Help Center/ Distributed Message Service for RabbitMQ/ API Reference/ APIs V2 (Recommended)/ Managing Lifecycle/ Querying an Instance
Updated on 2025-08-15 GMT+08:00
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Querying an Instance

Function

This API is used to query the details about a specified instance.

Calling Method

For details, see Calling APIs.

URI

GET /v2/{project_id}/instances/{instance_id}

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Definition:

Project ID. For details, see Obtaining a Project ID.

Constraints:

N/A

Range:

N/A

Default Value:

N/A

instance_id

Yes

String

Definition:

Instance ID. You can call the API for querying all instances to obtain the instance ID. The instance ID is in the response body.

Constraints:

N/A

Range:

N/A

Default Value:

N/A

Request Parameters

None

Response Parameters

Status code: 200

Table 2 Response body parameters

Parameter

Type

Description

access_user

String

Parameter description:

Authentication username.

Value range:

N/A

broker_num

Integer

Parameter description:

Number of brokers.

Value range:

  • 1

  • 3

  • 5

  • 7

name

String

Parameter description:

Instance name.

Value range:

N/A

engine

String

Definition:

Engine type.

Range:

rabbitmq: RabbitMQ engine.

engine_version

String

Definition:

Version of the message engine.

Range:

  • 3.8.35

  • AMQP-0-9-1

specification

String

Parameter description:

Instance flavor.

Value range:

  • Single-node instance: VM flavor is returned.

  • Cluster instance: VM flavor and number of brokers are returned.

storage_space

Integer

Parameter description:

Message storage space, in GB.

Value range:

N/A

used_storage_space

Integer

Parameter description:

Used message storage space, in GB.

Value range:

N/A

dns_enable

Boolean

Parameter description:

Whether to enable domain name access to an instance.

Value range:

  • true: yes

  • false: no

connect_address

String

Parameter description:

Instance IP address for private access.

Value range:

N/A

connect_domain_name

String

Parameter description:

Instance domain name for private access.

Value range:

N/A

public_connect_address

String

Parameter description:

Instance IP address for public access.

Value range:

N/A

public_connect_domain_name

String

Parameter description:

Instance domain name for public access.

Value range:

N/A

port

Integer

Parameter description:

Instance port.

Value range:

N/A

status

String

Parameter description:

Instance status.

Value range:

For details, see Instance Status.

description

String

Parameter description:

Instance description.

Value range:

N/A

instance_id

String

Parameter description:

Instance ID.

Value range:

N/A

resource_spec_code

String

Definition:

Resource specification ID.

Range:

  • dms.instance.rabbitmq.single.c3.2u4g: single-node RabbitMQ instance, 2 vCPUs 4 GB (VM specifications)

  • dms.instance.rabbitmq.single.c3.4u8g: single-node RabbitMQ instance, 4 vCPUs 8 GB (VM specifications)

  • dms.instance.rabbitmq.single.c3.8u16g: single-node RabbitMQ instance, 8 vCPUs 16 GB (VM specifications)

  • dms.instance.rabbitmq.single.c3.16u32g: single-node RabbitMQ instance, 16 vCPUs 32 GB (VM specifications)

  • dms.instance.rabbitmq.cluster.c3.4u8g.3: cluster RabbitMQ instance, 4 vCPUs 8 GB (VM specifications), 3 nodes

  • dms.instance.rabbitmq.cluster.c3.4u8g.5: cluster RabbitMQ instance, 4 vCPUs 8 GB (VM specifications), 5 nodes

  • dms.instance.rabbitmq.cluster.c3.4u8g.7: cluster RabbitMQ instance, 4 vCPUs 8 GB (VM specifications), 7 nodes

  • dms.instance.rabbitmq.cluster.c3.8u16g.3: cluster RabbitMQ instance, 8 vCPUs 16 GB (VM specifications), 3 nodes

  • dms.instance.rabbitmq.cluster.c3.8u16g.5: cluster RabbitMQ instance, 8 vCPUs 16 GB (VM specifications), 5 nodes

  • dms.instance.rabbitmq.cluster.c3.8u16g.7: cluster RabbitMQ instance, 8 vCPUs 16 GB (VM specifications), 7 nodes

