# FunctionCode


The code for the Lambda function. You can either specify an object in Amazon S3, upload a .zip file archive deployment package directly, or specify the URI of a container image.

## Contents


 ** ImageUri **   <a name="lambda-Type-FunctionCode-ImageUri"></a>
URI of a [container image](https://docs.aws.amazon.com/lambda/latest/dg/lambda-images.html) in the Amazon ECR registry.  
Type: String  
Required: No

 ** S3Bucket **   <a name="lambda-Type-FunctionCode-S3Bucket"></a>
An Amazon S3 bucket in the same AWS Region as your function. The bucket can be in a different AWS account.  
Type: String  
Length Constraints: Minimum length of 3. Maximum length of 63.  
Pattern: `[0-9A-Za-z\.\-_]*(?<!\.)`   
Required: No

 ** S3Key **   <a name="lambda-Type-FunctionCode-S3Key"></a>
The Amazon S3 key of the deployment package.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 1024.  
Required: No

 ** S3ObjectVersion **   <a name="lambda-Type-FunctionCode-S3ObjectVersion"></a>
For versioned objects, the version of the deployment package object to use.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 1024.  
Required: No

 ** SourceKMSKeyArn **   <a name="lambda-Type-FunctionCode-SourceKMSKeyArn"></a>
The ARN of the AWS Key Management Service (AWS KMS) customer managed key that's used to encrypt your function's .zip deployment package. If you don't provide a customer managed key, Lambda uses an [AWS owned key](https://docs.aws.amazon.com/kms/latest/developerguide/concepts.html#aws-owned-cmk).  
Type: String  
Pattern: `(arn:(aws[a-zA-Z-]*)?:[a-z0-9-.]+:.*)|()`   
Required: No

 ** ZipFile **   <a name="lambda-Type-FunctionCode-ZipFile"></a>
The base64-encoded contents of the deployment package. AWS SDK and AWS CLI clients handle the encoding for you.  
Type: Base64-encoded binary data object  
Required: No

## 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/lambda-2015-03-31/FunctionCode) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/lambda-2015-03-31/FunctionCode) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/lambda-2015-03-31/FunctionCode)