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

Applies tags to an existing AWS X-Ray group or sampling rule.

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

```
POST /TagResource HTTP/1.1
Content-type: application/json

{
   "ResourceARN": "string",
   "Tags": [ 
      { 
         "Key": "string",
         "Value": "string"
      }
   ]
}
```

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

The request does not use any URI parameters.

## Request Body
<a name="API_TagResource_RequestBody"></a>

The request accepts the following data in JSON format.

 ** [ResourceARN](#API_TagResource_RequestSyntax) **   <a name="xray-TagResource-request-ResourceARN"></a>
The Amazon Resource Number (ARN) of an X-Ray group or sampling rule.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 1011.  
Required: Yes

 ** [Tags](#API_TagResource_RequestSyntax) **   <a name="xray-TagResource-request-Tags"></a>
A map that contains one or more tag keys and tag values to attach to an X-Ray group or sampling rule. For more information about ways to use tags, see [Tagging AWS resources](https://docs.aws.amazon.com/general/latest/gr/aws_tagging.html) in the * AWS General Reference*.  
The following restrictions apply to tags:  
+ Maximum number of user-applied tags per resource: 50
+ Maximum tag key length: 128 Unicode characters
+ Maximum tag value length: 256 Unicode characters
+ Valid values for key and value: a-z, A-Z, 0-9, space, and the following characters: \$1 . : / = \$1 - and @
+ Tag keys and values are case sensitive.
+ Don't use `aws:` as a prefix for keys; it's reserved for AWS use. You cannot edit or delete system tags.
Type: Array of [Tag](API_Tag.md) objects  
Array Members: Minimum number of 0 items. Maximum number of 200 items.  
Required: Yes

## Response Syntax
<a name="API_TagResource_ResponseSyntax"></a>

```
HTTP/1.1 200
```

## 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).

 ** InvalidRequestException **   
The request is missing required parameters or has invalid parameters.  
HTTP Status Code: 400

 ** ResourceNotFoundException **   
The resource was not found. Verify that the name or Amazon Resource Name (ARN) of the resource is correct.  
HTTP Status Code: 404

 ** ThrottledException **   
The request exceeds the maximum number of requests per second.  
HTTP Status Code: 429

 ** TooManyTagsException **   
You have exceeded the maximum number of tags you can apply to this resource.  
HTTP Status Code: 400

## 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/xray-2016-04-12/TagResource) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/xray-2016-04-12/TagResource) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/xray-2016-04-12/TagResource) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/xray-2016-04-12/TagResource) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/xray-2016-04-12/TagResource) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/xray-2016-04-12/TagResource) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/xray-2016-04-12/TagResource) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/xray-2016-04-12/TagResource) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/xray-2016-04-12/TagResource) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/xray-2016-04-12/TagResource)