Updated on 2024-06-21 GMT+08:00

Renaming an Object (SDK for Go)

Function

This API renames an object in the parallel file system (PFS).

Restrictions

Method

func (obsClient ObsClient) RenameFile(input *RenameFileInput) (output *RenameFileOutput, err error)

Request Parameters

Table 1 List of request parameters

Parameter

Type

Mandatory (Yes/No)

Description

input

*RenameFileInput

Yes

Explanation:

Request parameters for renaming an object. For details, see Table 2.

Table 2 RenameFileInput

Parameter

Type

Mandatory (Yes/No)

Description

Bucket

string

Yes

Explanation:

PFS name.

Restrictions:

  • A PFS name must be unique across all accounts and regions.
  • A PFS name:
    • Must be 3 to 63 characters long and start with a digit or letter. Lowercase letters, digits, hyphens (-), and periods (.) are allowed.
    • Cannot be formatted as an IP address.
    • Cannot start or end with a hyphen (-) or period (.).
    • Cannot contain two consecutive periods (..), for example, my..bucket.
    • Cannot contain a period (.) and a hyphen (-) adjacent to each other, for example, my-.bucket or my.-bucket.
  • If you repeatedly create PFSs with the same name in the same region, no error will be reported and the PFS attributes comply with those set in the first creation request.

Default value:

None

Key

string

Yes

Explanation:

Directory name. It is the complete path of a directory in a PFS without the PFS name.

For example, if the access path is examplebucket.obs.ap-southeast-1.myhuaweicloud.com/folder/test.txt, the object name is folder/test.txt.

Value range:

The value can contain 1 to 1,024 characters.

Default value:

None

NewObjectKey

string

Yes

Explanation:

Explanation:

Name of the object after being renamed. An object is uniquely identified by an object name in a PFS. The object name does not contain the PFS name.

For example, if the access path is examplebucket.obs.ap-southeast-1.myhuaweicloud.com/folder/test.txt, the object name is folder/test.txt.

Value range:

The value can contain 1 to 1,024 characters.

Default value:

None

Responses

Table 3 List of returned results

Parameter

Type

Description

output

*RenameFileOutput

Explanation:

Returned results. For details, see Table 4.

err

error

Explanation:

Error messages returned by the API

Table 4 RenameFileOutput

Parameter

Type

Description

StatusCode

int

Explanation:

HTTP status code

Value range:

A status code is a group of digits indicating the status of a response. It ranges from 2xx (indicating successes) to 4xx or 5xx (indicating errors). For more information, see Status Code.

Default value:

None

RequestId

string

Explanation:

Request ID returned by the OBS server

Default value:

None

ResponseHeaders

map[string][]string

Explanation:

HTTP response headers

Default value:

None

Code Examples

This example renames object folderName/originalObjectName in the PFS examplebucket to newFolderName/newObjectName.
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package main
import (
    "fmt"
    "os"
    obs "github.com/huaweicloud/huaweicloud-sdk-go-obs/obs"
)
func main() {
    //Obtain an AK/SK pair using environment variables or import an AK/SK pair in other ways. Using hard coding may result in leakage.
    //Obtain an AK/SK pair on the management console. For details, see https://support.huaweicloud.com/intl/en-us/usermanual-ca/ca_01_0003.html.
    ak := os.Getenv("AccessKeyID")
    sk := os.Getenv("SecretAccessKey")
    // (Optional) If you use a temporary AK/SK pair and a security token to access OBS, you are advised not to use hard coding, which may result in information leakage. You can obtain an AK/SK pair using environment variables or import an AK/SK pair in other ways.
    securityToken := os.Getenv("SecurityToken")
    // Enter the endpoint corresponding to the region where the bucket is located. CN-Hong Kong is used here as an example. Replace it with the one currently in use.
    endPoint := "https://obs.ap-southeast-1.myhuaweicloud.com"
    // Create an obsClient instance.
    // If you use a temporary AK/SK pair and a security token to access OBS, use the obs.WithSecurityToken method to specify a security token when creating an instance.
    obsClient, err := obs.New(ak, sk, endPoint, obs.WithSecurityToken(securityToken))
    if err != nil {
        fmt.Printf("Create obsClient error, errMsg: %s", err.Error())
    }
    input := &obs.RenameFileInput{}
    // Specify the name of the PFS.
    input.Bucket = "examplebucket"
    // Specify the current object name. folderName/originalObjectName is used as an example.
    input.Key = "folderName/originalObjectName"
    // Specify the new object name. newFolderName/newObjectName is used as an example.
    input.NewObjectKey = "newFolderName/newObjectName"
    // Rename the object.
    output, err := obsClient.RenameFile(input)
    if err == nil {
        fmt.Printf("Rename File(%s) successful with bucket(%s)!\n", input.Key, input.Bucket)
        fmt.Printf("RequestId:%s\n", output.RequestId)
        return
    }
    fmt.Printf("Rename File(%s) fail with bucket(%s)!\n", input.Key, input.Bucket)
    if obsError, ok := err.(obs.ObsError); ok {
        fmt.Println("An ObsError was found, which means your request sent to OBS was rejected with an error response.")
        fmt.Println(obsError.Error())
    } else {
        fmt.Println("An Exception was found, which means the client encountered an internal problem when attempting to communicate with OBS, for example, the client was unable to access the network.")
        fmt.Println(err)
    }
}