tencent cloud

APIs

DescribeInstance

Download
Mode fokus
Ukuran font
Terakhir diperbarui: 2026-05-12 11:31:47

1. API Description

Domain name for API request: mqtt.intl.tencentcloudapi.com.

This API is used to query instance information.

A maximum of 20 requests can be initiated per second for this API.

We recommend you to use API Explorer
Try it
API Explorer provides a range of capabilities, including online call, signature authentication, SDK code generation, and API quick search. It enables you to view the request, response, and auto-generated examples.

2. Input Parameters

The following request parameter list only provides API request parameters and some common parameters. For the complete common parameter list, see Common Request Parameters.

Parameter Name Required Type Description
Action Yes String Common Params. The value used for this API: DescribeInstance.
Version Yes String Common Params. The value used for this API: 2024-05-16.
Region Yes String Common Params. For more information, please see the list of regions supported by the product.
InstanceId Yes String

Tencent Cloud MQTT instance ID can be obtained from the api or the console.

3. Output Parameters

Parameter Name Type Description
InstanceType String

Instance type
BASIC Basic version
PRO Professional Edition
PLATINUM Platinum version

InstanceId String

Instance ID

InstanceName String

Instance name

TopicNum Integer

Number of topics

TopicNumLimit Integer

Maximum number of topics per instance

TpsLimit Integer

TPS throttle value

CreatedTime Integer

createTime, in seconds

Remark String

Remarks

InstanceStatus String

Instance status, RUNNING, running MAINTAINING, maintaining ABNORMAL, abnormal OVERDUE, arrears DESTROYED, deleted CREATING, creating MODIFYING, modifying CREATE_FAILURE, creation failure MODIFY_FAILURE, configuration change failed DELETING, deleting

SkuCode String

Instance specification

MaxSubscriptionPerClient Integer

Maximum number of subscriptions for a single client

AuthorizationPolicyLimit Integer

Number of authorization rule entries

ClientNumLimit Integer

Number of clients cap

DeviceCertificateProvisionType String

Client certificate registration method:
JITP: Automatic sign-up
API: Manually register through API

AutomaticActivation Boolean

Whether to automatically activate when automatically registering a device certificate

RenewFlag Integer

Whether it is automatically renewed. Only applicable to monthly subscription clusters. 1: Automatic renewal 0: Non-automatic renewal

PayMode String

Billing mode, POSTPAID, pay-as-you-go PREPAID, annual/monthly subscription

ExpiryTime Integer

Expiry time, millisecond-level timestamp

DestroyTime Integer

Predestruction time, millisecond-level timestamp

X509Mode String

TLS, one-way authentication mTLS, mutual authentication BYOC; one certificate per device

MaxCaNum Integer

Maximum Ca quota

RegistrationCode String

FPS Cert Registration Code

MaxSubscription Integer

Maximum number of subscriptions for a cluster

AuthorizationPolicy Boolean

Authorization policy switch

SharedSubscriptionGroupLimit Integer

Maximum limit of shared subscription groups

AutoSubscriptionPolicyLimit Integer

Limit on number of auto subscription rules

MaxTopicFilterPerAutoSubscriptionPolicy Integer

Number limit of TopicFilter in a single auto subscription rule

UseDefaultServerCert Boolean

Whether to use the default server certificate

TrustedCaLimit Integer

Maximum number of server CAs

ServerCertLimit Integer

Maximum number of server certificates

TopicPrefixSlashLimit Integer

Max level of topic prefix

MessageRate Integer

Single client send message rate limiting, unit messages/second

TransportLayerSecurity String

Server-side tls supported protocols, separated by ",". Example: TLSv1.3,TLSv1.2,TLSv1.1,TLSv1

MessageEnrichmentRuleLimit Integer

Message property enhancement rule quota

BlockRuleLimit Integer

Maximum allowed number of blocking rules

RequestId String The unique request ID, generated by the server, will be returned for every request (if the request fails to reach the server for other reasons, the request will not obtain a RequestId). RequestId is required for locating a problem.

4. Example

Example1 Example

Input Example

POST / HTTP/1.1
Host: mqtt.intl.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: DescribeInstance
<Common request parameters>

{
    "InstanceId": "mqtt-3ja5wo5b"
}

Output Example

{
    "Response": {
        "AuthorizationPolicy": true,
        "AuthorizationPolicyLimit": 10,
        "AutoSubscriptionPolicyLimit": 10,
        "AutomaticActivation": false,
        "BlockRuleLimit": 5,
        "ClientNumLimit": 2000,
        "CreatedTime": 1772163943,
        "DestroyTime": 0,
        "DeviceCertificateProvisionType": "API",
        "ExpiryTime": 0,
        "InstanceId": "mqtt-3ja5wo5b",
        "InstanceName": "mqtt-shared-test3",
        "InstanceStatus": "RUNNING",
        "InstanceType": "BASIC",
        "MaxCaNum": 20,
        "MaxSubscription": 60000,
        "MaxSubscriptionPerClient": 30,
        "MaxTopicFilterPerAutoSubscriptionPolicy": 5,
        "MaxTopicFilterPerSharedSubscriptionGroup": 10,
        "MessageEnrichmentRuleLimit": 10,
        "MessageRate": -1,
        "PayMode": "POSTPAID",
        "RegistrationCode": "",
        "Remark": "",
        "RenewFlag": 1,
        "ServerCertLimit": 3,
        "SharedSubscriptionGroupLimit": 20,
        "SkuCode": "basic_2k",
        "TopicNum": 0,
        "TopicNumLimit": 20,
        "TopicPrefixSlashLimit": 2,
        "TpsLimit": 2000,
        "TransportLayerSecurity": "TLSv1.3,TLSv1.2,TLSv1.1,TLSv1",
        "TrustedCaLimit": 3,
        "UseDefaultServerCert": true,
        "X509Mode": "TLS",
        "RequestId": "2202b107-4def-4fa4-a487-0499c77620db"
    }
}

5. Developer Resources

SDK

TencentCloud API 3.0 integrates SDKs that support various programming languages to make it easier for you to call APIs.

Command Line Interface

6. Error Code

The following only lists the error codes related to the API business logic. For other error codes, see Common Error Codes.

Error Code Description
ResourceNotFound.Instance ResourceNotFound.Instance

Bantuan dan Dukungan

Apakah halaman ini membantu?

masukan