# LambdaCodeHook


Specifies a Lambda function that verifies requests to a bot or fulfills the user's request to a bot.

## Contents


 ** codeHookInterfaceVersion **   <a name="lexv2-Type-LambdaCodeHook-codeHookInterfaceVersion"></a>
The version of the request-response that you want Amazon Lex to use to invoke your Lambda function.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 5.  
Required: Yes

 ** lambdaARN **   <a name="lexv2-Type-LambdaCodeHook-lambdaARN"></a>
The Amazon Resource Name (ARN) of the Lambda function.  
Type: String  
Length Constraints: Minimum length of 20. Maximum length of 2048.  
Pattern: `arn:aws:lambda:[a-z]+-[a-z]+-[0-9]:[0-9]{12}:function:[a-zA-Z0-9-_]+(/[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12})?(:[a-zA-Z0-9-_]+)?`   
Required: Yes

## See Also


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/models.lex.v2-2020-08-07/LambdaCodeHook) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/models.lex.v2-2020-08-07/LambdaCodeHook) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/models.lex.v2-2020-08-07/LambdaCodeHook)