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

API Description

After a multipart upload is initialized, you can use this API to upload a part to a specified bucket by using the multipart upload ID. Except for the part last uploaded whose size ranges from 0 to 5 GB, sizes of the other parts range from 100 KB to 5 GB. The upload part ID ranges from 1 to 10000.

Method Definition

func (obsClient ObsClient) UploadPart(input *UploadPartInput) (output *UploadPartOutput, err error)

Method Definition If a Signed URL Is Used

func (obsClient ObsClient) UploadPartWithSignedUrl(signedUrl string, actualSignedRequestHeaders http.Header, data io.Reader) (output *UploadPartOutput, err error)

Request Parameters

Field

Type

Optional or Mandatory

input

*UploadPartInput

Mandatory

Returned Results

Field

Type

output

*UploadPartOutput

err

error

Sample Code

func main() {
       input := &obs.UploadPartInput{}
       input.Bucket = "bucketname"
       input.Key = "objectkey"
       input.UploadId = "uploadid"
       input.PartNumber = 1
       input.Body = strings.NewReader("Hello OBS")
       output, err := obsClient.UploadPart(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)
              }
       }
}