tencent cloud

Feedback

DescribeTargets

Last updated: 2023-10-24 11:16:18

    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.

    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: DescribeTargets.
    Version Yes String Common Params. The value used for this API: 2018-03-17.
    Region No String Common Params. This parameter is not required for this API.
    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
    Filters.N No Array of Filter Query the list of backend services associated with a load balancer
  • location-id - String - Optional - Rule ID, such as "loc-12345678".
  • private-ip-address - String - Optional - Backend service private IP, such as 172.16.1.1
  • 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 backend services bound to a CLB instance

    This example shows you how to query 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"
                                }
                            ],
                            "FunctionTargets": []
                        }
                    ],
                    "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"
        }
    }
    

    Example2 Querying backend services by the rule ID

    This example shows you to query backend services associated with a rule by specifying the rule ID (location-id).

    Input Example

    https://clb.tencentcloudapi.com/?Action=DescribeTargets
    &LoadBalancerId=lb-12345678
    &Filters.0.Name=location-id
    &Filters.0.Values.0=loc-12345678
    &<Common request parameters>
    

    Output Example

    {
        "Response": {
            "Listeners": [
                {
                    "ListenerId": "lbl-12345678",
                    "Protocol": "HTTP",
                    "Port": 80,
                    "Rules": [
                        {
                            "LocationId": "loc-12345678",
                            "Domain": "123.com",
                            "Url": "/",
                            "Targets": [
                                {
                                    "Type": "CVM",
                                    "InstanceId": "ins-12345678",
                                    "Port": 80,
                                    "Weight": 10,
                                    "PublicIpAddresses": null,
                                    "PrivateIpAddresses": [
                                        "172.16.0.100"
                                    ],
                                    "InstanceName": "123",
                                    "RegisteredTime": "2023-01-01",
                                    "EniId": "eni-12345678"
                                }
                            ],
                            "FunctionTargets": null
                        }
                    ],
                    "Targets": null,
                    "EndPort": 0
                }
            ],
            "RequestId": "038afb75-7303-48da-abdc-e25f0cbfda0f"
        }
    }
    

    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
    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.
    UnsupportedOperation Unsupported operation.
    Contact Us

    Contact our sales team or business advisors to help your business.

    Technical Support

    Open a ticket if you're looking for further assistance. Our Ticket is 7x24 avaliable.

    7x24 Phone Support