Help Center/ Object Storage Migration Service/ API Reference/ APIs V2 (Recommended)/ Synchronization Task Management/ Listing Synchronization Tasks

Updated on 2025-03-31 GMT+08:00

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Listing Synchronization Tasks

Function

This API is used to list all synchronization tasks in an account.

Calling Method

For details, see Calling APIs.

URI

GET /v2/{project_id}/sync-tasks

**Table 1** Path parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	The project ID. Minimum length: 1 character Maximum length: 1,024 characters

**Table 2** Query parameters
Parameter	Mandatory	Type	Description
limit	No	Integer	The maximum number of synchronization tasks displayed on one page. By default, 10 synchronization tasks are displayed on one page. A maximum of 100 synchronization tasks can be displayed. Minimum value: 1 Maximum value: 100 Default value: 10
offset	No	Integer	The start serial number of synchronization tasks. The value must be greater than or equal to 0. If offset is set to 0, the query starts from the first record. Minimum value: 0 Maximum value: 10000 Default value: 0
status	No	String	The synchronization task status. If this parameter is not specified, tasks in all statuses are queried. SYNCHRONIZING: a synchronizing status STOPPED: a stopped status Minimum length: 0 characters Maximum length: 255 characters

Request

**Table 3** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	The token used for IAM authentication. Minimum length: 1 character Maximum length: 16,384 characters

Response

Status code: 200

**Table 4** Response body parameters
Parameter	Type	Description
tasks	Array of SyncTaskInfo objects	The details of queried synchronization tasks. Array length: 0 to 100
count	Long	The total number of the synchronization tasks that meet the query criteria. Minimum value: 0 Maximum value: 9223372036854775807

