# ListCertificateProviders
<a name="API_ListCertificateProviders"></a>

Lists all your certificate providers in your Amazon Web Services account.

Requires permission to access the [ListCertificateProviders](https://docs.amazonaws.cn/service-authorization/latest/reference/list_awsiot.html#awsiot-actions-as-permissions) action. 

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

```
GET /certificate-providers/?isAscendingOrder=ascendingOrder&nextToken=nextToken HTTP/1.1
```

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

The request uses the following URI parameters.

 ** [ascendingOrder](#API_ListCertificateProviders_RequestSyntax) **   <a name="iot-ListCertificateProviders-request-uri-ascendingOrder"></a>
Returns the list of certificate providers in ascending alphabetical order.

 ** [nextToken](#API_ListCertificateProviders_RequestSyntax) **   <a name="iot-ListCertificateProviders-request-uri-nextToken"></a>
The token for the next set of results, or `null` if there are no more results.  
Length Constraints: Maximum length of 1024.  
Pattern: `[A-Za-z0-9+/]+={0,2}` 

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

The request does not have a request body.

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

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

{
   "certificateProviders": [ 
      { 
         "certificateProviderArn": "string",
         "certificateProviderName": "string"
      }
   ],
   "nextToken": "string"
}
```

## Response Elements
<a name="API_ListCertificateProviders_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.

 ** [certificateProviders](#API_ListCertificateProviders_ResponseSyntax) **   <a name="iot-ListCertificateProviders-response-certificateProviders"></a>
The list of certificate providers in your Amazon Web Services account.  
Type: Array of [CertificateProviderSummary](API_CertificateProviderSummary.md) objects

 ** [nextToken](#API_ListCertificateProviders_ResponseSyntax) **   <a name="iot-ListCertificateProviders-response-nextToken"></a>
The token for the next set of results, or `null` if there are no more results.  
Type: String  
Length Constraints: Maximum length of 1024.  
Pattern: `[A-Za-z0-9+/]+={0,2}` 

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

 ** InternalFailureException **   
An unexpected error has occurred.    
 ** message **   
The message for the exception.
HTTP Status Code: 500

 ** InvalidRequestException **   
The request is not valid.    
 ** message **   
The message for the exception.
HTTP Status Code: 400

 ** ServiceUnavailableException **   
The service is temporarily unavailable.    
 ** message **   
The message for the exception.
HTTP Status Code: 503

 ** ThrottlingException **   
The rate exceeds the limit.    
 ** message **   
The message for the exception.
HTTP Status Code: 400

 ** UnauthorizedException **   
You are not authorized to perform this operation.    
 ** message **   
The message for the exception.
HTTP Status Code: 401

## See Also
<a name="API_ListCertificateProviders_SeeAlso"></a>

For more information about using this API in one of the language-specific Amazon SDKs, see the following:
+  [Amazon Command Line Interface V2](https://docs.amazonaws.cn/goto/cli2/iot-2015-05-28/ListCertificateProviders) 
+  [Amazon SDK for .NET V4](https://docs.amazonaws.cn/goto/DotNetSDKV4/iot-2015-05-28/ListCertificateProviders) 
+  [Amazon SDK for C\$1\$1](https://docs.amazonaws.cn/goto/SdkForCpp/iot-2015-05-28/ListCertificateProviders) 
+  [Amazon SDK for Go v2](https://docs.amazonaws.cn/goto/SdkForGoV2/iot-2015-05-28/ListCertificateProviders) 
+  [Amazon SDK for Java V2](https://docs.amazonaws.cn/goto/SdkForJavaV2/iot-2015-05-28/ListCertificateProviders) 
+  [Amazon SDK for JavaScript V3](https://docs.amazonaws.cn/goto/SdkForJavaScriptV3/iot-2015-05-28/ListCertificateProviders) 
+  [Amazon SDK for Kotlin](https://docs.amazonaws.cn/goto/SdkForKotlin/iot-2015-05-28/ListCertificateProviders) 
+  [Amazon SDK for PHP V3](https://docs.amazonaws.cn/goto/SdkForPHPV3/iot-2015-05-28/ListCertificateProviders) 
+  [Amazon SDK for Python](https://docs.amazonaws.cn/goto/boto3/iot-2015-05-28/ListCertificateProviders) 
+  [Amazon SDK for Ruby V3](https://docs.amazonaws.cn/goto/SdkForRubyV3/iot-2015-05-28/ListCertificateProviders)