# ListStateMachineVersions
<a name="API_ListStateMachineVersions"></a>

Lists [versions](https://docs.amazonaws.cn/step-functions/latest/dg/concepts-state-machine-version.html) for the specified state machine Amazon Resource Name (ARN).

The results are sorted in descending order of the version creation time.

If `nextToken` is returned, there are more results available. The value of `nextToken` is a unique pagination token for each page. Make the call again using the returned token to retrieve the next page. Keep all other arguments unchanged. Each pagination token expires after 24 hours. Using an expired pagination token will return an *HTTP 400 InvalidToken* error.

 **Related operations:** 
+  [PublishStateMachineVersion](API_PublishStateMachineVersion.md) 
+  [DeleteStateMachineVersion](API_DeleteStateMachineVersion.md) 

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

```
{
   "maxResults": number,
   "nextToken": "string",
   "stateMachineArn": "string"
}
```

## Request Parameters
<a name="API_ListStateMachineVersions_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.

 ** [maxResults](#API_ListStateMachineVersions_RequestSyntax) **   <a name="StepFunctions-ListStateMachineVersions-request-maxResults"></a>
The maximum number of results that are returned per call. You can use `nextToken` to obtain further pages of results. The default is 100 and the maximum allowed page size is 1000. A value of 0 uses the default.  
This is only an upper limit. The actual number of results returned per call might be fewer than the specified maximum.  
Type: Integer  
Valid Range: Minimum value of 0. Maximum value of 1000.  
Required: No

 ** [nextToken](#API_ListStateMachineVersions_RequestSyntax) **   <a name="StepFunctions-ListStateMachineVersions-request-nextToken"></a>
If `nextToken` is returned, there are more results available. The value of `nextToken` is a unique pagination token for each page. Make the call again using the returned token to retrieve the next page. Keep all other arguments unchanged. Each pagination token expires after 24 hours. Using an expired pagination token will return an *HTTP 400 InvalidToken* error.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 1024.  
Required: No

 ** [stateMachineArn](#API_ListStateMachineVersions_RequestSyntax) **   <a name="StepFunctions-ListStateMachineVersions-request-stateMachineArn"></a>
The Amazon Resource Name (ARN) of the state machine.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 256.  
Required: Yes

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

```
{
   "nextToken": "string",
   "stateMachineVersions": [ 
      { 
         "creationDate": number,
         "stateMachineVersionArn": "string"
      }
   ]
}
```

## Response Elements
<a name="API_ListStateMachineVersions_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.

 ** [nextToken](#API_ListStateMachineVersions_ResponseSyntax) **   <a name="StepFunctions-ListStateMachineVersions-response-nextToken"></a>
If `nextToken` is returned, there are more results available. The value of `nextToken` is a unique pagination token for each page. Make the call again using the returned token to retrieve the next page. Keep all other arguments unchanged. Each pagination token expires after 24 hours. Using an expired pagination token will return an *HTTP 400 InvalidToken* error.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 1024.

 ** [stateMachineVersions](#API_ListStateMachineVersions_ResponseSyntax) **   <a name="StepFunctions-ListStateMachineVersions-response-stateMachineVersions"></a>
Versions for the state machine.  
Type: Array of [StateMachineVersionListItem](API_StateMachineVersionListItem.md) objects

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

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

 ** InvalidArn **   
The provided Amazon Resource Name (ARN) is not valid.  
HTTP Status Code: 400

 ** InvalidToken **   
The provided token is not valid.  
HTTP Status Code: 400

 ** ValidationException **   
The input does not satisfy the constraints specified by an Amazon service.    
 ** reason **   
The input does not satisfy the constraints specified by an Amazon service.
HTTP Status Code: 400

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

For more information about using this API in one of the language-specific Amazon SDKs, see the following:
+  [Amazon Command Line Interface V2](https://docs.amazonaws.cn/goto/cli2/states-2016-11-23/ListStateMachineVersions) 
+  [Amazon SDK for .NET V4](https://docs.amazonaws.cn/goto/DotNetSDKV4/states-2016-11-23/ListStateMachineVersions) 
+  [Amazon SDK for C\$1\$1](https://docs.amazonaws.cn/goto/SdkForCpp/states-2016-11-23/ListStateMachineVersions) 
+  [Amazon SDK for Go v2](https://docs.amazonaws.cn/goto/SdkForGoV2/states-2016-11-23/ListStateMachineVersions) 
+  [Amazon SDK for Java V2](https://docs.amazonaws.cn/goto/SdkForJavaV2/states-2016-11-23/ListStateMachineVersions) 
+  [Amazon SDK for JavaScript V3](https://docs.amazonaws.cn/goto/SdkForJavaScriptV3/states-2016-11-23/ListStateMachineVersions) 
+  [Amazon SDK for Kotlin](https://docs.amazonaws.cn/goto/SdkForKotlin/states-2016-11-23/ListStateMachineVersions) 
+  [Amazon SDK for PHP V3](https://docs.amazonaws.cn/goto/SdkForPHPV3/states-2016-11-23/ListStateMachineVersions) 
+  [Amazon SDK for Python](https://docs.amazonaws.cn/goto/boto3/states-2016-11-23/ListStateMachineVersions) 
+  [Amazon SDK for Ruby V3](https://docs.amazonaws.cn/goto/SdkForRubyV3/states-2016-11-23/ListStateMachineVersions)