**Table 5** **SyncTaskInfo** field description
Parameter	Type	Description
sync_task_id	String	The synchronization task ID. Minimum length: 0 characters Maximum length: 255 characters
src_cloud_type	String	The source cloud service provider. The value can be AWS, Azure, Aliyun, Tencent, HuaweiCloud, QingCloud, KingsoftCloud, Baidu, Qiniu, or UCloud. The default value is Aliyun. The value can be: AWS Azure Aliyun Tencent HuaweiCloud QingCloud KingsoftCloud Baidu Qiniu UCloud
src_region	String	The region where the source bucket is located. Minimum length: 0 characters Maximum length: 100 characters
src_bucket	String	The name of the source bucket. Minimum length: 0 characters Maximum length: 1,024 characters
create_time	Long	The time (Unix timestamp, in milliseconds) when the synchronization task was created. Minimum value: 0 Maximum value: 9223372036854775807
last_start_time	Long	The last time (Unix timestamp, in milliseconds) when the synchronization task was started. Minimum value: 0 Maximum value: 9223372036854775807
dst_bucket	String	The name of the destination bucket. Minimum length: 0 characters Maximum length: 1,024 characters
dst_region	String	The region where the destination bucket is located. Minimum length: 0 characters Maximum length: 100 characters
description	String	The task description, which cannot exceed 255 characters. The following special characters are not allowed: <>()"'& Minimum length: 0 characters Maximum length: 255 characters
status	String	The synchronization task status. SYNCHRONIZING: a synchronizing status STOPPED: a stopped status The value can be: SYNCHRONIZING STOPPED
enable_kms	Boolean	Indicates whether KMS encryption is enabled. This function is disabled by default.
enable_metadata_migration	Boolean	Indicates whether metadata migration is enabled. The default value is false. Even if this function is disabled, the ContentType metadata will still be migrated to ensure a successful migration.
enable_restore	Boolean	Indicates whether archive data restoration is enabled. If this function is enabled, archive data is automatically restored and migrated.
app_id	String	This parameter is mandatory when cloud_type is Tencent. Minimum length: 0 characters Maximum length: 255 characters
source_cdn	SourceCdnResp object	Indicates whether migration from CDN is enabled. If it is enabled, the source objects to be migrated are obtained from the specified CDN domain name during migration. If this field is included, migration from CDN is supported. Otherwise, it is not supported.
object_overwrite_mode	String	Indicates whether to skip a source object or allow the source object to overwrite its paired destination object. The default value is SIZE_LAST_MODIFIED_COMPARISON_OVERWRITE. NO_OVERWRITE indicates the system never allows overwrite. The system always skips source objects and keeps their paired destination objects. SIZE_LAST_MODIFIED_COMPARISON_OVERWRITE indicates the system allows overwrite based on the results of size or modification time checks. It is the default setting. If a source object is not as large as or was last modified more recently than its paired destination object, the source object will overwrite the destination object. Otherwise, the source object will be skipped. CRC64_COMPARISON_OVERWRITE indicates the system allows overwrite if the source and destination objects have different CRC64 checksums. This option is only available for migration on Huawei Cloud or from Alibaba Cloud or Tencent Cloud. If a source object has a CRC64 checksum different from the paired destination object, the source object will overwrite the destination object. Otherwise, the source object will be skipped. If one of them does not have a CRC64 checksum, their sizes and last modification times are checked. FULL_OVERWRITE indicates the system always allows overwrite. The system always allows source objects to overwrite their paired destination objects. The value can be: NO_OVERWRITE SIZE_LAST_MODIFIED_COMPARISON_OVERWRITE CRC64_COMPARISON_OVERWRITE FULL_OVERWRITE
dst_storage_policy	String	The destination storage class. This parameter is required only when the destination is Huawei Cloud OBS. The default value is STANDARD. STANDARD: Huawei Cloud OBS Standard storage IA: Huawei Cloud OBS Infrequent Access storage ARCHIVE: Huawei Cloud OBS Archive storage DEEP_ARCHIVE: Huawei Cloud OBS Deep Archive storage SRC_STORAGE_MAPPING: converts the source storage class into an OBS storage class based on the predefined rules. Default value: STANDARD Minimum length: 0 characters Maximum length: 128 characters The value can be: STANDARD IA ARCHIVE DEEP_ARCHIVE SRC_STORAGE_MAPPING
consistency_check	String	The consistency check method, which is used to check whether objects are consistent before and after migration. The selected check method and results will be recorded in the object list. The default value is size_last_modified. size_last_modified: It is the default setting. The system checks object consistency with object size and last modification time. If a source object is as large as but was last modified earlier than its paired destination object, the system considers the source object has been already migrated successfully. crc64: This option is only available for migration on Huawei Cloud or from Alibaba Cloud or Tencent Cloud. If a source object and its paired destination object have CRC64 checksums, the checksums are checked. Otherwise, their sizes and last modification times are checked. no_check: This option is only available for migration of HTTP/HTTPS data. This option takes effect for source objects whose sizes cannot be obtained from the Content-Length field in the standard HTTP protocol. These source objects are marked as successfully migrated. If the size of a source object can be obtained from the Content-Length field in the standard HTTP protocol, its size and last modification time will be checked. The value can be: size_last_modified crc64 no_check

**Table 6** **SourceCdnResp** field description
Parameter	Type	Description
domain	String	The domain name from which to obtain objects to be migrated. Minimum length: 0 characters Maximum length: 1,024 characters
protocol	String	The protocol type. The value can be: http https
authentication_type	String	The authentication type. NONE, QINIU_PRIVATE_AUTHENTICATION, ALIYUN_OSS_A, ALIYUN_OSS_B, ALIYUN_OSS_C, KSYUN_PRIVATE_AUTHENTICATION, AZURE_SAS_TOKEN,TENCENT_COS_A,TENCENT_COS_B,TENCENT_COS_C,TENCENT_COS_D The value can be: NONE QINIU_PRIVATE_AUTHENTICATION ALIYUN_OSS_A ALIYUN_OSS_B ALIYUN_OSS_C KSYUN_PRIVATE_AUTHENTICATION AZURE_SAS_TOKEN TENCENT_COS_A TENCENT_COS_B TENCENT_COS_C TENCENT_COS_D

Status code: 400

**Table 7** Response body parameters
Parameter	Type	Description
error_msg	String	The error message.
error_code	String	The error code.

Example Request

This example queries five synchronization tasks in the 2c0689c860ad4728a497c91ec0844383 project.

