# ListOperationEvents
<a name="API_ListOperationEvents"></a>

Returns a list of operations events.

Available parameters include `OperationID`, as well as optional parameters `MaxResults`, `NextToken`, and `Filters`.

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

```
POST /list-operation-events HTTP/1.1
Content-type: application/json

{
   "Filters": [ 
      { 
         "Name": "string",
         "Operator": "string",
         "Value": "string"
      }
   ],
   "MaxResults": number,
   "NextToken": "string",
   "OperationId": "string"
}
```

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

The request does not use any URI parameters.

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

The request accepts the following data in JSON format.

 ** [Filters](#API_ListOperationEvents_RequestSyntax) **   <a name="ssmsap-ListOperationEvents-request-Filters"></a>
Optionally specify filters to narrow the returned operation event items.  
Valid filter names include `status`, `resourceID`, and `resourceType`. The valid operator for all three filters is `Equals`.  
Type: Array of [Filter](API_Filter.md) objects  
Array Members: Minimum number of 1 item. Maximum number of 10 items.  
Required: No

 ** [MaxResults](#API_ListOperationEvents_RequestSyntax) **   <a name="ssmsap-ListOperationEvents-request-MaxResults"></a>
The maximum number of results to return with a single call. To retrieve the remaining results, make another call with the returned nextToken value.  
If you do not specify a value for `MaxResults`, the request returns 50 items per page by default.  
Type: Integer  
Valid Range: Minimum value of 1. Maximum value of 50.  
Required: No

 ** [NextToken](#API_ListOperationEvents_RequestSyntax) **   <a name="ssmsap-ListOperationEvents-request-NextToken"></a>
The token to use to retrieve the next page of results. This value is null when there are no more results to return.  
Type: String  
Pattern: `.{16,2048}`   
Required: No

 ** [OperationId](#API_ListOperationEvents_RequestSyntax) **   <a name="ssmsap-ListOperationEvents-request-OperationId"></a>
The ID of the operation.  
Type: String  
Pattern: `[{]?[0-9a-fA-F]{8}-([0-9a-fA-F]{4}-){3}[0-9a-fA-F]{12}[}]?`   
Required: Yes

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

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

{
   "NextToken": "string",
   "OperationEvents": [ 
      { 
         "Description": "string",
         "Resource": { 
            "ResourceArn": "string",
            "ResourceType": "string"
         },
         "Status": "string",
         "StatusMessage": "string",
         "Timestamp": number
      }
   ]
}
```

## Response Elements
<a name="API_ListOperationEvents_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_ListOperationEvents_ResponseSyntax) **   <a name="ssmsap-ListOperationEvents-response-NextToken"></a>
The token to use to retrieve the next page of results. This value is null when there are no more results to return.  
Type: String  
Pattern: `.{16,2048}` 

 ** [OperationEvents](#API_ListOperationEvents_ResponseSyntax) **   <a name="ssmsap-ListOperationEvents-response-OperationEvents"></a>
A returned list of operation events that meet the filter criteria.  
Type: Array of [OperationEvent](API_OperationEvent.md) objects

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

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

 ** InternalServerException **   
An internal error has occurred.  
HTTP Status Code: 500

 ** ValidationException **   
The input fails to satisfy the constraints specified by an AWS service.   
HTTP Status Code: 400

## See Also
<a name="API_ListOperationEvents_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/ssm-sap-2018-05-10/ListOperationEvents) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/ssm-sap-2018-05-10/ListOperationEvents) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/ssm-sap-2018-05-10/ListOperationEvents) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/ssm-sap-2018-05-10/ListOperationEvents) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/ssm-sap-2018-05-10/ListOperationEvents) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/ssm-sap-2018-05-10/ListOperationEvents) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/ssm-sap-2018-05-10/ListOperationEvents) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/ssm-sap-2018-05-10/ListOperationEvents) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/ssm-sap-2018-05-10/ListOperationEvents) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/ssm-sap-2018-05-10/ListOperationEvents)