Last updated: 2020-12-17 16:37:00

1. API Description

Domain name for API request:

This API is used to get the information of servers bound to a target group.

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:

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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: DescribeTargetGroupInstances.
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.
Filters.N Yes Array of Filter Filter. Currently, only filtering by TargetGroupId, BindIP, or InstanceId is supported.
Limit No Integer Number of displayed results. Default value: 20
Offset No Integer Display offset. Default value: 0

3. Output Parameters

Parameter Name Type Description
TotalCount Integer Number of results in current query
TargetGroupInstanceSet Array of TargetGroupBackend Information of the bound server
RealCount Integer Actual statistics, which are not affected by Limit, Offset, and CAM.
RequestId String The unique request ID, which is returned for each request. RequestId is required for locating a problem.

4. Example

Example1 Displaying information of servers bound to a target group

Input Example
&<Common request parameters>

Output Example

  "Response": {
    "TotalCount": 2,
    "TargetGroupInstanceSet": [
        "TargetGroupId": "lbtg-5xunivs0",
        "Type": "CVM",
        "InstanceId": "ins-197234qt",
        "InstanceName": "Not named",
        "Port": 3333,
        "Weight": 43,
        "PublicIpAddresses": [],
        "PrivateIpAddresses": [
        "EniId": null,
        "RegisteredTime": "2019-07-24 20:02:43"
        "TargetGroupId": "lbtg-5xunivs0",
        "Type": "CVM",
        "InstanceId": "ins-197234qt",
        "InstanceName": "Not named",
        "Port": 2222,
        "Weight": 55,
        "PublicIpAddresses": [],
        "PrivateIpAddresses": [
        "EniId": null,
        "RegisteredTime": "2019-07-23 21:01:08"
    "RealCount": 2,
    "RequestId": "94240d7f-8bc1-422a-81b9-5ea76d486a66"

5. Developer Resources


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.
InvalidParameterValue Incorrect parameter value.
UnauthorizedOperation Unauthorized operation.

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