There are more AWS SDK examples available in the [AWS Doc SDK Examples](https://github.com/awsdocs/aws-doc-sdk-examples) GitHub repo.

# Use `GenerateRDSAuthToken` with an AWS SDK
<a name="rds_example_rds_GenerateRDSAuthToken_section"></a>

The following code example shows how to use `GenerateRDSAuthToken`.

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#### [ Java ]

**SDK for Java 2.x**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/rds#code-examples). 
Use the [RdsUtilities](https://sdk.amazonaws.com/java/api/latest/software/amazon/awssdk/services/rds/RdsUtilities.html) class to generate an authentication token.  

```
public class GenerateRDSAuthToken {
    public static void main(String[] args) {
        final String usage = """

                Usage:
                    <dbInstanceIdentifier> <masterUsername>

                Where:
                    dbInstanceIdentifier - The database instance identifier.\s
                    masterUsername - The master user name.\s
                """;

        if (args.length != 2) {
            System.out.println(usage);
            System.exit(1);
        }

        String dbInstanceIdentifier = args[0];
        String masterUsername = args[1];
        Region region = Region.US_WEST_2;
        RdsClient rdsClient = RdsClient.builder()
                .region(region)
                .build();

        String token = getAuthToken(rdsClient, dbInstanceIdentifier, masterUsername);
        System.out.println("The token response is " + token);
    }

    public static String getAuthToken(RdsClient rdsClient, String dbInstanceIdentifier, String masterUsername) {

        RdsUtilities utilities = rdsClient.utilities();
        try {
            GenerateAuthenticationTokenRequest tokenRequest = GenerateAuthenticationTokenRequest.builder()
                    .credentialsProvider(ProfileCredentialsProvider.create())
                    .username(masterUsername)
                    .port(3306)
                    .hostname(dbInstanceIdentifier)
                    .build();

            return utilities.generateAuthenticationToken(tokenRequest);

        } catch (RdsException e) {
            System.out.println(e.getLocalizedMessage());
            System.exit(1);
        }
        return "";
    }
}
```
+  For API details, see [GenerateRDSAuthToken](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/GenerateRDSAuthToken) in *AWS SDK for Java 2.x API Reference*. 

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