DescribeTargets

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Last updated: 2021-09-07 15:42:22

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1. API Description

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

This API (DescribeTargets) is used to query the list of real servers bound to some listeners of a CLB instance.

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

We recommend you to use API Explorer

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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 parameter. The value used for this API: DescribeTargets.
Version	Yes	String	Common parameter. The value used for this API: 2018-03-17.
Region	Yes	String	Common parameter. For more information, please see the list of regions supported by the product.
LoadBalancerId	Yes	String	CLB instance ID.
ListenerIds.N	No	Array of String	List of listener IDs (20 IDs at most).
Protocol	No	String	Listener protocol type
Port	No	Integer	Listener port

3. Output Parameters

Parameter Name	Type	Description
Listeners	Array of ListenerBackend	Information of real servers bound to the listener Note: This field may return `null`, indicating that no valid values can be obtained.
RequestId	String	The unique request ID, which is returned for each request. RequestId is required for locating a problem.

4. Example

Example1 Querying all real servers bound to a CLB instance

Input Example

https://clb.tencentcloudapi.com/?Action=DescribeTargets
&LoadBalancerId=lb-10iq9lou
&<Common request parameters>

Output Example

{
  "Response": {
    "Listeners": [
      {
        "ListenerId": "lbl-4fo6k8na",
        "Protocol": "HTTP",
        "Port": 80,
        "Rules": [
          {
            "LocationId": "loc-o9732aw0",
            "Domain": "www.123.com",
            "Url": "/",
            "Targets": [
              {
                "Type": "cvm",
                "PrivateIpAddresses": [
                  "172.16.0.12"
                ],
                "EniId": "",
                "PublicIpAddresses": null,
                "InstanceName": "abcd1234",
                "Port": 555,
                "Weight": 10,
                "InstanceId": "ins-19425y2y",
                "RegisteredTime": "2019-07-12 16:22:02"
              }
            ]
          }
        ],
        "Targets": null
      },
      {
        "ListenerId": "lbl-4ue2rpl2",
        "Protocol": "TCP",
        "Port": 888,
        "Rules": null,
        "Targets": [
          {
            "Type": "cvm",
            "PrivateIpAddresses": [
              "172.16.0.12"
            ],
            "EniId": "",
            "PublicIpAddresses": null,
            "InstanceName": "abcd1234",
            "Port": 666,
            "Weight": 40,
            "InstanceId": "ins-19425y2y",
            "RegisteredTime": "2019-07-12 16:22:54"
          }
        ]
      }
    ],
    "RequestId": "a5cbe92d-c7f2-41d4-8343-3cb42c3fd1dd"
  }
}

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

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.

Error Code	Description
FailedOperation	Operation failed.
InternalError	Internal error.
InvalidParameter	Parameter error.
InvalidParameter.FormatError	Wrong parameter format.
InvalidParameterValue	Incorrect parameter value.
InvalidParameterValue.InvalidFilter	Incorrect `Filter` parameter.
InvalidParameterValue.Length	Wrong parameter length.
UnauthorizedOperation	Unauthorized operation.

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