To register targets with the target group, use RegisterTargets. To update the health check settings for the target group, use ModifyTargetGroup. To monitor the health of targets in the target group, use DescribeTargetHealth.
To route traffic to the targets in a target group, specify the target group in an action using CreateListener or CreateRule.
To delete a target group, use DeleteTargetGroup.
For more information, see Target Groups for Your Application Load Balancers in the Application Load Balancers Guide.