Updated on 2025-11-17 GMT+08:00

Querying Preset Resolution Lines

Function

This API is used to query preset resolution lines.

Calling Method

For details, see Calling APIs.

Authorization Information

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

  • If you are using role/policy-based authorization, see Permissions Policies and Supported Actions for details on the required permissions.
  • If you are using identity policy-based authorization, no identity policy-based permission required for calling this API.

URI

GET /v2.1/system-lines

Table 1 Query Parameters

Parameter

Mandatory

Type

Description

locale

No

String

Definition

The display language.

Constraints

N/A

Range

  • zh-cn: Chinese

  • en-us: English

  • es-us: Spanish

  • pt-br: Portuguese

Default Value

zh-cn

limit

No

Integer

Definition

The number of records returned on each page during pagination query.

Constraints

N/A

Range

0 to 1000

Default Value

1000

offset

No

Integer

Definition

The offset of pagination query. It specifies the number of rows or records to skip from the beginning of the result set before retrieving the desired data.

Constraints

If marker is not left blank, the query starts from the resource specified by marker and the offset does not take effect.

Range

0 to 2147483647

Default Value

0

Request Parameters

None

Response Parameters

Status code: 200

Table 2 Response body parameters

Parameter

Type

Description

lines

Array of SystemLine objects

Definition

Line list.

Range

N/A

metadata

metadata object

Definition

Number of resources that meet the filter condition

Range

N/A

Table 3 SystemLine

Parameter

Type

Description

id

String

Definition

Line ID

Range

N/A

father_id

String

Definition

Parent line ID.

Range

N/A

name

String

Definition

Line name.

Range

N/A

Table 4 metadata

Parameter

Type

Description

total_count

Integer

Definition

Number of resources that meet the filter criteria. The number is irrelevant to limit or offset.

Range

N/A

Example Requests

Querying preset resolution lines

GET https://{endpoint}/v2.1/system-lines

Example Responses

Status code: 200

Querying preset resolution lines

{
  "lines" : [ {
    "id" : "default_view",
    "father_id" : "DEFAULT",
    "name" : "Default"
  }, {
    "id" : "AP",
    "father_id" : "REGION",
    "name" : "Asia Pacific"
  }, {
    "id" : "Dianxin",
    "father_id" : "ISP",
    "name" : "China Telecom"
  }, {
    "id" : "Dianxin_Huabei",
    "father_id" : "Dianxin",
    "name" : "North China"
  }, {
    "id" : "Dianxin_Beijing",
    "father_id" : "Dianxin_Huabei",
    "name" : "Beijing"
  } ]
}

SDK Sample Code

The SDK sample code is as follows.

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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.dns.v2.region.DnsRegion;
import com.huaweicloud.sdk.dns.v2.*;
import com.huaweicloud.sdk.dns.v2.model.*;


public class ListSystemLinesSolution {

    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");

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

        DnsClient client = DnsClient.newBuilder()
                .withCredential(auth)
                .withRegion(DnsRegion.valueOf("<YOUR REGION>"))
                .build();
        ListSystemLinesRequest request = new ListSystemLinesRequest();
        try {
            ListSystemLinesResponse response = client.listSystemLines(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());
        }
    }
}
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# coding: utf-8

import os
from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkdns.v2.region.dns_region import DnsRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkdns.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"]

    credentials = BasicCredentials(ak, sk)

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

    try:
        request = ListSystemLinesRequest()
        response = client.list_system_lines(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)
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package main

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

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

    client := dns.NewDnsClient(
        dns.DnsClientBuilder().
            WithRegion(region.ValueOf("<YOUR REGION>")).
            WithCredential(auth).
            Build())

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

For SDK sample code of more programming languages, see the Sample Code tab in API Explorer. SDK sample code can be automatically generated.

Status Codes

Status Code

Description

200

Querying preset resolution lines

Error Codes

See Error Codes.