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

Lists Amazon Q Business applications.

**Note**  
Amazon Q Business applications may securely transmit data for processing across AWS Regions within your geography. For more information, see [Cross region inference in Amazon Q Business](https://docs.aws.amazon.com/amazonq/latest/qbusiness-ug/cross-region-inference.html).

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

```
GET /applications?maxResults=maxResults&nextToken=nextToken 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="qbusiness-ListApplications-request-uri-maxResults"></a>
The maximum number of Amazon Q Business applications to return.  
Valid Range: Minimum value of 1. Maximum value of 100.

 ** [nextToken](#API_ListApplications_RequestSyntax) **   <a name="qbusiness-ListApplications-request-uri-nextToken"></a>
If the `maxResults` response was incomplete because there is more data to retrieve, Amazon Q Business returns a pagination token in the response. You can use this pagination token to retrieve the next set of Amazon Q Business applications.  
Length Constraints: Minimum length of 1. Maximum length of 800.

## 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

{
   "applications": [ 
      { 
         "applicationId": "string",
         "createdAt": number,
         "displayName": "string",
         "identityType": "string",
         "quickSightConfiguration": { 
            "clientNamespace": "string"
         },
         "status": "string",
         "updatedAt": number
      }
   ],
   "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.

 ** [applications](#API_ListApplications_ResponseSyntax) **   <a name="qbusiness-ListApplications-response-applications"></a>
An array of summary information on the configuration of one or more Amazon Q Business applications.  
Type: Array of [Application](API_Application.md) objects

 ** [nextToken](#API_ListApplications_ResponseSyntax) **   <a name="qbusiness-ListApplications-response-nextToken"></a>
If the response is truncated, Amazon Q Business returns this token. You can use this token in a subsequent request to retrieve the next set of applications.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 800.

## 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 **   
 You don't have access to perform this action. Make sure you have the required permission policies and user accounts and try again.  
HTTP Status Code: 403

 ** InternalServerException **   
An issue occurred with the internal server used for your Amazon Q Business service. Wait some minutes and try again, or contact [Support](http://aws.amazon.com/contact-us/) for help.  
HTTP Status Code: 500

 ** ThrottlingException **   
The request was denied due to throttling. Reduce the number of requests and try again.  
HTTP Status Code: 429

 ** ValidationException **   
The input doesn't meet the constraints set by the Amazon Q Business service. Provide the correct input and try again.    
 ** fields **   
The input field(s) that failed validation.  
 ** message **   
The message describing the `ValidationException`.  
 ** reason **   
The reason for the `ValidationException`.
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/qbusiness-2023-11-27/ListApplications) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/qbusiness-2023-11-27/ListApplications) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/qbusiness-2023-11-27/ListApplications) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/qbusiness-2023-11-27/ListApplications) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/qbusiness-2023-11-27/ListApplications) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/qbusiness-2023-11-27/ListApplications) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/qbusiness-2023-11-27/ListApplications) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/qbusiness-2023-11-27/ListApplications) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/qbusiness-2023-11-27/ListApplications) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/qbusiness-2023-11-27/ListApplications)