# ListAccessPolicies


Returns information about a list of OpenSearch Serverless access policies.

## Request Syntax


```
{
   "maxResults": number,
   "nextToken": "string",
   "resource": [ "string" ],
   "type": "string"
}
```

## Request Parameters


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_ListAccessPolicies_RequestSyntax) **   <a name="opensearchserverless-ListAccessPolicies-request-maxResults"></a>
An optional parameter that specifies the maximum number of results to return. You can use `nextToken` to get the next page of results. The default is 20.  
Type: Integer  
Valid Range: Minimum value of 1. Maximum value of 100.  
Required: No

 ** [nextToken](#API_ListAccessPolicies_RequestSyntax) **   <a name="opensearchserverless-ListAccessPolicies-request-nextToken"></a>
If your initial `ListAccessPolicies` operation returns a `nextToken`, you can include the returned `nextToken` in subsequent `ListAccessPolicies` operations, which returns results in the next page.  
Type: String  
Required: No

 ** [resource](#API_ListAccessPolicies_RequestSyntax) **   <a name="opensearchserverless-ListAccessPolicies-request-resource"></a>
Resource filters (can be collections or indexes) that policies can apply to.  
Type: Array of strings  
Array Members: Minimum number of 1 item. Maximum number of 1000 items.  
Required: No

 ** [type](#API_ListAccessPolicies_RequestSyntax) **   <a name="opensearchserverless-ListAccessPolicies-request-type"></a>
The type of access policy.  
Type: String  
Valid Values: `data`   
Required: Yes

## Response Syntax


```
{
   "accessPolicySummaries": [ 
      { 
         "createdDate": number,
         "description": "string",
         "lastModifiedDate": number,
         "name": "string",
         "policyVersion": "string",
         "type": "string"
      }
   ],
   "nextToken": "string"
}
```

## Response Elements


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

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

 ** [accessPolicySummaries](#API_ListAccessPolicies_ResponseSyntax) **   <a name="opensearchserverless-ListAccessPolicies-response-accessPolicySummaries"></a>
Details about the requested access policies.  
Type: Array of [AccessPolicySummary](API_AccessPolicySummary.md) objects

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

## Errors


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

 ** InternalServerException **   
Thrown when an error internal to the service occurs while processing a request.  
HTTP Status Code: 500

 ** ValidationException **   
Thrown when the HTTP request contains invalid input or is missing required input.  
HTTP Status Code: 400

## See Also


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/opensearchserverless-2021-11-01/ListAccessPolicies) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/opensearchserverless-2021-11-01/ListAccessPolicies) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/opensearchserverless-2021-11-01/ListAccessPolicies) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/opensearchserverless-2021-11-01/ListAccessPolicies) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/opensearchserverless-2021-11-01/ListAccessPolicies) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/opensearchserverless-2021-11-01/ListAccessPolicies) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/opensearchserverless-2021-11-01/ListAccessPolicies) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/opensearchserverless-2021-11-01/ListAccessPolicies) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/opensearchserverless-2021-11-01/ListAccessPolicies) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/opensearchserverless-2021-11-01/ListAccessPolicies)