# TagLogGroup
<a name="API_TagLogGroup"></a>

**Important**  
The TagLogGroup operation is on the path to deprecation. We recommend that you use [TagResource](https://docs.aws.amazon.com/AmazonCloudWatchLogs/latest/APIReference/API_TagResource.html) instead.

Adds or updates the specified tags for the specified log group.

To list the tags for a log group, use [ListTagsForResource](https://docs.aws.amazon.com/AmazonCloudWatchLogs/latest/APIReference/API_ListTagsForResource.html). To remove tags, use [UntagResource](https://docs.aws.amazon.com/AmazonCloudWatchLogs/latest/APIReference/API_UntagResource.html).

For more information about tags, see [Tag Log Groups in Amazon CloudWatch Logs](https://docs.aws.amazon.com/AmazonCloudWatch/latest/logs/Working-with-log-groups-and-streams.html#log-group-tagging) in the *Amazon CloudWatch Logs User Guide*.

CloudWatch Logs doesn't support IAM policies that prevent users from assigning specified tags to log groups using the `aws:Resource/key-name ` or `aws:TagKeys` condition keys. For more information about using tags to control access, see [Controlling access to Amazon Web Services resources using tags](https://docs.aws.amazon.com/IAM/latest/UserGuide/access_tags.html).

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

```
{
   "logGroupName": "string",
   "tags": { 
      "string" : "string" 
   }
}
```

## Request Parameters
<a name="API_TagLogGroup_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.

 ** [logGroupName](#API_TagLogGroup_RequestSyntax) **   <a name="CWL-TagLogGroup-request-logGroupName"></a>
The name of the log group.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 512.  
Pattern: `[\.\-_/#A-Za-z0-9]+`   
Required: Yes

 ** [tags](#API_TagLogGroup_RequestSyntax) **   <a name="CWL-TagLogGroup-request-tags"></a>
The key-value pairs to use for the tags.  
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}_.:/=+\-@]+)$`   
Value Length Constraints: Maximum length of 256.  
Value Pattern: `^([\p{L}\p{Z}\p{N}_.:/=+\-@]*)$`   
Required: Yes

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

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

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

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

 ** InvalidParameterException **   
A parameter is specified incorrectly.  
HTTP Status Code: 400

 ** ResourceNotFoundException **   
The specified resource does not exist.  
HTTP Status Code: 400

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

### To add tags for a log group
<a name="API_TagLogGroup_Example_1"></a>

The following example adds the specified tags for the specified log group.

#### Sample Request
<a name="API_TagLogGroup_Example_1_Request"></a>

```
POST / HTTP/1.1
Host: logs.<region>.<domain>
X-Amz-Date: <DATE>
Authorization: AWS4-HMAC-SHA256 Credential=<Credential>, SignedHeaders=content-type;date;host;user-agent;x-amz-date;x-amz-target;x-amzn-requestid, Signature=<Signature>
User-Agent: <UserAgentString>
Accept: application/json
Content-Type: application/x-amz-json-1.1
Content-Length: <PayloadSizeBytes>
Connection: Keep-Alive
X-Amz-Target: Logs_20140328.TagLogGroup
{
  "logGroupName": "my-log-group",
  "tags": {
      "Project": "A",
      "Environment": "test"
  }
}
```

#### Sample Response
<a name="API_TagLogGroup_Example_1_Response"></a>

```
HTTP/1.1 200 OK
x-amzn-RequestId: <RequestId>
Content-Type: application/x-amz-json-1.1
Content-Length: <PayloadSizeBytes>
Date: <Date>
```

## See Also
<a name="API_TagLogGroup_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/logs-2014-03-28/TagLogGroup) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/logs-2014-03-28/TagLogGroup) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/logs-2014-03-28/TagLogGroup) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/logs-2014-03-28/TagLogGroup) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/logs-2014-03-28/TagLogGroup) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/logs-2014-03-28/TagLogGroup) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/logs-2014-03-28/TagLogGroup) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/logs-2014-03-28/TagLogGroup) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/logs-2014-03-28/TagLogGroup) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/logs-2014-03-28/TagLogGroup)