# GetPatchBaselineForPatchGroup
<a name="API_GetPatchBaselineForPatchGroup"></a>

Retrieves the patch baseline that should be used for the specified patch group.

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

```
{
   "OperatingSystem": "string",
   "PatchGroup": "string"
}
```

## Request Parameters
<a name="API_GetPatchBaselineForPatchGroup_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.

 ** [OperatingSystem](#API_GetPatchBaselineForPatchGroup_RequestSyntax) **   <a name="systemsmanager-GetPatchBaselineForPatchGroup-request-OperatingSystem"></a>
Returns the operating system rule specified for patch groups using the patch baseline.  
Type: String  
Valid Values: `WINDOWS | AMAZON_LINUX | AMAZON_LINUX_2 | AMAZON_LINUX_2022 | UBUNTU | REDHAT_ENTERPRISE_LINUX | SUSE | CENTOS | ORACLE_LINUX | DEBIAN | MACOS | RASPBIAN | ROCKY_LINUX | ALMA_LINUX | AMAZON_LINUX_2023`   
Required: No

 ** [PatchGroup](#API_GetPatchBaselineForPatchGroup_RequestSyntax) **   <a name="systemsmanager-GetPatchBaselineForPatchGroup-request-PatchGroup"></a>
The name of the patch group whose patch baseline should be retrieved.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 256.  
Pattern: `^([\p{L}\p{Z}\p{N}_.:/=+\-@]*)$`   
Required: Yes

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

```
{
   "BaselineId": "string",
   "OperatingSystem": "string",
   "PatchGroup": "string"
}
```

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

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

The following data is returned in JSON format by the service.

 ** [BaselineId](#API_GetPatchBaselineForPatchGroup_ResponseSyntax) **   <a name="systemsmanager-GetPatchBaselineForPatchGroup-response-BaselineId"></a>
The ID of the patch baseline that should be used for the patch group.  
Type: String  
Length Constraints: Minimum length of 20. Maximum length of 128.  
Pattern: `^[a-zA-Z0-9_\-:/]{20,128}$` 

 ** [OperatingSystem](#API_GetPatchBaselineForPatchGroup_ResponseSyntax) **   <a name="systemsmanager-GetPatchBaselineForPatchGroup-response-OperatingSystem"></a>
The operating system rule specified for patch groups using the patch baseline.  
Type: String  
Valid Values: `WINDOWS | AMAZON_LINUX | AMAZON_LINUX_2 | AMAZON_LINUX_2022 | UBUNTU | REDHAT_ENTERPRISE_LINUX | SUSE | CENTOS | ORACLE_LINUX | DEBIAN | MACOS | RASPBIAN | ROCKY_LINUX | ALMA_LINUX | AMAZON_LINUX_2023` 

 ** [PatchGroup](#API_GetPatchBaselineForPatchGroup_ResponseSyntax) **   <a name="systemsmanager-GetPatchBaselineForPatchGroup-response-PatchGroup"></a>
The name of the patch group.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 256.  
Pattern: `^([\p{L}\p{Z}\p{N}_.:/=+\-@]*)$` 

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

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

 ** InternalServerError **   
An error occurred on the server side.  
HTTP Status Code: 500

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

### Example
<a name="API_GetPatchBaselineForPatchGroup_Example_1"></a>

This example illustrates one usage of GetPatchBaselineForPatchGroup.

#### Sample Request
<a name="API_GetPatchBaselineForPatchGroup_Example_1_Request"></a>

```
POST / HTTP/1.1
Host: ssm.us-east-2.amazonaws.com
Accept-Encoding: identity
Content-Length: 66
X-Amz-Target: AmazonSSM.GetPatchBaselineForPatchGroup
X-Amz-Date: 20240309T060906Z
User-Agent: aws-cli/1.11.180 Python/2.7.9 Windows/8 botocore/1.7.38
Content-Type: application/x-amz-json-1.1
Authorization: AWS4-HMAC-SHA256 Credential=AKIAIOSFODNN7EXAMPLE/20240309/us-east-2/ssm/aws4_request, 
SignedHeaders=content-type;host;x-amz-date;x-amz-target, Signature=39c3b3042cd2aEXAMPLE

{
    "PatchGroup": "mypatchgroup",
    "OperatingSystem": "WINDOWS"
}
```

#### Sample Response
<a name="API_GetPatchBaselineForPatchGroup_Example_1_Response"></a>

```
{
    "BaselineId": "pb-0c10e65780EXAMPLE",
    "OperatingSystem": "WINDOWS",
    "PatchGroup": "mypatchgroup"
}
```

## See Also
<a name="API_GetPatchBaselineForPatchGroup_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/ssm-2014-11-06/GetPatchBaselineForPatchGroup) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/ssm-2014-11-06/GetPatchBaselineForPatchGroup) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/ssm-2014-11-06/GetPatchBaselineForPatchGroup) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/ssm-2014-11-06/GetPatchBaselineForPatchGroup) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/ssm-2014-11-06/GetPatchBaselineForPatchGroup) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/ssm-2014-11-06/GetPatchBaselineForPatchGroup) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/ssm-2014-11-06/GetPatchBaselineForPatchGroup) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/ssm-2014-11-06/GetPatchBaselineForPatchGroup) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/ssm-2014-11-06/GetPatchBaselineForPatchGroup) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/ssm-2014-11-06/GetPatchBaselineForPatchGroup)