Use DescribeTargetGroups with an AWS SDK or CLI - AWS SDK Code Examples

There are more AWS SDK examples available in the AWS Doc SDK Examples GitHub repo.

Use DescribeTargetGroups with an AWS SDK or CLI

The following code examples show how to use DescribeTargetGroups.

Action examples are code excerpts from larger programs and must be run in context. You can see this action in context in the following code example:

CLI
AWS CLI

Example 1: To describe a target group

The following describe-target-groups example displays details for the specified target group.

aws elbv2 describe-target-groups \
    --target-group-arns arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-targets/73e2d6bc24d8a067

Output:

{
    "TargetGroups": [
        {
            "TargetGroupArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-targets/73e2d6bc24d8a067",
            "TargetGroupName": "my-targets",
            "Protocol": "HTTP",
            "Port": 80,
            "VpcId": "vpc-3ac0fb5f",
            "HealthCheckProtocol": "HTTP",
            "HealthCheckPort": "traffic-port",
            "HealthCheckEnabled": true,
            "HealthCheckIntervalSeconds": 30,
            "HealthCheckTimeoutSeconds": 5,
            "HealthyThresholdCount": 5,
            "UnhealthyThresholdCount": 2,
            "HealthCheckPath": "/",
            "Matcher": {
                "HttpCode": "200"
            },
            "LoadBalancerArns": [
                "arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188"
            ],
            "TargetType": "instance",
            "ProtocolVersion": "HTTP1",
            "IpAddressType": "ipv4"
        }
    ]
}

Example 2: To describe all target groups for a load balancer

The following describe-target-groups example displays details for all target groups for the specified load balancer. The example uses the --query parameter to display only the target group names.

aws elbv2 describe-target-groups \
    --load-balancer-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188 \
    --query TargetGroups[*].TargetGroupName

Output:

[
    "my-instance-targets",
    "my-ip-targets",
    "my-lambda-target"
]

For more information, see Target groups in the Applicaion Load Balancers Guide.

JavaScript
SDK for JavaScript (v3)
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository. 

  const client = new ElasticLoadBalancingV2Client({});
  const { TargetGroups } = await client.send(
    new DescribeTargetGroupsCommand({
      Names: [NAMES.loadBalancerTargetGroupName],
    }),
  );
PowerShell
Tools for PowerShell

Example 1: This example describes the specified Target Group.

Get-ELB2TargetGroup -TargetGroupArn 'arn:aws:elasticloadbalancing:us-east-1:123456789012:targetgroup/test-tg/a4e04b3688be1970'

Output:

HealthCheckEnabled         : True
HealthCheckIntervalSeconds : 30
HealthCheckPath            : /
HealthCheckPort            : traffic-port
HealthCheckProtocol        : HTTP
HealthCheckTimeoutSeconds  : 5
HealthyThresholdCount      : 5
LoadBalancerArns           : {arn:aws:elasticloadbalancing:us-east-1:123456789012:loadbalancer/app/test-alb/3651b4394dd9a24f}
Matcher                    : Amazon.ElasticLoadBalancingV2.Model.Matcher
Port                       : 80
Protocol                   : HTTP
TargetGroupArn             : arn:aws:elasticloadbalancing:us-east-1:123456789012:targetgroup/test-tg/a4e04b3688be1970
TargetGroupName            : test-tg
TargetType                 : instance
UnhealthyThresholdCount    : 2
VpcId                      : vpc-2cfd7000