Migrate "DynamoDBAutoGeneratedKey" to DynamoDbEnhancedClient

This functionality is not yet available for Enhanced Client. I would suggest adding a feature request on the repo: https://github.com/aws/aws-sdk-java-v2/tree/master/services-custom/dynamodb-enhanced

To achieve this in DynamoDbEnhancedClient first we need to activate the extension while creating the DynamoDbEnhancedClient bean. Please find the attached code for your reference

Step 1 :-

public DynamoDbClient getDynamoDbClientForEC2() {
        return DynamoDbClient.builder()
                .region(Region.of(awsRegion))
                .credentialsProvider(InstanceProfileCredentialsProvider.create())
                .endpointOverride(URI.create(awsDynamoDBEndPoint))
                .build();
    }

 @Bean
 @ConditionalOnProperty(prefix = "aws", name = "access.secured", havingValue = "enabled")
    public DynamoDbEnhancedClient getDynamoDbEnhancedClientForEC2() {
        return DynamoDbEnhancedClient.builder()
                .dynamoDbClient(getDynamoDbClientForEC2())
                .extensions(AutoGeneratedTimestampRecordExtension.create(), AutoGeneratedUuidExtension.create())
                .build();
    }

Step 2 :- Finally, you can tell DynamoDbEnhancedClient to autogenerate the key for you in the entity class,

@DynamoDbBean
public class MyEntity {
private String myPartionKey;

 @DynamoDbPartitionKey
 @DynamoDbAutoGeneratedUuid 
    public String getMyPartionKey() {
        return myPartionKey;
    }
}