err.(obs.ObsError); ok {
                     fmt.Println(obsError.Code)
                     fmt.Println(obsError.Message)
              } else {
                     fmt.Println(err)
              }
       }
}