Updated on 2026-09-28 GMT+08:00

Querying a Custom Line

Function

This API is used to query a custom line.

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, the following identity policy-based permissions are required.

    Action

    Access Level

    Resource Type (*: required)

    Condition Key

    Alias

    Dependencies

    dns:customLine:list

    List

    customLine *

    -

    -

    -

URI

GET /v2.1/customlines

Table 1 Query Parameters

Parameter

Mandatory

Type

Description

line_id

No

String

Definition

Resolution line ID. To obtain the value, call the API (ListCustomLine) for querying custom lines.

Constraints

N/A

Range

N/A

Default Value

N/A

name

No

String

Definition

Resolution line name.

Constraints

N/A

Range

N/A

Default Value

N/A

limit

No

Integer

Definition

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

Constraints

If you set show_detail to true to query detailed information, the value ranges from 0 to 100, and 10, 20, or 50 are common values. If you set show_detail to false to query brief information, the value ranges from 0 to 3000.

Range

0 to 100 for querying detailed information; 0 to 3000 for querying brief information

Default Value

100 for querying detailed information; 3000 for querying brief information

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

This field is used together with limit for pagination query.

Range

0 to 2147483647

Default Value

0

show_detail

No

Boolean

Definition

Whether to query details.

Constraints

N/A

Range

  • true: Query detailed information.

  • false: Query brief information.

Default Value

true

status

No

String

Definition

Resource status.

Constraints

N/A

Range

  • ACTIVE: Normal

  • PENDING_CREATE: Creating

  • PENDING_UPDATE: Updating

  • PENDING_DELETE: Deleting

  • PENDING_FREEZE: Freezing

  • FREEZE: Frozen

  • ERROR: Failed

Default Value

N/A

ip

No

String

Definition

IP address range.

Constraints

N/A

Range

N/A

Default Value

N/A

Request Parameters

Table 2 Request header parameters

Parameter

Mandatory

Type

Description

X-Auth-Token

Yes

String

Definition

User token, which is used for identity authentication. It must be carried in the request header to verify the user identity during API calls.

You can obtain it by calling the IAM API for obtaining a user token. The value of X-Subject-Token in the response header is the user token.

For details about how to obtain a user token, see Obtaining a User Token.

Constraints

N/A

Range

N/A

Default Value

N/A

Response Parameters

Status code: 200

Table 3 Response body parameters

Parameter

Type

Description

lines

Array of line objects

Definition

Line list. This field is an array. Each element contains information such as the line ID, name, and IP address range.

metadata

metadata object

Definition

The number of resources that meet filter conditions.

Table 4 line

Parameter

Type

Description

line_id

String

Definition

Resolution line ID.

Range

N/A

name

String

Definition

Resolution line name.

Range

N/A

ip_segments

Array of strings

Definition

IP address range. This field is a string array. Each element is an IP address range, which is used to define the IP address resolution range of the custom line.

created_at

String

Definition

Creation time.

The value must be a UTC+0 time in format of yyyy-MM-dd'T'HH:mm:ss.SSS, for example, 2023-01-01T12:00:00.000.

Range

N/A

updated_at

String

Definition

Update time.

The value must be a UTC+0 time in format of yyyy-MM-dd'T'HH:mm:ss.SSS, for example, 2023-01-01T12:00:00.000.

Range

N/A

status

String

Definition

Resource status.

Range

  • ACTIVE: Normal

  • PENDING_CREATE: Creating

  • PENDING_UPDATE: Updating

  • PENDING_DELETE: Deleting

  • PENDING_FREEZE: Freezing

  • FREEZE: Frozen

  • ERROR: Failed

description

String

Definition

Custom line description.

Range

N/A

Table 5 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

None

Example Responses

Status code: 200

{
  "lines" : [ {
    "line_id" : "custom_2ce45ef669fc87870169fcbada7a0007",
    "name" : "customline",
    "ip_segments" : [ "1.1.1.1-1.1.1.1", "1.1.1.2-1.1.1.3" ],
    "status" : "ACTIVE",
    "created_at" : "2019-04-10T10:03:17.827",
    "updated_at" : "2019-04-10T10:03:57.207",
    "description" : "1234"
  } ],
  "metadata" : {
    "total_count" : 1
  }
}

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 ListCustomLineSolution {

    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();
        ListCustomLineRequest request = new ListCustomLineRequest();
        try {
            ListCustomLineResponse response = client.listCustomLine(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 = ListCustomLineRequest()
        response = client.list_custom_line(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, err := basic.NewCredentialsBuilder().
        WithAk(ak).
        WithSk(sk).
        SafeBuild()

    if err != nil {
        fmt.Println(err)
        return
    }

    hcClient, err := dns.DnsClientBuilder().
         WithRegion(region.ValueOf("<YOUR REGION>")).
         WithCredential(auth).
         SafeBuild()


    if err != nil {
        fmt.Println(err)
        return
    }

    client := dns.NewDnsClient(hcClient)

    request := &model.ListCustomLineRequest{}
	response, err := client.ListCustomLine(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

Successful request

Error Codes

See Error Codes.