# StartExportLabelsTaskRun
<a name="API_StartExportLabelsTaskRun"></a>

Begins an asynchronous task to export all labeled data for a particular transform. This task is the only label-related API call that is not part of the typical active learning workflow. You typically use `StartExportLabelsTaskRun` when you want to work with all of your existing labels at the same time, such as when you want to remove or change labels that were previously submitted as truth. This API operation accepts the `TransformId` whose labels you want to export and an Amazon Simple Storage Service (Amazon S3) path to export the labels to. The operation returns a `TaskRunId`. You can check on the status of your task run by calling the `GetMLTaskRun` API.

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

```
{
   "OutputS3Path": "string",
   "TransformId": "string"
}
```

## Request Parameters
<a name="API_StartExportLabelsTaskRun_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.

 ** [OutputS3Path](#API_StartExportLabelsTaskRun_RequestSyntax) **   <a name="Glue-StartExportLabelsTaskRun-request-OutputS3Path"></a>
The Amazon S3 path where you export the labels.  
Type: String  
Required: Yes

 ** [TransformId](#API_StartExportLabelsTaskRun_RequestSyntax) **   <a name="Glue-StartExportLabelsTaskRun-request-TransformId"></a>
The unique identifier of the machine learning transform.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 255.  
Pattern: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\t]*`   
Required: Yes

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

```
{
   "TaskRunId": "string"
}
```

## Response Elements
<a name="API_StartExportLabelsTaskRun_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.

 ** [TaskRunId](#API_StartExportLabelsTaskRun_ResponseSyntax) **   <a name="Glue-StartExportLabelsTaskRun-response-TaskRunId"></a>
The unique identifier for the task run.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 255.  
Pattern: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\t]*` 

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

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

 ** EntityNotFoundException **   
A specified entity does not exist    
 ** FromFederationSource **   
Indicates whether or not the exception relates to a federated source.  
 ** Message **   
A message describing the problem.
HTTP Status Code: 400

 ** InternalServiceException **   
An internal service error occurred.    
 ** Message **   
A message describing the problem.
HTTP Status Code: 500

 ** InvalidInputException **   
The input provided was not valid.    
 ** FromFederationSource **   
Indicates whether or not the exception relates to a federated source.  
 ** Message **   
A message describing the problem.
HTTP Status Code: 400

 ** OperationTimeoutException **   
The operation timed out.    
 ** Message **   
A message describing the problem.
HTTP Status Code: 400

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

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS Command Line Interface V2](https://docs.aws.amazon.com/goto/cli2/glue-2017-03-31/StartExportLabelsTaskRun) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/glue-2017-03-31/StartExportLabelsTaskRun) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/glue-2017-03-31/StartExportLabelsTaskRun) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/glue-2017-03-31/StartExportLabelsTaskRun) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/glue-2017-03-31/StartExportLabelsTaskRun) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/glue-2017-03-31/StartExportLabelsTaskRun) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/glue-2017-03-31/StartExportLabelsTaskRun) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/glue-2017-03-31/StartExportLabelsTaskRun) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/glue-2017-03-31/StartExportLabelsTaskRun) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/StartExportLabelsTaskRun)