  • dms.instance.rabbitmq.cluster.c3.16u32g.3: cluster RabbitMQ instance, 16 vCPUs 32 GB (VM specifications), 3 nodes

  • dms.instance.rabbitmq.cluster.c3.16u32g.5: cluster RabbitMQ instance, 16 vCPUs 32 GB (VM specifications), 5 nodes

  • dms.instance.rabbitmq.cluster.c3.16u32g.7: cluster RabbitMQ instance, 16 vCPUs 32 GB (VM specifications), 7 nodes

charging_mode

Integer

Parameter description:

Billing mode.

Value range:

  • 1: Pay-per-use

  • 0: Yearly/Monthly

vpc_id

String

Parameter description:

VPC ID.

Value range:

N/A

vpc_name

String

Parameter description:

VPC name.

Value range:

N/A

created_at

String

Parameter description:

Time when the creation is complete. The time is in the format of timestamp, that is, the offset milliseconds from 1970-01-01 00:00:00 UTC to the specified time.

Value range:

N/A

user_id

String

Parameter description:

User ID.

Value range:

N/A

user_name

String

Parameter description:

Username.

Value range:

N/A

order_id

String

Parameter description:

Indicates an order ID. This parameter has a value only when the billing mode is yearly/monthly mode.

Value range:

N/A

maintain_begin

String

Parameter description:

Time at which the maintenance window starts. The format is HH:mm:ss.

Value range:

N/A

maintain_end

String

Parameter description:

Time at which the maintenance window ends. The format is HH:mm:ss.

Value range:

N/A

enable_publicip

Boolean

Parameter description:

Indicates whether to enable public access for a RabbitMQ instance.

Value range:

  • true: yes

  • false: no

publicip_address

String

Parameter description:

Indicates the EIP bound to a RabbitMQ instance.

The value of this parameter is null if public access is disabled.

Value range:

  • true: yes

  • false: no

publicip_id

String

Parameter description:

Indicates the ID of the EIP bound to a RabbitMQ instance.

The value of this parameter is null if public access is disabled.

Value range:

N/A

management_connect_address

String

Parameter description:

Management address of a RabbitMQ instance.

Value range:

N/A

management_connect_domain_name

String

Parameter description:

Management domain name of a RabbitMQ instance.

Value range:

N/A

public_management_connect_address

String

Parameter description:

Public management address of a RabbitMQ instance.

Value range:

N/A

public_management_connect_domain_name

String

Parameter description:

Public management domain name of a RabbitMQ instance.

Value range:

N/A

ssl_enable

Boolean

Parameter description:

Whether security authentication is enabled.

Value range:

  • true: yes

  • false: no

enterprise_project_id

String

Parameter description:

Enterprise project ID.

Value range:

N/A

is_logical_volume

Boolean

Parameter description:

Distinguishes old instances from new instances during instance capacity expansion.

Value range:

  • true: New instance, which allows dynamic disk capacity expansion without restarting the instance.

  • false: Some old instance, which does not support disk capacity expansion.

extend_times

Integer

Parameter description:

Indicates the number of disk expansion times. If it exceeds 20, the disk cannot be expanded.

Value range:

N/A

type

String

Parameter description:

Instance type.

Value range:

  • single: single-node

  • cluster: cluster

product_id

String

Parameter description:

Product ID.

Value range:

N/A

security_group_id

String

Parameter description:

Security group ID.

Value range:

N/A

security_group_name

String

Parameter description:

Name of the tenant security group.

Value range:

N/A

subnet_id

String

Parameter description:

Subnet ID.

Value range:

N/A

available_zones

Array of strings

Parameter description:

ID of the AZ where an instance node is located.

available_zone_names

Array of strings

Parameter description:

Name of the AZ where an instance node is located.

total_storage_space

Integer

Parameter description:

Total message storage space, in GB.

Value range:

N/A

storage_resource_id

String

Parameter description:

Storage resource ID.

Value range:

N/A

storage_spec_code

String

Parameter description:

I/O specification.

Value range:

N/A

ipv6_enable

Boolean

Parameter description:

Whether IPv6 is enabled.

