# Action


An action defines the tasks that the extension performs during the AWS AppConfig workflow. Each action includes an action point, as shown in the following list: 
+  `PRE_CREATE_HOSTED_CONFIGURATION_VERSION` 
+  `PRE_START_DEPLOYMENT` 
+  `AT_DEPLOYMENT_TICK` 
+  `ON_DEPLOYMENT_START` 
+  `ON_DEPLOYMENT_STEP` 
+  `ON_DEPLOYMENT_BAKING` 
+  `ON_DEPLOYMENT_COMPLETE` 
+  `ON_DEPLOYMENT_ROLLED_BACK` 

Each action also includes a name, a URI to an AWS Lambda function, and an Amazon Resource Name (ARN) for an AWS Identity and Access Management assume role. You specify the name, URI, and ARN for each *action point* defined in the extension.

## Contents


 ** Description **   <a name="appconfig-Type-Action-Description"></a>
Information about the action.  
Type: String  
Length Constraints: Minimum length of 0. Maximum length of 1024.  
Required: No

 ** Name **   <a name="appconfig-Type-Action-Name"></a>
The action name.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 64.  
Required: No

 ** RoleArn **   <a name="appconfig-Type-Action-RoleArn"></a>
An Amazon Resource Name (ARN) for an AWS Identity and Access Management assume role.  
Type: String  
Length Constraints: Minimum length of 20. Maximum length of 2048.  
Pattern: `arn:(aws[a-zA-Z-]*)?:[a-z]+:((eusc-)?[a-z]{2}((-gov)|(-iso([a-z]?)))?-[a-z]+-\d{1})?:(\d{12})?:[a-zA-Z0-9-_/:.]+`   
Required: No

 ** Uri **   <a name="appconfig-Type-Action-Uri"></a>
The extension URI associated to the action point in the extension definition. The URI can be an Amazon Resource Name (ARN) for one of the following: an AWS Lambda function, an Amazon Simple Queue Service queue, an Amazon Simple Notification Service topic, or the Amazon EventBridge default event bus.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 2048.  
Required: No

## See Also


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/appconfig-2019-10-09/Action) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/appconfig-2019-10-09/Action) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/appconfig-2019-10-09/Action)