# ListEventSubscriptions
<a name="API_ListEventSubscriptions"></a>

**Important**  
End of support notice: On May 20, 2026, AWS will end support for (Amazon Inspector Classic). After May 20, 2026, you will no longer be able to access the Amazon Inspector Classic console or Amazon Inspector Classic resources. For more information, see [Amazon Inspector Classic end of support](https://docs.aws.amazon.com/inspector/v1/userguide/inspector-migration.html). 

Lists all the event subscriptions for the assessment template that is specified by the ARN of the assessment template. For more information, see [SubscribeToEvent](API_SubscribeToEvent.md) and [UnsubscribeFromEvent](API_UnsubscribeFromEvent.md).

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

```
{
   "maxResults": number,
   "nextToken": "string",
   "resourceArn": "string"
}
```

## Request Parameters
<a name="API_ListEventSubscriptions_RequestParameters"></a>

For information about the parameters that are common to all actions, see [Common Parameters](CommonParameters.md).

The request accepts the following data in JSON format.

 ** [maxResults](#API_ListEventSubscriptions_RequestSyntax) **   <a name="Inspector-ListEventSubscriptions-request-maxResults"></a>
You can use this parameter to indicate the maximum number of items you want in the response. The default value is 10. The maximum value is 500.  
Type: Integer  
Required: No

 ** [nextToken](#API_ListEventSubscriptions_RequestSyntax) **   <a name="Inspector-ListEventSubscriptions-request-nextToken"></a>
You can use this parameter when paginating results. Set the value of this parameter to null on your first call to the **ListEventSubscriptions** action. Subsequent calls to the action fill **nextToken** in the request with the value of **NextToken** from the previous response to continue listing data.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 300.  
Required: No

 ** [resourceArn](#API_ListEventSubscriptions_RequestSyntax) **   <a name="Inspector-ListEventSubscriptions-request-resourceArn"></a>
The ARN of the assessment template for which you want to list the existing event subscriptions.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 300.  
Required: No

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

```
{
   "nextToken": "string",
   "subscriptions": [ 
      { 
         "eventSubscriptions": [ 
            { 
               "event": "string",
               "subscribedAt": number
            }
         ],
         "resourceArn": "string",
         "topicArn": "string"
      }
   ]
}
```

## Response Elements
<a name="API_ListEventSubscriptions_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.

 ** [nextToken](#API_ListEventSubscriptions_ResponseSyntax) **   <a name="Inspector-ListEventSubscriptions-response-nextToken"></a>
 When a response is generated, if there is more data to be listed, this parameter is present in the response and contains the value to use for the **nextToken** parameter in a subsequent pagination request. If there is no more data to be listed, this parameter is set to null.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 300.

 ** [subscriptions](#API_ListEventSubscriptions_ResponseSyntax) **   <a name="Inspector-ListEventSubscriptions-response-subscriptions"></a>
End of support notice: On May 20, 2026, AWS will end support for (Amazon Inspector Classic). After May 20, 2026, you will no longer be able to access the Amazon Inspector Classic console or Amazon Inspector Classic resources. For more information, see [Amazon Inspector Classic end of support](https://docs.aws.amazon.com/inspector/v1/userguide/inspector-migration.html). 
Details of the returned event subscriptions.  
Type: Array of [Subscription](API_Subscription.md) objects  
Array Members: Minimum number of 0 items. Maximum number of 50 items.

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

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

 ** InternalException **   
Internal server error.    
 ** canRetry **   
You can immediately retry your request.  
 ** message **   
Details of the exception error.
HTTP Status Code: 500

 ** InvalidInputException **   
The request was rejected because an invalid or out-of-range value was supplied for an input parameter.    
 ** canRetry **   
You can immediately retry your request.  
 ** errorCode **   
Code that indicates the type of error that is generated.  
 ** message **   
Details of the exception error.
HTTP Status Code: 400

 ** NoSuchEntityException **   
The request was rejected because it referenced an entity that does not exist. The error code describes the entity.    
 ** canRetry **   
You can immediately retry your request.  
 ** errorCode **   
Code that indicates the type of error that is generated.  
 ** message **   
Details of the exception error.
HTTP Status Code: 400

## Examples
<a name="API_ListEventSubscriptions_Examples"></a>

### Example
<a name="API_ListEventSubscriptions_Example_1"></a>

This example illustrates one usage of ListEventSubscriptions.

#### Sample Request
<a name="API_ListEventSubscriptions_Example_1_Request"></a>

```
               
                  POST / HTTP/1.1
                  Host: inspector.us-west-2.amazonaws.com
                  Accept-Encoding: identity
                  Content-Length: 97
                  X-Amz-Target: InspectorService.ListEventSubscriptions
                  X-Amz-Date: 20160331T202943Z
                  User-Agent: aws-cli/1.10.12 Python/2.7.9 Windows/7 botocore/1.4.3
                  Content-Type: application/x-amz-json-1.1
                  Authorization: AUTHPARAMS
                  {
                    "resourceArn": "arn:aws:inspector:us-west-2:123456789012:target/0-nvgVhaxX/template/0-7sbz2Kz0"
                  }
```

#### Sample Response
<a name="API_ListEventSubscriptions_Example_1_Response"></a>

```
               
                  HTTP/1.1 200 OK
                  x-amzn-RequestId: 4e21c005-f77f-11e5-823c-bd257ba1495d
                  Content-Type: application/x-amz-json-1.1
                  Content-Length: 272
                  Date: Thu, 31 Mar 2016 20:29:44 GMT
                  {
                    "subscriptions": [
                      {
                        "eventSubscriptions": [
                          {
                            "event": "ASSESSMENT_RUN_COMPLETED",
                            "subscribedAt": 1459455440.867
                          }
                        ],
                        "resourceArn": "arn:aws:inspector:us-west-2:123456789012:target/0-nvgVhaxX/template/0-7sbz2Kz0",
                        "topicArn": "arn:aws:sns:us-west-2:123456789012:exampletopic"
                      }
                    ]
                  }
```

## See Also
<a name="API_ListEventSubscriptions_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/inspector-2016-02-16/ListEventSubscriptions) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/inspector-2016-02-16/ListEventSubscriptions) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/inspector-2016-02-16/ListEventSubscriptions) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/inspector-2016-02-16/ListEventSubscriptions) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/inspector-2016-02-16/ListEventSubscriptions) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/inspector-2016-02-16/ListEventSubscriptions) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/inspector-2016-02-16/ListEventSubscriptions) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/inspector-2016-02-16/ListEventSubscriptions) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/inspector-2016-02-16/ListEventSubscriptions) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/inspector-2016-02-16/ListEventSubscriptions)