Updated on 2026-05-12 GMT+08:00

Querying the List of Instance Groups

Function

This API is used to query the list of instance groups.

Calling Method

For details, see Calling APIs.

URI

GET /v1/{project_id}/premium-waf/pools

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Definition

Project ID. To obtain it, log in to the Huawei Cloud console, click the username, choose My Credentials, and find the project ID in the Projects list.

Constraints

N/A

Range

N/A

Default Value

N/A

Table 2 Query Parameters

Parameter

Mandatory

Type

Description

enterprise_project_id

No

String

Definition

Obtain the enterprise project ID by calling the ListEnterpriseProject API of Enterprise Project Management Service (EPS). To obtain the resource details in all enterprise projects of a user, set this parameter to all_granted_eps.

Constraints

N/A

Range

  • 0: the default enterprise project.

  • all_granted_eps: all enterprise projects.

  • A specific enterprise project ID: Enter a maximum of 36 characters.

Default Value

0

page

No

Integer

Definition

Page number of the data to be returned in a query.

Constraints

N/A

Range

The valid range of page depends on the total data volume and the value of pagesize. The value cannot be greater than the total number of pages.

Default Value

1

pagesize

No

Integer

Definition

Number of results per page in a query.

Constraints

N/A

Range

[0,100]

Default Value

10

name

No

String

Definition

Instance group name for fuzzy query.

Constraints

N/A

Range

N/A

Default Value

N/A

type

No

Array of strings

Definition

Instance group type.

Constraints

N/A

Range

  • elb: basic ELB type

  • elb-v2: ELB V2 type

  • elb-container: containerized ELB type

  • elb-shadow: SaaS-based ELB type

  • standard-container: dedicated engine group of reverse proxy (in the cloud, dedicated for bearer tenants)

  • standard-cloud: dedicated engine group of reverse proxy (in the cloud)

  • standard: dedicated engine group of reverse proxy (outside the cloud)

  • detector-cloud: dedicated engine group for out-of-path detection (in the cloud)

  • detector: dedicated engine group for out-of-path detection (outside the cloud)

  • standard-maf-cloud: MAF instance group type

Default Value

N/A

vpc_id

No

String

Definition

ID of the VPC associated with the instance group.

Constraints

N/A

Range

N/A

Default Value

N/A

detail

No

Boolean

Definition

Whether to query instance group details.

Constraints

N/A

Range

N/A

Default Value

N/A

Request Parameters

Table 3 Request header parameters

Parameter

Mandatory

Type

Description

X-Auth-Token

Yes

String

Definition

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

Constraints

N/A

Range

N/A

Default Value

N/A

Content-Type

Yes

String

Definition

Content type.

Constraints

N/A

Range

N/A

Default Value

application/json;charset=utf8

Response Parameters

Status code: 200

Table 4 Response body parameters

Parameter

Type

Description

total

Long

Total number of instance groups.

items

Array of PremiumWafPoolResponse objects

Instance group list.

Table 5 PremiumWafPoolResponse

Parameter

Type

Description

id

String

Instance group ID.

name

String

Instance group name.

region

String

Region where the instance group is located.

type

String

Instance group type.

vpc_id

String

ID of the VPC associated with the instance group.

description

String

Instance group description.

hosts

Array of IdNameEntry objects

Protected domain name associated with the instance group.

instances

Array of IdNameEntry objects

Engine instance associated with the instance group.

enterprise_project_id

String

ID of the enterprise project associated with the instance group.

create_time

Long

Time when the instance group was created.

Table 6 IdNameEntry

Parameter

Type

Description

id

String

Resource ID.

name

String

Resource name.

service_ip

String

Engine instance IP address.

Status code: 400

Table 7 Response body parameters

Parameter

Type

Description

error_code

String

Error code.

error_msg

String

Error message.

encoded_authorization_message

String

You can call the decode-authorization-message interface of the STS service to decode the rejection reason. For details, see the STS5 joint commissioning and self-verification. This parameter is returned only when an IAM 5 authentication error occurs.

details

Array of IAM5ErrorDetails objects

The set of error messages reported when a downstream service is invoked. This parameter is returned only when an IAM 5 authentication error occurs.

