# ListFirewallRuleGroups


Retrieves the minimal high-level information for the rule groups that you have defined. 

A single call might return only a partial list of the rule groups. For information, see `MaxResults`. 

## Request Syntax


```
{
   "MaxResults": number,
   "NextToken": "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_route53resolver_ListFirewallRuleGroups_RequestSyntax) **   <a name="Route53Resolver-route53resolver_ListFirewallRuleGroups-request-MaxResults"></a>
The maximum number of objects that you want Resolver to return for this request. If more objects are available, in the response, Resolver provides a `NextToken` value that you can use in a subsequent call to get the next batch of objects.  
If you don't specify a value for `MaxResults`, Resolver returns up to 100 objects.   
Type: Integer  
Valid Range: Minimum value of 1. Maximum value of 100.  
Required: No

 ** [NextToken](#API_route53resolver_ListFirewallRuleGroups_RequestSyntax) **   <a name="Route53Resolver-route53resolver_ListFirewallRuleGroups-request-NextToken"></a>
For the first call to this list request, omit this value.  
When you request a list of objects, Resolver returns at most the number of objects specified in `MaxResults`. If more objects are available for retrieval, Resolver returns a `NextToken` value in the response. To retrieve the next batch of objects, use the token that was returned for the prior request in your next request.  
Type: String  
Required: No

## Response Syntax


```
{
   "FirewallRuleGroups": [ 
      { 
         "Arn": "string",
         "CreatorRequestId": "string",
         "Id": "string",
         "Name": "string",
         "OwnerId": "string",
         "ShareStatus": "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.

 ** [FirewallRuleGroups](#API_route53resolver_ListFirewallRuleGroups_ResponseSyntax) **   <a name="Route53Resolver-route53resolver_ListFirewallRuleGroups-response-FirewallRuleGroups"></a>
A list of your firewall rule groups.  
This might be a partial list of the rule groups that you have defined. For information, see `MaxResults`.   
Type: Array of [FirewallRuleGroupMetadata](API_route53resolver_FirewallRuleGroupMetadata.md) objects

 ** [NextToken](#API_route53resolver_ListFirewallRuleGroups_ResponseSyntax) **   <a name="Route53Resolver-route53resolver_ListFirewallRuleGroups-response-NextToken"></a>
If objects are still available for retrieval, Resolver returns this token in the response. To retrieve the next batch of objects, provide this token in your next request.  
Type: String

## Errors


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

 ** AccessDeniedException **   
The current account doesn't have the IAM permissions required to perform the specified Resolver operation.  
This error can also be thrown when a customer has reached the 5120 character limit for a resource policy for CloudWatch Logs.  
HTTP Status Code: 400

 ** InternalServiceErrorException **   
We encountered an unknown error. Try again in a few minutes.  
HTTP Status Code: 400

 ** ThrottlingException **   
The request was throttled. Try again in a few minutes.  
HTTP Status Code: 400

 ** ValidationException **   
You have provided an invalid command. If you ran the `UpdateFirewallDomains` request. supported values are `ADD`, `REMOVE`, or `REPLACE` a domain.  
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/route53resolver-2018-04-01/ListFirewallRuleGroups) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/route53resolver-2018-04-01/ListFirewallRuleGroups) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/route53resolver-2018-04-01/ListFirewallRuleGroups) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/route53resolver-2018-04-01/ListFirewallRuleGroups) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/route53resolver-2018-04-01/ListFirewallRuleGroups) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/route53resolver-2018-04-01/ListFirewallRuleGroups) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/route53resolver-2018-04-01/ListFirewallRuleGroups) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/route53resolver-2018-04-01/ListFirewallRuleGroups) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/route53resolver-2018-04-01/ListFirewallRuleGroups) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/route53resolver-2018-04-01/ListFirewallRuleGroups)