# CancelMetadataModelCreation


Cancels a single metadata model creation operation that was started with `StartMetadataModelCreation`.

## Request Syntax


```
{
   "MigrationProjectIdentifier": "string",
   "RequestIdentifier": "string"
}
```

## Request Parameters


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.

 ** [MigrationProjectIdentifier](#API_CancelMetadataModelCreation_RequestSyntax) **   <a name="DMS-CancelMetadataModelCreation-request-MigrationProjectIdentifier"></a>
The migration project name or Amazon Resource Name (ARN).  
Type: String  
Length Constraints: Maximum length of 255.  
Required: Yes

 ** [RequestIdentifier](#API_CancelMetadataModelCreation_RequestSyntax) **   <a name="DMS-CancelMetadataModelCreation-request-RequestIdentifier"></a>
The identifier for the metadata model creation operation to cancel. This operation was initiated by `StartMetadataModelCreation`.  
Type: String  
Required: Yes

## Response Syntax


```
{
   "Request": { 
      "Error": { ... },
      "ExportSqlDetails": { 
         "ObjectURL": "string",
         "S3ObjectKey": "string"
      },
      "MigrationProjectArn": "string",
      "Progress": { 
         "ProcessedObject": { 
            "EndpointType": "string",
            "Name": "string",
            "Type": "string"
         },
         "ProgressPercent": number,
         "ProgressStep": "string",
         "TotalObjects": number
      },
      "RequestIdentifier": "string",
      "Status": "string"
   }
}
```

## Response Elements


If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

 ** [Request](#API_CancelMetadataModelCreation_ResponseSyntax) **   <a name="DMS-CancelMetadataModelCreation-response-Request"></a>
Provides information about a schema conversion action.  
Type: [SchemaConversionRequest](API_SchemaConversionRequest.md) object

## Errors


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

 ** AccessDeniedFault **   
 AWS DMS was denied access to the endpoint. Check that the role is correctly configured.    
 ** message **   

HTTP Status Code: 400

 ** InvalidResourceStateFault **   
The resource is in a state that prevents it from being used for database migration.    
 ** message **   

HTTP Status Code: 400

 ** ResourceNotFoundFault **   
The resource could not be found.    
 ** message **   

HTTP Status Code: 400

## Examples


### Sample Request


This example illustrates retrieval of a metadata model creation requests for a migration project. The provided filter allow querying specific request by its identifier. The response includes a list of creation requests with their current status and details.

```
POST / HTTP/1.1
Host: dms.<region>.<domain>
Content-Type: application/x-amz-json-1.1
Content-Length: <PayloadSizeBytes>
Authorization: AWS4-HMAC-SHA256 Credential=<Credential>, SignedHeaders=<SignedHeaders>, Signature=<Signature>
X-Amz-Date: <Date>
X-Amz-Target: AmazonDMSv20160101.CancelMetadataModelCreation
{
    "MigrationProjectIdentifier": "arn:aws:dms:us-east-1:012345678901:migration-project:EXAMPLEABCDEFGHIJKLMNOPQRS",
    "RequestIdentifier": "00000000-0000-0000-0000-000000000000"
}
```

### Sample Response


This example illustrates one usage of CancelMetadataModelCreation.

```
HTTP/1.1 200 OK
x-amzn-RequestId: <RequestId>
Content-Type: application/x-amz-json-1.1
Content-Length: <PayloadSizeBytes>
Date: <Date>
{
    "Request": {
        "MigrationProjectArn": "arn:aws:dms:us-east-1:012345678901:migration-project:EXAMPLEABCDEFGHIJKLMNOPQRS",
        "RequestIdentifier": "00000000-0000-0000-0000-000000000000",
        "Status": "CANCELLING"
    }
}
```

## See Also


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/dms-2016-01-01/CancelMetadataModelCreation) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/dms-2016-01-01/CancelMetadataModelCreation) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/dms-2016-01-01/CancelMetadataModelCreation) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/dms-2016-01-01/CancelMetadataModelCreation) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/dms-2016-01-01/CancelMetadataModelCreation) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/dms-2016-01-01/CancelMetadataModelCreation) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/dms-2016-01-01/CancelMetadataModelCreation) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/dms-2016-01-01/CancelMetadataModelCreation) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/dms-2016-01-01/CancelMetadataModelCreation) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/dms-2016-01-01/CancelMetadataModelCreation)