Value range:

  • true: yes

  • false: no

ipv6_connect_addresses

Array of strings

Parameter description:

IPv6 connection address.

tags

Array of TagEntity objects

Parameter description:

Tag list.
Table 3 TagEntity

Parameter

Type

Description

key

String

Parameter description:

Tag key.

Value range:

N/A

value

String

Parameter description:

Tag value.

Value range:

N/A

Example Requests

Querying details of a specified instance

GET https://{endpoint}/v2/{project_id}/instances/{instance_id}

Example Responses

Status code: 200

The specified instance is queried successfully.

{
  "name" : "api-explorer",
  "engine" : "rabbitmq",
  "port" : 5672,
  "status" : "RUNNING",
  "type" : "single",
  "specification" : "2vCPUs 4GB",
  "engine_version" : "3.8.35",
  "connect_address" : "192.168.0.74",
  "instance_id" : "de873040-d661-4770-aa96-9329c71d7c8a",
  "resource_spec_code" : "dms.instance.rabbitmq.single.c3.2u4g",
  "charging_mode" : 1,
  "vpc_id" : "40a6501e-85ca-4449-a0db-b8bc7f0cec28",
  "vpc_name" : "vpc-a400",
  "created_at" : "1590047080687",
  "product_id" : "00300-30109-0--0",
  "security_group_id" : "bfd68e26-f8ef-4a91-a373-0a8f5c198601",
  "security_group_name" : "Sys-default",
  "subnet_id" : "a7f9a564-30dd-4059-8124-364ca6554578",
  "available_zones" : [ "9f1c5806706d4c1fb0eb72f0a9b18c77" ],
  "available_zone_names" : [ "AZ1" ],
  "user_id" : "3df5acbc24a54fadb62a043c9000a307",
  "user_name" : "paas_dms_01",
  "maintain_begin" : "22:00:00",
  "maintain_end" : "02:00:00",
  "storage_space" : 88,
  "total_storage_space" : 100,
  "used_storage_space" : 4,
  "enable_publicip" : false,
  "ssl_enable" : false,
  "management_connect_address" : "http://192.168.0.74:15672",
  "storage_resource_id" : "52be287d-1d6a-4d30-937e-185b3f176fc4",
  "storage_spec_code" : "dms.physical.storage.normal",
  "enterprise_project_id" : "0",
  "tags" : [ {
    "key" : "key1",
    "value" : "value1"
  }, {
    "key" : "key2",
    "value" : "value2"
  } ],
  "is_logical_volume" : true,
  "extend_times" : 0,
  "ipv6_enable" : false,
  "ipv6_connect_addresses" : [ ],
  "broker_num" : 1,
  "access_user" : "root_01"
}

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.rabbitmq.v2.region.RabbitMQRegion;
import com.huaweicloud.sdk.rabbitmq.v2.*;
import com.huaweicloud.sdk.rabbitmq.v2.model.*;


public class ShowInstanceSolution {

    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);

        RabbitMQClient client = RabbitMQClient.newBuilder()
                .withCredential(auth)
                .withRegion(RabbitMQRegion.valueOf("<YOUR REGION>"))
                .build();
        ShowInstanceRequest request = new ShowInstanceRequest();
        request.withInstanceId("{instance_id}");
        try {
            ShowInstanceResponse response = client.showInstance(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 huaweicloudsdkrabbitmq.v2.region.rabbitmq_region import RabbitMQRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkrabbitmq.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 = RabbitMQClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(RabbitMQRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = ShowInstanceRequest()
        request.instance_id = "{instance_id}"
        response = client.show_instance(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"
    rabbitmq "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/rabbitmq/v2"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/rabbitmq/v2/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/rabbitmq/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 := rabbitmq.NewRabbitMQClient(
        rabbitmq.RabbitMQClientBuilder().
            WithRegion(region.ValueOf("<YOUR REGION>")).
            WithCredential(auth).
            Build())

    request := &model.ShowInstanceRequest{}
	request.InstanceId = "{instance_id}"
	response, err := client.ShowInstance(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

The specified instance is queried successfully.

Error Codes

See Error Codes.

Parent Topic: Managing Lifecycle