# ListCertificates
<a name="API_ListCertificates"></a>

Returns a list of the current certificates that have been imported into AWS Transfer Family. If you want to limit the results to a certain number, supply a value for the `MaxResults` parameter. If you ran the command previously and received a value for the `NextToken` parameter, you can supply that value to continue listing certificates from where you left off.

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

```
{
   "MaxResults": number,
   "NextToken": "string"
}
```

## Request Parameters
<a name="API_ListCertificates_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_ListCertificates_RequestSyntax) **   <a name="TransferFamily-ListCertificates-request-MaxResults"></a>
The maximum number of items to return.  
Type: Integer  
Valid Range: Minimum value of 1. Maximum value of 1000.  
Required: No

 ** [NextToken](#API_ListCertificates_RequestSyntax) **   <a name="TransferFamily-ListCertificates-request-NextToken"></a>
When you can get additional results from the `ListCertificates` call, a `NextToken` parameter is returned in the output. You can then pass in a subsequent command to the `NextToken` parameter to continue listing additional certificates.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 6144.  
Required: No

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

```
{
   "Certificates": [ 
      { 
         "ActiveDate": number,
         "Arn": "string",
         "CertificateId": "string",
         "Description": "string",
         "InactiveDate": number,
         "Status": "string",
         "Type": "string",
         "Usage": "string"
      }
   ],
   "NextToken": "string"
}
```

## Response Elements
<a name="API_ListCertificates_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.

 ** [Certificates](#API_ListCertificates_ResponseSyntax) **   <a name="TransferFamily-ListCertificates-response-Certificates"></a>
Returns an array of the certificates that are specified in the `ListCertificates` call.  
Type: Array of [ListedCertificate](API_ListedCertificate.md) objects

 ** [NextToken](#API_ListCertificates_ResponseSyntax) **   <a name="TransferFamily-ListCertificates-response-NextToken"></a>
Returns the next token, which you can use to list the next certificate.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 6144.

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

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

 ** InternalServiceError **   
This exception is thrown when an error occurs in the AWS Transfer Family service.  
HTTP Status Code: 500

 ** InvalidNextTokenException **   
The `NextToken` parameter that was passed is invalid.  
HTTP Status Code: 400

 ** InvalidRequestException **   
This exception is thrown when the client submits a malformed request.  
HTTP Status Code: 400

 ** ResourceNotFoundException **   
This exception is thrown when a resource is not found by the AWSTransfer Family service.  
HTTP Status Code: 400

 ** ServiceUnavailableException **   
The request has failed because the AWSTransfer Family service is not available.  
HTTP Status Code: 500

## See Also
<a name="API_ListCertificates_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/transfer-2018-11-05/ListCertificates) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/transfer-2018-11-05/ListCertificates) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/transfer-2018-11-05/ListCertificates) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/transfer-2018-11-05/ListCertificates) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/transfer-2018-11-05/ListCertificates) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/transfer-2018-11-05/ListCertificates) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/transfer-2018-11-05/ListCertificates) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/transfer-2018-11-05/ListCertificates) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/transfer-2018-11-05/ListCertificates) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/transfer-2018-11-05/ListCertificates)