# TagStream
<a name="API_TagStream"></a>

Adds one or more tags to a stream. A *tag* is a key-value pair (the value is optional) that you can define and assign to AWS resources. If you specify a tag that already exists, the tag value is replaced with the value that you specify in the request. For more information, see [Using Cost Allocation Tags](https://docs.aws.amazon.com/awsaccountbilling/latest/aboutv2/cost-alloc-tags.html) in the * AWS Billing and Cost Management and Cost Management User Guide*. 

You must provide either the `StreamName` or the `StreamARN`.

This operation requires permission for the `KinesisVideo:TagStream` action.

A Kinesis video stream can support up to 50 tags.

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

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

{
   "StreamARN": "string",
   "StreamName": "string",
   "Tags": { 
      "string" : "string" 
   }
}
```

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

The request does not use any URI parameters.

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

The request accepts the following data in JSON format.

 ** [StreamARN](#API_TagStream_RequestSyntax) **   <a name="KinesisVideo-TagStream-request-StreamARN"></a>
The Amazon Resource Name (ARN) of the resource that you want to add the tag or tags to.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 1024.  
Pattern: `arn:[a-z\d-]+:kinesisvideo:[a-z0-9-]+:[0-9]+:[a-z]+/[a-zA-Z0-9_.-]+/[0-9]+`   
Required: No

 ** [StreamName](#API_TagStream_RequestSyntax) **   <a name="KinesisVideo-TagStream-request-StreamName"></a>
The name of the stream that you want to add the tag or tags to.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 256.  
Pattern: `[a-zA-Z0-9_.-]+`   
Required: No

 ** [Tags](#API_TagStream_RequestSyntax) **   <a name="KinesisVideo-TagStream-request-Tags"></a>
A list of tags to associate with the specified stream. Each tag is a key-value pair (the value is optional).  
Type: String to string map  
Map Entries: 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
<a name="API_TagStream_ResponseSyntax"></a>

```
HTTP/1.1 200
```

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

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

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

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

 ** ClientLimitExceededException **   
Kinesis Video Streams has throttled the request because you have exceeded the limit of allowed client calls. Try making the call later.  
HTTP Status Code: 400

 ** InvalidArgumentException **   
The value for this input parameter is invalid.  
HTTP Status Code: 400

 ** InvalidResourceFormatException **   
The format of the `StreamARN` is invalid.  
HTTP Status Code: 400

 ** NotAuthorizedException **   
The caller is not authorized to perform this operation.  
HTTP Status Code: 401

 ** ResourceNotFoundException **   
Amazon Kinesis Video Streams can't find the stream that you specified.  
HTTP Status Code: 404

 ** TagsPerResourceExceededLimitException **   
You have exceeded the limit of tags that you can associate with the resource. A Kinesis video stream can support up to 50 tags.   
HTTP Status Code: 400

## See Also
<a name="API_TagStream_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/kinesisvideo-2017-09-30/TagStream) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/kinesisvideo-2017-09-30/TagStream) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/kinesisvideo-2017-09-30/TagStream) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/kinesisvideo-2017-09-30/TagStream) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/kinesisvideo-2017-09-30/TagStream) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/kinesisvideo-2017-09-30/TagStream) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/kinesisvideo-2017-09-30/TagStream) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/kinesisvideo-2017-09-30/TagStream) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/kinesisvideo-2017-09-30/TagStream) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/kinesisvideo-2017-09-30/TagStream)