This is the new *CloudFormation Template Reference Guide*. Please update your bookmarks and links. For help getting started with CloudFormation, see the [AWS CloudFormation User Guide](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/Welcome.html).

# AWS::OpenSearchServerless::Index Mappings
<a name="aws-properties-opensearchserverless-index-mappings"></a>

Index mappings for the OpenSearch Serverless index.

## Syntax
<a name="aws-properties-opensearchserverless-index-mappings-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-opensearchserverless-index-mappings-syntax.json"></a>

```
{
  "[Properties](#cfn-opensearchserverless-index-mappings-properties)" : {Key: Value, ...}
}
```

### YAML
<a name="aws-properties-opensearchserverless-index-mappings-syntax.yaml"></a>

```
  [Properties](#cfn-opensearchserverless-index-mappings-properties): 
    Key: Value
```

## Properties
<a name="aws-properties-opensearchserverless-index-mappings-properties"></a>

`Properties`  <a name="cfn-opensearchserverless-index-mappings-properties"></a>
Nested fields within an object or nested field type.  
*Required*: No  
*Type*: Object of [PropertyMapping](aws-properties-opensearchserverless-index-propertymapping.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)