# AppInstance
<a name="API_AppInstance"></a>

The details of an `AppInstance`, an instance of an Amazon Chime SDK messaging application.

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

 ** AppInstanceArn **   <a name="chimesdk-Type-AppInstance-AppInstanceArn"></a>
The ARN of the messaging instance.  
Type: String  
Length Constraints: Minimum length of 5. Maximum length of 1600.  
Pattern: `arn:[a-z0-9-\.]{1,63}:[a-z0-9-\.]{0,63}:[a-z0-9-\.]{0,63}:[a-z0-9-\.]{0,63}:[^/].{0,1023}`   
Required: No

 ** CreatedTimestamp **   <a name="chimesdk-Type-AppInstance-CreatedTimestamp"></a>
The time at which an `AppInstance` was created. In epoch milliseconds.  
Type: Timestamp  
Required: No

 ** LastUpdatedTimestamp **   <a name="chimesdk-Type-AppInstance-LastUpdatedTimestamp"></a>
The time an `AppInstance` was last updated. In epoch milliseconds.  
Type: Timestamp  
Required: No

 ** Metadata **   <a name="chimesdk-Type-AppInstance-Metadata"></a>
The metadata of an `AppInstance`.  
Type: String  
Length Constraints: Minimum length of 0. Maximum length of 1024.  
Pattern: `.*`   
Required: No

 ** Name **   <a name="chimesdk-Type-AppInstance-Name"></a>
The name of an `AppInstance`.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 256.  
Pattern: `[\u0009\u000A\u000D\u0020-\u007E\u0085\u00A0-\uD7FF\uE000-\uFFFD\u10000-\u10FFFF]*`   
Required: No

## See Also
<a name="API_AppInstance_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/chime-sdk-identity-2021-04-20/AppInstance) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/chime-sdk-identity-2021-04-20/AppInstance) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/chime-sdk-identity-2021-04-20/AppInstance)