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

# Use `ListDomainNames` with an AWS SDK
<a name="opensearch_example_opensearch_ListDomainNames_section"></a>

The following code examples show how to use `ListDomainNames`.

Action examples are code excerpts from larger programs and must be run in context. You can see this action in context in the following code example: 
+  [Learn OpenSearch Service core operations](opensearch_example_opensearch_Scenario_section.md) 

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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/opensearch#code-examples). 

```
    /**
     * Asynchronously lists all the domains in the current AWS account.
     * @return a {@link CompletableFuture} that, when completed, contains a list of {@link DomainInfo} objects representing
     *         the domains in the account.
     * @throws RuntimeException if there was a failure while listing the domains.
     */
    public CompletableFuture<List<DomainInfo>> listAllDomainsAsync() {
        ListDomainNamesRequest namesRequest = ListDomainNamesRequest.builder()
            .engineType("OpenSearch")
            .build();

        return getAsyncClient().listDomainNames(namesRequest)
            .handle((response, exception) -> {
                if (exception != null) {
                    throw new RuntimeException("Failed to list all domains", exception);
                }
                return response.domainNames();  // Return the list of domain names on success
            });
    }
```
+  For API details, see [ListDomainNames](https://docs.aws.amazon.com/goto/SdkForJavaV2/es-2021-01-01/ListDomainNames) in *AWS SDK for Java 2.x API Reference*. 

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#### [ Kotlin ]

**SDK for Kotlin**  
 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/kotlin/services/opensearch#code-examples). 

```
suspend fun listAllDomains() {
    OpenSearchClient.fromEnvironment { region = "us-east-1" }.use { searchClient ->
        val response: ListDomainNamesResponse = searchClient.listDomainNames(ListDomainNamesRequest {})
        response.domainNames?.forEach { domain ->
            println("Domain name is " + domain.domainName)
        }
    }
}
```
+  For API details, see [ListDomainNames](https://sdk.amazonaws.com/kotlin/api/latest/index.html) in *AWS SDK for Kotlin API reference*. 

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