# ListTypeRegistrations
<a name="API_ListTypeRegistrations"></a>

Returns a list of registration tokens for the specified extension(s).

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

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

 ** MaxResults **   
The maximum number of results to be returned with a single call. If the number of available results exceeds this maximum, the response includes a `NextToken` value that you can assign to the `NextToken` request parameter to get the next set of results.  
Type: Integer  
Valid Range: Minimum value of 1. Maximum value of 100.  
Required: No

 ** NextToken **   
The token for the next set of items to return. (You received this token from a previous call.)  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 1024.  
Required: No

 ** RegistrationStatusFilter **   
The current status of the extension registration request.  
The default is `IN_PROGRESS`.  
Type: String  
Valid Values: `COMPLETE | IN_PROGRESS | FAILED`   
Required: No

 ** Type **   
The kind of extension.  
Conditional: You must specify either `TypeName` and `Type`, or `Arn`.  
Type: String  
Valid Values: `RESOURCE | MODULE | HOOK`   
Required: No

 ** TypeArn **   
The Amazon Resource Name (ARN) of the extension.  
Conditional: You must specify either `TypeName` and `Type`, or `Arn`.  
Type: String  
Length Constraints: Maximum length of 1024.  
Pattern: `arn:aws[A-Za-z0-9-]{0,64}:cloudformation:[A-Za-z0-9-]{1,64}:([0-9]{12})?:type/.+`   
Required: No

 ** TypeName **   
The name of the extension.  
Conditional: You must specify either `TypeName` and `Type`, or `Arn`.  
Type: String  
Length Constraints: Minimum length of 10. Maximum length of 204.  
Pattern: `[A-Za-z0-9]{2,64}::[A-Za-z0-9]{2,64}::[A-Za-z0-9]{2,64}(::MODULE){0,1}`   
Required: No

## Response Elements
<a name="API_ListTypeRegistrations_ResponseElements"></a>

The following elements are returned by the service.

 ** NextToken **   
If the request doesn't return all the remaining results, `NextToken` is set to a token. To retrieve the next set of results, call this action again and assign that token to the request object's `NextToken` parameter. If the request returns all results, `NextToken` is set to `null`.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 1024.

 **RegistrationTokenList.member.N**   
A list of extension registration tokens.  
Use [DescribeTypeRegistration](API_DescribeTypeRegistration.md) to return detailed information about a type registration request.  
Type: Array of strings  
Length Constraints: Minimum length of 1. Maximum length of 128.  
Pattern: `[a-zA-Z0-9][-a-zA-Z0-9]*` 

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

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

 ** CFNRegistry **   
An error occurred during a CloudFormation registry operation.    
 ** Message **   
A message with details about the error that occurred.
HTTP Status Code: 400

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

### ListTypeRegistrations
<a name="API_ListTypeRegistrations_Example_1"></a>

The example below returns a list of the registration tokens for the three versions of `My::Resource::Example`, a private resource type, that have completed registration.

#### Sample Request
<a name="API_ListTypeRegistrations_Example_1_Request"></a>

```
https://cloudformation.us-east-1.amazonaws.com/
 ?Action=ListTypeRegistrations
 &Version=2010-05-15
 &TypeName=My::Resource::Example
 &Type=RESOURCE
 &RegistrationStatusFilter=COMPLETE
 &X-Amz-Algorithm=AWS4-HMAC-SHA256
 &X-Amz-Credential=[Access key ID and scope]
 &X-Amz-Date=20191204T071759Z
 &X-Amz-SignedHeaders=content-type;host
 &X-Amz-Signature=[Signature]
```

#### Sample Response
<a name="API_ListTypeRegistrations_Example_1_Response"></a>

```
<ListTypeRegistrationsResponse xmlns="http://cloudformation.amazonaws.com/doc/2010-05-15/">
  <ListTypeRegistrationsResult>
    <RegistrationTokenList>
      <member>b5c40e0e-68da-47d2-8ed2-b8db7example</member>
      <member>03458954-61b1-44e9-90d8-f1b8aexample</member>
      <member>356b9e72-7d1e-43aa-83ba-81c2example</member>
    </RegistrationTokenList>
  </ListTypeRegistrationsResult>
  <ResponseMetadata>
    <RequestId>de6b93f6-c68b-4840-9537-eb2357example</RequestId>
  </ResponseMetadata>
</ListTypeRegistrationsResponse>
```

## See Also
<a name="API_ListTypeRegistrations_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/cloudformation-2010-05-15/ListTypeRegistrations) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/cloudformation-2010-05-15/ListTypeRegistrations) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/cloudformation-2010-05-15/ListTypeRegistrations) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/cloudformation-2010-05-15/ListTypeRegistrations) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/cloudformation-2010-05-15/ListTypeRegistrations) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/cloudformation-2010-05-15/ListTypeRegistrations) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/cloudformation-2010-05-15/ListTypeRegistrations) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/cloudformation-2010-05-15/ListTypeRegistrations) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/cloudformation-2010-05-15/ListTypeRegistrations) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/cloudformation-2010-05-15/ListTypeRegistrations)