Table 8 IAM5ErrorDetails

Parameter

Type

Description

error_code

String

Error codes of the downstream service.

error_msg

String

Error messages of the downstream service.

Status code: 401

Table 9 Response body parameters

Parameter

Type

Description

error_code

String

Error code.

error_msg

String

Error message.

encoded_authorization_message

String

You can call the decode-authorization-message interface of the STS service to decode the rejection reason. For details, see the STS5 joint commissioning and self-verification. This parameter is returned only when an IAM 5 authentication error occurs.

details

Array of IAM5ErrorDetails objects

The set of error messages reported when a downstream service is invoked. This parameter is returned only when an IAM 5 authentication error occurs.

Table 10 IAM5ErrorDetails

Parameter

Type

Description

error_code

String

Error codes of the downstream service.

error_msg

String

Error messages of the downstream service.

Status code: 500

Table 11 Response body parameters

Parameter

Type

Description

error_code

String

Error code.

error_msg

String

Error message.

encoded_authorization_message

String

You can call the decode-authorization-message interface of the STS service to decode the rejection reason. For details, see the STS5 joint commissioning and self-verification. This parameter is returned only when an IAM 5 authentication error occurs.

details

Array of IAM5ErrorDetails objects

The set of error messages reported when a downstream service is invoked. This parameter is returned only when an IAM 5 authentication error occurs.

Table 12 IAM5ErrorDetails

Parameter

Type

Description

error_code

String

Error codes of the downstream service.

error_msg

String

Error messages of the downstream service.

Example Requests

Query the instance groups whose names contain "test".

GET https://{endpoint}/v1/{project_id}/premium-waf/pools?name=test

Example Responses

Status code: 200

Dedicated engine information list.

{
  "total" : 1,
  "items" : [ {
    "id" : "id_01fc8212735e",
    "name" : "name_591ba3909d95",
    "region" : "region_fda9ff0a2bbf",
    "type" : "type_e26377ec3eef",
    "vpc_id" : "vpc_id_175c24dd75fb",
    "description" : "description_3d330a56018a",
    "hosts" : [ {
      "id" : "id_98790a4990a1",
      "name" : "www.test.com"
    } ],
    "instances" : [ {
      "id" : "id_ee72b93b0f94",
      "name" : "name_78b221e9a884",
      "service_ip" : "1.1.1.1"
    } ],
    "enterprise_project_id" : "0",
    "create_time" : 0
  } ]
}

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.waf.v1.region.WafRegion;
import com.huaweicloud.sdk.waf.v1.*;
import com.huaweicloud.sdk.waf.v1.model.*;


public class ListInstancePoolsSolution {

    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);

        WafClient client = WafClient.newBuilder()
                .withCredential(auth)
                .withRegion(WafRegion.valueOf("<YOUR REGION>"))
                .build();
        ListInstancePoolsRequest request = new ListInstancePoolsRequest();
        try {
            ListInstancePoolsResponse response = client.listInstancePools(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 huaweicloudsdkwaf.v1.region.waf_region import WafRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkwaf.v1 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 = WafClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(WafRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = ListInstancePoolsRequest()
        response = client.list_instance_pools(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"
    waf "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/waf/v1"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/waf/v1/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/waf/v1/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, err := basic.NewCredentialsBuilder().
        WithAk(ak).
        WithSk(sk).
        WithProjectId(projectId).
        SafeBuild()

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

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


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

    client := waf.NewWafClient(hcClient)

    request := &model.ListInstancePoolsRequest{}
	response, err := client.ListInstancePools(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

Dedicated engine information list.

400

Request failed.

401

The token does not have required permissions.

500

Internal server error.

Error Codes

See Error Codes.