GET https://{endpoint}/v2/2c0689c860ad4728a497c91ec0844383/sync-tasks?offset=0&limit=5&status=SYNCHRONIZING

Example Response

Status code: 200

{
  "tasks" : [ {
    "sync_task_id" : "d18befdd-eb82-41f3-8019-bbb593d74a3e",
    "src_cloud_type" : "HuaweiCloud",
    "src_region" : "cn-north-7",
    "src_bucket" : "oms-sdk-test-src",
    "create_time" : 1700639560751,
    "last_start_time" : 1700639560751,
    "dst_bucket" : "oms-sdk-test-dst",
    "dst_region" : "cn-north-7",
    "description" : "sync task test",
    "status" : "SYNCHRONIZING",
    "enable_kms" : false,
    "enable_metadata_migration" : false,
    "enable_restore" : false,
    "app_id" : null,
    "source_cdn" : null,
    "object_overwrite_mode" : "SIZE_LAST_MODIFIED_COMPARISON_OVERWRITE",
    "dst_storage_policy" : null,
    "consistency_check" : "size_last_modified"
  } ],
  "count" : 1
}

SDK Sample Code

The sample code is as follows.

Java

    
     
       
       
         package com.huaweicloud.sdk.test;

import com.huaweicloud.sdk.core.auth.ICredential;
import com.huaweicloud.sdk.core.auth.BasicCredentials;
import com.huaweicloud.sdk.core.exception.ConnectionException;
import com.huaweicloud.sdk.core.exception.RequestTimeoutException;
import com.huaweicloud.sdk.core.exception.ServiceResponseException;
import com.huaweicloud.sdk.oms.v2.region.OmsRegion;
import com.huaweicloud.sdk.oms.v2.*;
import com.huaweicloud.sdk.oms.v2.model.*;


public class ListSyncTasksSolution {

    public static void main(String[] args) {
        // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
        // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
        String ak = System.getenv("CLOUD_SDK_AK");
        String sk = System.getenv("CLOUD_SDK_SK");
        String projectId = "{project_id}";

        ICredential auth = new BasicCredentials()
                .withProjectId(projectId)
                .withAk(ak)
                .withSk(sk);

        OmsClient client = OmsClient.newBuilder()
                .withCredential(auth)
                .withRegion(OmsRegion.valueOf("<YOUR REGION>"))
                .build();
        ListSyncTasksRequest request = new ListSyncTasksRequest();
        try {
            ListSyncTasksResponse response = client.listSyncTasks(request);
            System.out.println(response.toString());
        } catch (ConnectionException e) {
            e.printStackTrace();
        } catch (RequestTimeoutException e) {
            e.printStackTrace();
        } catch (ServiceResponseException e) {
            e.printStackTrace();
            System.out.println(e.getHttpStatusCode());
            System.out.println(e.getRequestId());
            System.out.println(e.getErrorCode());
            System.out.println(e.getErrorMsg());
        }
    }
}

        

      

    
   

Python

    
     
       
       
         # coding: utf-8

import os
from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkoms.v2.region.oms_region import OmsRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkoms.v2 import *

if __name__ == "__main__":
    # The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    # In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak = os.environ["CLOUD_SDK_AK"]
    sk = os.environ["CLOUD_SDK_SK"]
    projectId = "{project_id}"

    credentials = BasicCredentials(ak, sk, projectId)

    client = OmsClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(OmsRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = ListSyncTasksRequest()
        response = client.list_sync_tasks(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)

        

      

    
   

Go

    
     
       
       
         package main

import (
	"fmt"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
    oms "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/oms/v2"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/oms/v2/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/oms/v2/region"
)

func main() {
    // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak := os.Getenv("CLOUD_SDK_AK")
    sk := os.Getenv("CLOUD_SDK_SK")
    projectId := "{project_id}"

    auth := basic.NewCredentialsBuilder().
        WithAk(ak).
        WithSk(sk).
        WithProjectId(projectId).
        Build()

    client := oms.NewOmsClient(
        oms.OmsClientBuilder().
            WithRegion(region.ValueOf("<YOUR REGION>")).
            WithCredential(auth).
            Build())

    request := &model.ListSyncTasksRequest{}
	response, err := client.ListSyncTasks(request)
	if err == nil {
        fmt.Printf("%+v\n", response)
    } else {
        fmt.Println(err)
    }
}

        

      

    
   

For more SDK sample code of programming languages, visit API Explorer and click the Sample Code tab. Example code can be automatically generated.

Status Codes

Status Code	Description
200	OK
400	Bad Request

Error Codes

For details, see Error Codes.

Parent topic: Synchronization Task Management

Previous topic: Creating a Synchronization Event

Next topic: Creating a Synchronization Task

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