# StreamSpecification
<a name="API_StreamSpecification"></a>

Represents the DynamoDB Streams configuration for a table in DynamoDB.

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

**Note**  
In the following list, the required parameters are described first.

 ** StreamEnabled **   <a name="DDB-Type-StreamSpecification-StreamEnabled"></a>
Indicates whether DynamoDB Streams is enabled (true) or disabled (false) on the table.  
Type: Boolean  
Required: Yes

 ** StreamViewType **   <a name="DDB-Type-StreamSpecification-StreamViewType"></a>
 When an item in the table is modified, `StreamViewType` determines what information is written to the stream for this table. Valid values for `StreamViewType` are:  
+  `KEYS_ONLY` - Only the key attributes of the modified item are written to the stream.
+  `NEW_IMAGE` - The entire item, as it appears after it was modified, is written to the stream.
+  `OLD_IMAGE` - The entire item, as it appeared before it was modified, is written to the stream.
+  `NEW_AND_OLD_IMAGES` - Both the new and the old item images of the item are written to the stream.
Type: String  
Valid Values: `NEW_IMAGE | OLD_IMAGE | NEW_AND_OLD_IMAGES | KEYS_ONLY`   
Required: No

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/dynamodb-2012-08-10/StreamSpecification) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/dynamodb-2012-08-10/StreamSpecification) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/dynamodb-2012-08-10/StreamSpecification)