There are more AWS SDK examples available in the [AWS Doc SDK Examples](https://github.com/awsdocs/aws-doc-sdk-examples) GitHub repo.
# Use `DeleteTargetGroup` with an AWS SDK or CLI
The following code examples show how to use `DeleteTargetGroup`.
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 examples:
+ [Build and manage a resilient service](elastic-load-balancing-v2_example_cross_ResilientService_section.md)
+ [Getting started with Elastic Load Balancing](elastic-load-balancing-v2_example_elastic_load_balancing_v2_GettingStarted_058_section.md)
------
#### [ .NET ]
**SDK for .NET**
There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv3/cross-service/ResilientService/ElasticLoadBalancerActions#code-examples).
```
///
/// Delete a TargetGroup by its specified name.
///
/// Name of the group to delete.
/// Async task.
public async Task DeleteTargetGroupByName(string groupName)
{
var done = false;
while (!done)
{
try
{
var groupResponse =
await _amazonElasticLoadBalancingV2.DescribeTargetGroupsAsync(
new DescribeTargetGroupsRequest()
{
Names = new List() { groupName }
});
var targetArn = groupResponse.TargetGroups[0].TargetGroupArn;
await _amazonElasticLoadBalancingV2.DeleteTargetGroupAsync(
new DeleteTargetGroupRequest() { TargetGroupArn = targetArn });
Console.WriteLine($"Deleted load balancing target group {groupName}.");
done = true;
}
catch (TargetGroupNotFoundException)
{
Console.WriteLine(
$"Target group {groupName} not found, could not delete.");
done = true;
}
catch (ResourceInUseException)
{
Console.WriteLine("Target group not yet released, waiting...");
Thread.Sleep(10000);
}
}
}
```
+ For API details, see [DeleteTargetGroup](https://docs.aws.amazon.com/goto/DotNetSDKV3/elasticloadbalancingv2-2015-12-01/DeleteTargetGroup) in *AWS SDK for .NET API Reference*.
------
#### [ CLI ]
**AWS CLI**
**To delete a target group**
The following `delete-target-group` example deletes the specified target group.
```
aws elbv2 delete-target-group \
--target-group-arn {{arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-targets/73e2d6bc24d8a067}}
```
This command produces no output.
For more information, see [Delete a load balancer](https://docs.aws.amazon.com/elasticloadbalancing/latest/application/load-balancer-delete.html) in the *Application Load Balancer Guide*.
+ For API details, see [DeleteTargetGroup](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/elbv2/delete-target-group.html) in *AWS CLI Command Reference*.
------
#### [ Java ]
**SDK for Java 2.x**
There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/usecases/resilient_service#code-examples).
```
// Deletes the target group.
public void deleteTargetGroup(String targetGroupName) {
try {
DescribeTargetGroupsResponse res = getLoadBalancerClient()
.describeTargetGroups(describe -> describe.names(targetGroupName));
getLoadBalancerClient()
.deleteTargetGroup(builder -> builder.targetGroupArn(res.targetGroups().get(0).targetGroupArn()));
} catch (ElasticLoadBalancingV2Exception e) {
System.err.println(e.awsErrorDetails().errorMessage());
}
System.out.println(targetGroupName + " was deleted.");
}
```
+ For API details, see [DeleteTargetGroup](https://docs.aws.amazon.com/goto/SdkForJavaV2/elasticloadbalancingv2-2015-12-01/DeleteTargetGroup) in *AWS SDK for Java 2.x API Reference*.
------
#### [ JavaScript ]
**SDK for JavaScript (v3)**
There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascriptv3/example_code/cross-services/wkflw-resilient-service#code-examples).
```
const client = new ElasticLoadBalancingV2Client({});
try {
const { TargetGroups } = await client.send(
new DescribeTargetGroupsCommand({
Names: [NAMES.loadBalancerTargetGroupName],
}),
);
await retry({ intervalInMs: 1000, maxRetries: 30 }, () =>
client.send(
new DeleteTargetGroupCommand({
TargetGroupArn: TargetGroups[0].TargetGroupArn,
}),
),
);
} catch (e) {
state.deleteLoadBalancerTargetGroupError = e;
}
```
+ For API details, see [DeleteTargetGroup](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/client/elastic-load-balancing-v2/command/DeleteTargetGroupCommand) in *AWS SDK for JavaScript API Reference*.
