Is the Version of a Step Function available from Step Function Context

Question

The Context object available from a Step Function is described [here](https://docs.aws.amazon.com/step-functions/latest/dg/input-output-contextobject.html), but there isn't a mention of [Versions](https://docs.aws.amazon.com/step-functions/latest/dg/concepts-cd-aliasing-versioning.html).  If Versions are used is the executing Version visible in the Step Function Context object (either as a seperate field or as part of the `StateMachine.Id`)?

Accepted Answer

It seems it is not shown in the context object. I will raise it with the service team.

Answer

Hi,

The way to obtain the version of a state machine is to use API `DescribeStateMachine` in the Step AWS SDK of your favorite language : https://docs.aws.amazon.com/step-functions/latest/apireference/API_DescribeStateMachine.html

It's called revisionId in the returned Json:

```
{
   "creationDate": number,
   "definition": "string",
   "description": "string",
   "label": "string",
   "loggingConfiguration": { 
      "destinations": [ 
         { 
            "cloudWatchLogsLogGroup": { 
               "logGroupArn": "string"
            }
         }
      ],
      "includeExecutionData": boolean,
      "level": "string"
   },
   "name": "string",
   "revisionId": "string",
   "roleArn": "string",
   "stateMachineArn": "string",
   "status": "string",
   "tracingConfiguration": { 
      "enabled": boolean
   },
   "type": "string"
}
```

Best,

Didier

Is the Version of a Step Function available from Step Function Context

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