# TagResource
<a name="API_TagResource"></a>

Adds or edits tags on an Application Auto Scaling scalable target.

Each tag consists of a tag key and a tag value, which are both case-sensitive strings. To add a tag, specify a new tag key and a tag value. To edit a tag, specify an existing tag key and a new tag value.

You can use this operation to tag an Application Auto Scaling scalable target, but you cannot tag a scaling policy or scheduled action.

You can also add tags to an Application Auto Scaling scalable target while creating it (`RegisterScalableTarget`).

For general information about tags, including the format and syntax, see [Tagging your AWS resources](https://docs.aws.amazon.com/general/latest/gr/aws_tagging.html) in the *Amazon Web Services General Reference*.

Use tags to control access to a scalable target. For more information, see [Tagging support for Application Auto Scaling](https://docs.aws.amazon.com/autoscaling/application/userguide/resource-tagging-support.html) in the *Application Auto Scaling User Guide*.

## Request Syntax
<a name="API_TagResource_RequestSyntax"></a>

```
{
   "ResourceARN": "string",
   "Tags": { 
      "string" : "string" 
   }
}
```

## Request Parameters
<a name="API_TagResource_RequestParameters"></a>

For information about the parameters that are common to all actions, see [Common Parameters](CommonParameters.md).

The request accepts the following data in JSON format.

 ** [ResourceARN](#API_TagResource_RequestSyntax) **   <a name="autoscaling-TagResource-request-ResourceARN"></a>
Identifies the Application Auto Scaling scalable target that you want to apply tags to.  
For example: `arn:aws:application-autoscaling:us-east-1:123456789012:scalable-target/1234abcd56ab78cd901ef1234567890ab123`   
To get the ARN for a scalable target, use [DescribeScalableTargets](API_DescribeScalableTargets.md).  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 1011.  
Pattern: `^arn:.+:application-autoscaling:.+:[0-9]+:scalable-target\/[a-zA-Z0-9-]+$`   
Required: Yes

 ** [Tags](#API_TagResource_RequestSyntax) **   <a name="autoscaling-TagResource-request-Tags"></a>
The tags assigned to the resource. A tag is a label that you assign to an AWS resource.  
Each tag consists of a tag key and a tag value.  
You cannot have more than one tag on an Application Auto Scaling scalable target with the same tag key. If you specify an existing tag key with a different tag value, Application Auto Scaling replaces the current tag value with the specified one.  
For information about the rules that apply to tag keys and tag values, see [User-defined tag restrictions](https://docs.aws.amazon.com/awsaccountbilling/latest/aboutv2/allocation-tag-restrictions.html) in the * AWS Billing User Guide*.  
Type: String to string map  
Key Length Constraints: Minimum length of 1. Maximum length of 128.  
Value Length Constraints: Minimum length of 0. Maximum length of 256.  
Required: Yes

## Response Elements
<a name="API_TagResource_ResponseElements"></a>

If the action is successful, the service sends back an HTTP 200 response with an empty HTTP body.

## Errors
<a name="API_TagResource_Errors"></a>

For information about the errors that are common to all actions, see [Common Error Types](CommonErrors.md).

 ** ResourceNotFoundException **   
The specified resource doesn't exist.    
 ** ResourceName **   
The name of the Application Auto Scaling resource. This value is an Amazon Resource Name (ARN).
HTTP Status Code: 400

 ** TooManyTagsException **   
The request contains too many tags. Try the request again with fewer tags.    
 ** ResourceName **   
The name of the Application Auto Scaling resource. This value is an Amazon Resource Name (ARN).
HTTP Status Code: 400

 ** ValidationException **   
An exception was thrown for a validation issue. Review the available parameters for the API request.  
HTTP Status Code: 400

## Examples
<a name="API_TagResource_Examples"></a>

If you plan to create requests manually, you must replace the Authorization header contents in the examples (`AUTHPARAMS`) with a signature. For more information, see [Signing AWS API requests](https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_aws-signing.html) in the *IAM User Guide*. If you plan to use the [AWS CLI](http://aws.amazon.com/cli/) or one of the [AWS SDKs](http://aws.amazon.com/tools/), these tools sign the requests for you.

### Example
<a name="API_TagResource_Example_1"></a>

The following example adds a tag with the key name "environment" and the value "production" to the scalable target specified by its ARN.

#### Sample Request
<a name="API_TagResource_Example_1_Request"></a>

```
POST / HTTP/1.1
Host: application-autoscaling.us-west-2.amazonaws.com
Accept-Encoding: identity
Content-Length: [content-length]
X-Amz-Target: AnyScaleFrontendService.TagResource
X-Amz-Date: 20230506T182145Z
User-Agent: aws-cli/2.0.0 Python/3.7.5 Windows/10 botocore/2.0.0dev4
Content-Type: application/x-amz-json-1.1
Authorization: AUTHPARAMS

{
    "ResourceARN": "arn:aws:application-autoscaling:us-west-2:123456789012:scalable-target/1234abcd56ab78cd901ef1234567890ab123",
    "Tags": {
        "environment": "production"
    }
}
```

## See Also
<a name="API_TagResource_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS Command Line Interface V2](https://docs.aws.amazon.com/goto/cli2/application-autoscaling-2016-02-06/TagResource) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/application-autoscaling-2016-02-06/TagResource) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/application-autoscaling-2016-02-06/TagResource) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/application-autoscaling-2016-02-06/TagResource) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/application-autoscaling-2016-02-06/TagResource) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/application-autoscaling-2016-02-06/TagResource) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/application-autoscaling-2016-02-06/TagResource) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/application-autoscaling-2016-02-06/TagResource) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/application-autoscaling-2016-02-06/TagResource) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/application-autoscaling-2016-02-06/TagResource)