# ContentBlockDeltaEvent
<a name="API_runtime_ContentBlockDeltaEvent"></a>

The content block delta event.

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

 ** contentBlockIndex **   <a name="bedrock-Type-runtime_ContentBlockDeltaEvent-contentBlockIndex"></a>
The block index for a content block delta event.   
Type: Integer  
Valid Range: Minimum value of 0.  
Required: Yes

 ** delta **   <a name="bedrock-Type-runtime_ContentBlockDeltaEvent-delta"></a>
The delta for a content block delta event.  
Type: [ContentBlockDelta](API_runtime_ContentBlockDelta.md) object  
 **Note: **This object is a Union. Only one member of this object can be specified or returned.  
Required: Yes

## 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/bedrock-runtime-2023-09-30/ContentBlockDeltaEvent) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/bedrock-runtime-2023-09-30/ContentBlockDeltaEvent) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/bedrock-runtime-2023-09-30/ContentBlockDeltaEvent)