Updated on 2026-08-25 GMT+08:00

Querying Historical Transaction Export Tasks

Function

After Collect Historical Transactions is enabled, this API is used to query historical transaction export tasks.

Authorization Information

Each account has permissions to call all APIs, but IAM users must have the required permissions specifically assigned.

If you are using role/policy-based authorization, see the required permissions in Permissions Policies and Supported Actions.
If you are using identity policy-based authorization, the following identity policy-based permissions are required.

Action

Access Level

Resource Type (*: required)

Condition Key

Alias

Dependencies

das::showCloudDBAInfo

Read

-

-

-

-

Action	Access Level	Resource Type (*: required)	Condition Key	Alias	Dependencies
das::showCloudDBAInfo	Read	-	-	-	-

URI

GET /v3/{project_id}/transaction/{instance_id}/get-export-task-list

**Table 1** URI parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Definition Project ID of a tenant in a region. To obtain this value, see Obtaining a Project ID. Constraints N/A Range The value can contain 32 characters. Only letters and digits are supported. Default Value N/A
instance_id	Yes	String	Definition Instance ID, which uniquely identifies an instance. You can obtain the instance ID from the instance list or instance details. Constraints N/A Range The value can contain 36 characters. Only letters and digits are allowed. Default Value N/A

**Table 2** Query parameters
Parameter	Mandatory	Type	Description
offset	No	Integer	Definition Index offset. The query starts from the next piece of data indexed by this parameter. If this parameter is set to 1 and limit is set to 10, only the second to eleventh records are displayed. Constraints N/A Range [0, 2^31-1] Default Value 0: The query starts from the first data record.
limit	No	Integer	Definition Number of records to be queried. If this parameter is set to 10, a maximum of 10 records can be displayed. Constraints N/A Range [1, 200] Default Value 100

Request Parameters

None

Response Parameters

Status code: 200

**Table 3** Response body parameters
Parameter	Type	Description
total	Integer	Definition Total size of the export task list Range N/A
task_list	Array of Table 4 objects	Definition Export task records

**Table 4** ExportTaskDetailResp
Parameter	Type	Description
task_id	Long	Definition Export task ID Range [0, 2^31-1]
instance_id	String	Definition Instance ID, which uniquely identifies an instance. You can obtain the instance ID from the instance list or instance details. Range The value can contain 36 characters. Only letters and digits are allowed.
task_status	Integer	Definition Task status Range N/A
start_time	Long	Definition Start time of an export task, in milliseconds Range N/A
end_time	Long	Definition End time of an export task, in milliseconds Range N/A
create_at	Long	Definition Creation time of an export task, in milliseconds Range N/A
export_line_num	Long	Definition Number of exported records Range N/A
download_url	String	Definition OBS download link of an exported file Range N/A

Example Requests

GET https://das.cn-north-1.myhuaweicloud.com/v3/054e292c9880d4992f02c0196d3ea468/transaction/da304cd5bbb944de828759bc7be3d3fein01/get-export-task-list?limit=10&offset=0

Example Responses

Status code: 200

Success.

{ 
  "total" : 2, 
  "task_list" : [ { 
    "task_id" : 1, 
    "instance_id" : "2154f176174041c68187401a968faa41in01", 
    "task_status" : 3, 
    "start_time" : 1758522650001, 
    "end_time" : 1758522650338, 
    "create_at" : 1758522640172, 
    "export_line_num" : 100, 
    "download_url" : "test_url"
  }, { 
    "task_id" : 2, 
    "instance_id" : "2154f176174041c68187401a968faa41in01", 
    "task_status" : 3, 
    "start_time" : 1758522650002, 
    "end_time" : 1758522650339, 
    "create_at" : 1758522640173, 
    "export_line_num" : 200, 
    "download_url" : "test_url"
  } ] 
}

Status Codes

Status Code	Description
200	Success.
400	Client error
500	Server error

Error Codes

See Error Codes.

Parent topic: Intelligent O&M