# ActionParameter
<a name="API_ActionParameter"></a>

Describes a parameter for an action.

## Contents
<a name="API_ActionParameter_Contents"></a>

 ** description **   <a name="fis-Type-ActionParameter-description"></a>
The parameter description.  
Type: String  
Length Constraints: Maximum length of 512.  
Pattern: `[\s\S]+`   
Required: No

 ** required **   <a name="fis-Type-ActionParameter-required"></a>
Indicates whether the parameter is required.  
Type: Boolean  
Required: No

## See Also
<a name="API_ActionParameter_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/fis-2020-12-01/ActionParameter) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/fis-2020-12-01/ActionParameter) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/fis-2020-12-01/ActionParameter)