# ListApplications
<a name="API_ListApplications"></a>

Lists all OpenSearch applications under your account.

## Request Syntax
<a name="API_ListApplications_RequestSyntax"></a>

```
GET /2021-01-01/opensearch/list-applications?maxResults=maxResults&nextToken=nextToken&statuses=statuses HTTP/1.1
```

## URI Request Parameters
<a name="API_ListApplications_RequestParameters"></a>

The request uses the following URI parameters.

 ** [maxResults](#API_ListApplications_RequestSyntax) **   <a name="opensearchservice-ListApplications-request-uri-maxResults"></a>
An optional parameter that specifies the maximum number of results to return for a given request.  
Valid Range: Maximum value of 100.

 ** [nextToken](#API_ListApplications_RequestSyntax) **   <a name="opensearchservice-ListApplications-request-uri-nextToken"></a>
When `nextToken` is returned, there are more results available. The value of `nextToken` is a unique pagination token for each page. Send the request again using the returned token to retrieve the next page.

 ** [statuses](#API_ListApplications_RequestSyntax) **   <a name="opensearchservice-ListApplications-request-uri-statuses"></a>
Filters the list of OpenSearch applications by status. Possible values: `CREATING`, `UPDATING`, `DELETING`, `FAILED`, `ACTIVE`, and `DELETED`.  
Valid Values: `CREATING | UPDATING | DELETING | ACTIVE | FAILED` 

## Request Body
<a name="API_ListApplications_RequestBody"></a>

The request does not have a request body.

## Response Syntax
<a name="API_ListApplications_ResponseSyntax"></a>

```
HTTP/1.1 200
Content-type: application/json

{
   "ApplicationSummaries": [ 
      { 
         "arn": "string",
         "createdAt": number,
         "endpoint": "string",
         "id": "string",
         "lastUpdatedAt": number,
         "name": "string",
         "status": "string"
      }
   ],
   "nextToken": "string"
}
```

## Response Elements
<a name="API_ListApplications_ResponseElements"></a>

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

 ** [ApplicationSummaries](#API_ListApplications_ResponseSyntax) **   <a name="opensearchservice-ListApplications-response-ApplicationSummaries"></a>
Summarizes OpenSearch applications, including ID, ARN, name, endpoint, status, creation time, and last update time.  
Type: Array of [ApplicationSummary](API_ApplicationSummary.md) objects

 ** [nextToken](#API_ListApplications_ResponseSyntax) **   <a name="opensearchservice-ListApplications-response-nextToken"></a>
When `nextToken` is returned, there are more results available. The value of `nextToken` is a unique pagination token for each page. Send the request again using the returned token to retrieve the next page.  
Type: String

## Errors
<a name="API_ListApplications_Errors"></a>

For information about the errors that are common to all actions, see [Common Error Types](CommonErrors.md).

 ** AccessDeniedException **   
An error occurred because you don't have permissions to access the resource.  
HTTP Status Code: 403

 ** BaseException **   
An error occurred while processing the request.    
 ** message **   
A description of the error.
HTTP Status Code: 400

 ** DisabledOperationException **   
An error occured because the client wanted to access an unsupported operation.  
HTTP Status Code: 409

 ** InternalException **   
Request processing failed because of an unknown error, exception, or internal failure.  
HTTP Status Code: 500

 ** ResourceNotFoundException **   
An exception for accessing or deleting a resource that doesn't exist.  
HTTP Status Code: 409

 ** ValidationException **   
An exception for accessing or deleting a resource that doesn't exist.  
HTTP Status Code: 400

## See Also
<a name="API_ListApplications_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS Command Line Interface V2](https://docs.aws.amazon.com/goto/cli2/opensearch-2021-01-01/ListApplications) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/opensearch-2021-01-01/ListApplications) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/opensearch-2021-01-01/ListApplications) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/opensearch-2021-01-01/ListApplications) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/opensearch-2021-01-01/ListApplications) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/opensearch-2021-01-01/ListApplications) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/opensearch-2021-01-01/ListApplications) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/opensearch-2021-01-01/ListApplications) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/opensearch-2021-01-01/ListApplications) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/opensearch-2021-01-01/ListApplications)