------
#### [ PowerShell ]
**Tools for PowerShell V4**
**Example 1: This example removes the specified Target Group.**
```
Remove-ELB2TargetGroup -TargetGroupArn 'arn:aws:elasticloadbalancing:us-east-1:123456789012:targetgroup/testsssss/4e0b6076bc6483a7'
```
**Output:**
```
Confirm
Are you sure you want to perform this action?
Performing the operation "Remove-ELB2TargetGroup (DeleteTargetGroup)" on target "arn:aws:elasticloadbalancing:us-east-1:123456789012:targetgroup/testsssss/4e0b6076bc6483a7".
[Y] Yes [A] Yes to All [N] No [L] No to All [S] Suspend [?] Help (default is "Y"): y
```
+ For API details, see [DeleteTargetGroup](https://docs.aws.amazon.com/powershell/v4/reference) in *AWS Tools for PowerShell Cmdlet Reference (V4)*.
**Tools for PowerShell V5**
**Example 1: This example removes the specified Target Group.**
```
Remove-ELB2TargetGroup -TargetGroupArn 'arn:aws:elasticloadbalancing:us-east-1:123456789012:targetgroup/testsssss/4e0b6076bc6483a7'
```
**Output:**
```
Confirm
Are you sure you want to perform this action?
Performing the operation "Remove-ELB2TargetGroup (DeleteTargetGroup)" on target "arn:aws:elasticloadbalancing:us-east-1:123456789012:targetgroup/testsssss/4e0b6076bc6483a7".
[Y] Yes [A] Yes to All [N] No [L] No to All [S] Suspend [?] Help (default is "Y"): y
```
+ For API details, see [DeleteTargetGroup](https://docs.aws.amazon.com/powershell/v5/reference) in *AWS Tools for PowerShell Cmdlet Reference (V5)*.
------
#### [ Python ]
**SDK for Python (Boto3)**
There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/elastic-load-balancing#code-examples).
```
class ElasticLoadBalancerWrapper:
"""Encapsulates Elastic Load Balancing (ELB) actions."""
def __init__(self, elb_client: boto3.client):
"""
Initializes the LoadBalancer class with the necessary parameters.
"""
self.elb_client = elb_client
def delete_target_group(self, target_group_name) -> None:
"""
Deletes the target group.
"""
try:
# Describe the target group to get its ARN
response = self.elb_client.describe_target_groups(Names=[target_group_name])
tg_arn = response["TargetGroups"][0]["TargetGroupArn"]
# Delete the target group
self.elb_client.delete_target_group(TargetGroupArn=tg_arn)
log.info("Deleted load balancing target group %s.", target_group_name)
# Use a custom waiter to wait until the target group is no longer available
self.wait_for_target_group_deletion(self.elb_client, tg_arn)
log.info("Target group %s successfully deleted.", target_group_name)
except ClientError as err:
error_code = err.response["Error"]["Code"]
log.error(f"Failed to delete target group '{target_group_name}'.")
if error_code == "TargetGroupNotFound":
log.error(
"Load balancer target group either already deleted or never existed. "
"Verify the name and check that the resource exists in the AWS Console."
)
elif error_code == "ResourceInUseException":
log.error(
"Target group still in use by another resource. "
"Ensure that the target group is no longer associated with any load balancers or resources.",
)
log.error(f"Full error:\n\t{err}")
def wait_for_target_group_deletion(
self, elb_client, target_group_arn, max_attempts=10, delay=30
):
for attempt in range(max_attempts):
try:
elb_client.describe_target_groups(TargetGroupArns=[target_group_arn])
print(
f"Attempt {attempt + 1}: Target group {target_group_arn} still exists."
)
except ClientError as e:
if e.response["Error"]["Code"] == "TargetGroupNotFound":
print(
f"Target group {target_group_arn} has been successfully deleted."
)
return
else:
raise
time.sleep(delay)
raise TimeoutError(
f"Target group {target_group_arn} was not deleted after {max_attempts * delay} seconds."
)
```
+ For API details, see [DeleteTargetGroup](https://docs.aws.amazon.com/goto/boto3/elasticloadbalancingv2-2015-12-01/DeleteTargetGroup) in *AWS SDK for Python (Boto3) API Reference*.
------