1. API Description

Domain name for API request: clb.tencentcloudapi.com.

This API is used to get the list of listeners by CLB instance ID, listener protocol, or port. If no filter is specified, all listeners under the CLB instance will be returned.

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

Note: This API supports Finance regions. If the common parameter Region is a Finance region, a domain name with the Finance region needs to be specified, for example: clb.ap-shanghai-fsi.tencentcloudapi.com

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.

3. Output Parameters

4. Example

Example1 Querying the information of all listeners in a CLB instance

Input Example

https://clb.tencentcloudapi.com/?Action=DescribeListeners
&LoadBalancerId=lb-aniq7ewx
&<Common request parameters>

Output Example

{
  "Response": {
    "TotalCount": 3,
    "Listeners": [
      {
        "ListenerId": "lbl-2ytsji1u",
        "ListenerName": "555",
        "CreateTime": "2020-12-31 11:36:18",
        "Protocol": "HTTP",
        "Port": 555,
        "EndPort": 0,
        "HealthCheck": null,
        "Certificate": null,
        "Scheduler": null,
        "SessionExpireTime": null,
        "SniSwitch": 0,
        "Rules": [
          {
            "ListenerId": "lbl-2ytsji1u",
            "LocationId": "loc-nq5fuotq",
            "Domain": "www.123.com",
            "Url": "/123",
            "CreateTime": "2020-12-31 11:36:48",
            "Certificate": null,
            "HealthCheck": {
              "HealthSwitch": 1,
              "TimeOut": 5,
              "IntervalTime": 5,
              "HealthNum": 3,
              "UnHealthNum": 3,
              "HttpCode": 15,
              "HttpCheckPath": "/",
              "HttpCheckDomain": "www.123.com",
              "HttpCheckMethod": "get",
              "CheckPort": null,
              "CheckType": "TCP",
              "HttpVersion": null,
              "ContextType": null,
              "SendContext": null,
              "RecvContext": null
            },
            "RewriteTarget": {
              "TargetListenerId": null,
              "TargetLocationId": null,
              "RewriteCode": null,
              "TakeUrl": null,
              "RewriteType": null
            },
            "SessionExpireTime": 0,
            "Scheduler": "WRR",
            "HttpGzip": true,
            "BeAutoCreated": false,
            "DefaultServer": true,
            "Http2": false,
            "ForwardType": "HTTP",
            "TargetType": "NODE",
            "TargetGroup": null,
            "WafDomainId": "",
            "TrpcCallee": "",
            "TrpcFunc": "",
            "QuicStatus": "OFF"
          }
        ],
        "TargetType": null,
        "TargetGroup": null,
        "KeepaliveEnable": 0,
        "SessionType": "NORMAL",
        "Toa": false
      },
      {
        "ListenerId": "lbl-a459zzae",
        "ListenerName": "222",
        "CreateTime": "2020-12-10 20:26:54",
        "Protocol": "HTTP",
        "Port": 222,
        "EndPort": 0,
        "HealthCheck": null,
        "Certificate": null,
        "Scheduler": null,
        "SessionExpireTime": null,
        "SniSwitch": 0,
        "Rules": [
          {
            "ListenerId": "lbl-a459zzae",
            "LocationId": "loc-7pbxg3d4",
            "Domain": "www.123.com",
            "Url": "/",
            "CreateTime": "2020-12-10 20:33:14",
            "Certificate": null,
            "HealthCheck": {
              "HealthSwitch": 1,
              "TimeOut": 5,
              "IntervalTime": 5,
              "HealthNum": 3,
              "UnHealthNum": 3,
              "HttpCode": 15,
              "HttpCheckPath": "/",
              "HttpCheckDomain": "www.123.com",
              "HttpCheckMethod": "get",
              "CheckPort": null,
              "CheckType": "TCP",
              "HttpVersion": null,
              "ContextType": null,
              "SendContext": null,
              "RecvContext": null
            },
            "RewriteTarget": {
              "TargetListenerId": null,
              "TargetLocationId": null,
              "RewriteCode": null,
              "TakeUrl": null,
              "RewriteType": null
            },
            "SessionExpireTime": 0,
            "Scheduler": "WRR",
            "HttpGzip": true,
            "BeAutoCreated": false,
            "DefaultServer": true,
            "Http2": false,
            "ForwardType": "HTTP",
            "TargetType": "NODE",
            "TargetGroup": null,
            "WafDomainId": "",
            "TrpcCallee": "",
            "TrpcFunc": "",
            "QuicStatus": "OFF"
          }
        ],
        "TargetType": null,
        "TargetGroup": null,
        "KeepaliveEnable": 0,
        "SessionType": "NORMAL",
        "Toa": false
      }
    ],
    "RequestId": "2682e290-3f8c-4766-98fa-716610e2d351"
  }
}

Example2 Querying listeners by port, protocol, and listener ID

Input Example

https://clb.tencentcloudapi.com/?Action=DescribeListeners
&LoadBalancerId=lb-aniq7ewx
&Protocol=TCP
&Port=333
&ListenerIds.0=lbl-hd9nfp6o
&<Common request parameters>

Output Example

{
  "Response": {
    "TotalCount": 1,
    "Listeners": [
      {
        "ListenerId": "lbl-hd9nfp6o",
        "ListenerName": "12345",
        "CreateTime": "2020-12-31 12:03:36",
        "Protocol": "TCP",
        "Port": 333,
        "EndPort": 0,
        "HealthCheck": {
          "HealthSwitch": 1,
          "TimeOut": 2,
          "IntervalTime": 5,
          "HealthNum": 3,
          "UnHealthNum": 3,
          "CheckPort": null,
          "CheckType": "TCP",
          "HttpCheckDomain": null,
          "HttpCheckPath": null,
          "HttpCheckMethod": null,
          "HttpVersion": null,
          "HttpCode": null,
          "ContextType": null,
          "SendContext": null,
          "RecvContext": null
        },
        "Certificate": null,
        "Scheduler": "WRR",
        "SessionExpireTime": 0,
        "SniSwitch": 0,
        "Rules": null,
        "TargetType": "NODE",
        "TargetGroup": null,
        "KeepaliveEnable": null,
        "SessionType": "NORMAL",
        "Toa": false
      }
    ],
    "RequestId": "3ddae670-4a89-4919-af6e-0d6bf195c92e"
  }
}

5. Developer Resources

SDK

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

• Tencent Cloud SDK 3.0 for Python
• Tencent Cloud SDK 3.0 for Java
• Tencent Cloud SDK 3.0 for PHP
• Tencent Cloud SDK 3.0 for Go
• Tencent Cloud SDK 3.0 for NodeJS
• Tencent Cloud SDK 3.0 for .NET
• Tencent Cloud SDK 3.0 for C++

Command Line Interface

• Tencent Cloud CLI 3.0

6. Error Code

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