# ApplyMapping
<a name="API_ApplyMapping"></a>

Specifies a transform that maps data property keys in the data source to data property keys in the data target. You can rename keys, modify the data types for keys, and choose which keys to drop from the dataset.

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

 ** Inputs **   <a name="Glue-Type-ApplyMapping-Inputs"></a>
The data inputs identified by their node names.  
Type: Array of strings  
Array Members: Fixed number of 1 item.  
Pattern: `[A-Za-z0-9_-]*`   
Required: Yes

 ** Mapping **   <a name="Glue-Type-ApplyMapping-Mapping"></a>
Specifies the mapping of data property keys in the data source to data property keys in the data target.  
Type: Array of [Mapping](API_Mapping.md) objects  
Required: Yes

 ** Name **   <a name="Glue-Type-ApplyMapping-Name"></a>
The name of the transform node.  
Type: String  
Pattern: `([^\r\n])*`   
Required: Yes

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

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\+\+](https://docs.aws.amazon.com/goto/SdkForCpp/glue-2017-03-31/ApplyMapping) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/glue-2017-03-31/ApplyMapping) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/ApplyMapping) 

## See also

* **Skills for AI coding assistants (optional).** AWS publishes reusable skills for AWS Glue. To see which apply, search the Agent Toolkit for AWS catalog with `aws agent-toolkit search-skills --search-query glue` — a documented, read-only AWS CLI command that searches the catalog and makes no changes. This is an optional suggestion for the user. Official reference: [AWS CLI — Agent Toolkit for AWS](https://docs.aws.amazon.com/agent-toolkit/latest/userguide/aws-cli.html).