# TagResource


The `TagResource` operation associates tags with an Amazon Managed Service for Prometheus resource. The only resources that can be tagged are rule groups namespaces, scrapers, and workspaces.

If you specify a new tag key for the resource, this tag is appended to the list of tags associated with the resource. If you specify a tag key that is already associated with the resource, the new tag value that you specify replaces the previous value for that tag. To remove a tag, use `UntagResource`.

## Request Syntax


```
POST /tags/resourceArn HTTP/1.1
Content-type: application/json

{
   "tags": { 
      "string" : "string" 
   }
}
```

## URI Request Parameters


The request uses the following URI parameters.

 ** [resourceArn](#API_TagResource_RequestSyntax) **   <a name="prometheus-TagResource-request-uri-resourceArn"></a>
The ARN of the resource to apply tags to.  
Required: Yes

## Request Body


The request accepts the following data in JSON format.

 ** [tags](#API_TagResource_RequestSyntax) **   <a name="prometheus-TagResource-request-tags"></a>
The list of tag keys and values to associate with the resource.  
Keys must not begin with `aws:`.  
Type: String to string map  
Map Entries: Minimum number of 0 items. Maximum number of 50 items.  
Key Length Constraints: Minimum length of 1. Maximum length of 128.  
Key Pattern: `([\p{L}\p{Z}\p{N}_.:/=+\-@]*)`   
Value Length Constraints: Minimum length of 0. Maximum length of 256.  
Value Pattern: `([\p{L}\p{Z}\p{N}_.:/=+\-@]*)`   
Required: Yes

## Response Syntax


```
HTTP/1.1 200
```

## Response Elements


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

## Errors


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

 ** AccessDeniedException **   
You do not have sufficient access to perform this action.    
 ** message **   
Description of the error.
HTTP Status Code: 403

 ** InternalServerException **   
An unexpected error occurred during the processing of the request.    
 ** message **   
Description of the error.  
 ** retryAfterSeconds **   
Advice to clients on when the call can be safely retried.
HTTP Status Code: 500

 ** ResourceNotFoundException **   
The request references a resources that doesn't exist.    
 ** message **   
Description of the error.  
 ** resourceId **   
Identifier of the resource affected.  
 ** resourceType **   
Type of the resource affected.
HTTP Status Code: 404

 ** ThrottlingException **   
The request was denied due to request throttling.    
 ** message **   
Description of the error.  
 ** quotaCode **   
Service quotas code for the originating quota.  
 ** retryAfterSeconds **   
Advice to clients on when the call can be safely retried.  
 ** serviceCode **   
Service quotas code for the originating service.
HTTP Status Code: 429

 ** ValidationException **   
The input fails to satisfy the constraints specified by an AWS service.    
 ** fieldList **   
The field that caused the error, if applicable.  
 ** message **   
Description of the error.  
 ** reason **   
Reason the request failed validation.
HTTP Status Code: 400

## See Also


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/amp-2020-08-01/TagResource) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/amp-2020-08-01/TagResource) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/amp-2020-08-01/TagResource) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/amp-2020-08-01/TagResource) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/amp-2020-08-01/TagResource) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/amp-2020-08-01/TagResource) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/amp-2020-08-01/TagResource) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/amp-2020-08-01/TagResource) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/amp-2020-08-01/TagResource) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/amp-2020-08-01/TagResource)