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

**Note**  
End of support notice: Amazon Managed Blockchain will stop accepting new customers on October 29, 2026. Existing customers can continue using Amazon Managed Blockchain until September 29, 2027. After September 29, 2027 you will no longer be able to access Amazon Managed Blockchain. For more information, see [Amazon Managed Blockchain availability change](https://docs.aws.amazon.com/managed-blockchain/latest/hyperledger-fabric-dev/managed-blockchain-end-of-support.html).

Adds or overwrites the specified tags for the specified Amazon Managed Blockchain resource. Each tag consists of a key and optional value.

When you specify a tag key that already exists, the tag value is overwritten with the new value. Use `UntagResource` to remove tag keys.

A resource can have up to 50 tags. If you try to create more than 50 tags for a resource, your request fails and returns an error.

For more information about tags, see [Tagging Resources](https://docs.aws.amazon.com/managed-blockchain/latest/ethereum-dev/tagging-resources.html) in the *Amazon Managed Blockchain Ethereum Developer Guide*, or [Tagging Resources](https://docs.aws.amazon.com/managed-blockchain/latest/hyperledger-fabric-dev/tagging-resources.html) in the *Amazon Managed Blockchain Hyperledger Fabric Developer Guide*.

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

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

{
   "Tags": { 
      "{{string}}" : "{{string}}" 
   }
}
```

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

The request uses the following URI parameters.

 ** [resourceArn](#API_TagResource_RequestSyntax) **   <a name="ManagedBlockchain-TagResource-request-uri-ResourceArn"></a>
The Amazon Resource Name (ARN) of the resource. For more information about ARNs and their format, see [Amazon Resource Names (ARNs)](https://docs.aws.amazon.com/general/latest/gr/aws-arns-and-namespaces.html) in the * AWS General Reference*.  
Length Constraints: Minimum length of 1. Maximum length of 1011.  
Pattern: `^arn:.+:.+:.+:.+:.+`   
Required: Yes

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

The request accepts the following data in JSON format.

 ** [Tags](#API_TagResource_RequestSyntax) **   <a name="ManagedBlockchain-TagResource-request-Tags"></a>
The tags to assign to the specified resource. Tag values can be empty, for example, `"MyTagKey" : ""`. You can specify multiple key-value pairs in a single request, with an overall maximum of 50 tags added to each resource.  
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.  
Value Length Constraints: Minimum length of 0. Maximum length of 256.  
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).

 ** InternalServiceErrorException **   
The request processing has failed because of an unknown error, exception or failure.  
HTTP Status Code: 500

 ** InvalidRequestException **   
The action or operation requested is invalid. Verify that the action is typed correctly.  
HTTP Status Code: 400

 ** ResourceNotFoundException **   
A requested resource doesn't exist. It may have been deleted or referenced incorrectly.    
 ** ResourceName **   
A requested resource doesn't exist. It may have been deleted or referenced inaccurately.
HTTP Status Code: 404

 ** ResourceNotReadyException **   
The requested resource exists but isn't in a status that can complete the operation.  
HTTP Status Code: 409

 ** TooManyTagsException **   
    
 ** ResourceName **   

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/managedblockchain-2018-09-24/TagResource) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/managedblockchain-2018-09-24/TagResource) 
+  [AWS SDK for C\+\+](https://docs.aws.amazon.com/goto/SdkForCpp/managedblockchain-2018-09-24/TagResource) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/managedblockchain-2018-09-24/TagResource) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/managedblockchain-2018-09-24/TagResource) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/managedblockchain-2018-09-24/TagResource) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/managedblockchain-2018-09-24/TagResource) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/managedblockchain-2018-09-24/TagResource) 
+  [AWS SDK for Python (Boto3)](https://docs.aws.amazon.com/goto/boto3/managedblockchain-2018-09-24/TagResource) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/managedblockchain-2018-09-24/TagResource)