tagResource method

Future<void> tagResource({
  1. required String resourceArn,
  2. required List<Tag> tags,
})

Associates the specified tags to a resource with the specified resourceArn. If existing tags on a resource aren't specified in the request parameters, they aren't changed. When a resource is deleted, the tags that are associated with that resource are deleted as well.

May throw AccessDeniedException. May throw ClientException. May throw ClusterNotFoundException. May throw InvalidParameterException. May throw LimitExceededException. May throw ResourceNotFoundException. May throw ServerException.

Parameter resourceArn : The Amazon Resource Name (ARN) of the resource to add tags to. Currently, the supported resources are Amazon ECS capacity providers, tasks, services, task definitions, clusters, and container instances.

In order to tag a service that has the following ARN format, you need to migrate the service to the long ARN. For more information, see Migrate an Amazon ECS short service ARN to a long ARN in the Amazon Elastic Container Service Developer Guide.

arn:aws:ecs:region:aws_account_id:service/service-name

After the migration is complete, the service has the long ARN format, as shown below. Use this ARN to tag the service.

arn:aws:ecs:region:aws_account_id:service/cluster-name/service-name

If you try to tag a service with a short ARN, you receive an InvalidParameterException error.

Parameter tags : The tags to add to the resource. A tag is an array of key-value pairs.

The following basic restrictions apply to tags:

  • Maximum number of tags per resource - 50
  • For each resource, each tag key must be unique, and each tag key can have only one value.
  • Maximum key length - 128 Unicode characters in UTF-8
  • Maximum value length - 256 Unicode characters in UTF-8
  • If your tagging schema is used across multiple services and resources, remember that other services may have restrictions on allowed characters. Generally allowed characters are: letters, numbers, and spaces representable in UTF-8, and the following characters: + - = . _ : / @.
  • Tag keys and values are case-sensitive.
  • Do not use aws:, AWS:, or any upper or lowercase combination of such as a prefix for either keys or values as it is reserved for Amazon Web Services use. You cannot edit or delete tag keys or values with this prefix. Tags with this prefix do not count against your tags per resource limit.

Implementation

Future<void> tagResource({
  required String resourceArn,
  required List<Tag> tags,
}) async {
  final headers = <String, String>{
    'Content-Type': 'application/x-amz-json-1.1',
    'X-Amz-Target': 'AmazonEC2ContainerServiceV20141113.TagResource'
  };
  await _protocol.send(
    method: 'POST',
    requestUri: '/',
    exceptionFnMap: _exceptionFns,
    // TODO queryParams
    headers: headers,
    payload: {
      'resourceArn': resourceArn,
      'tags': tags,
    },
  );
}