# GetRegistrationCode
<a name="API_GetRegistrationCode"></a>

Gets a registration code used to register a CA certificate with AWS IoT.

 AWS IoT will create a registration code as part of this API call if the registration code doesn't exist or has been deleted. If you already have a registration code, this API call will return the same registration code.

Requires permission to access the [GetRegistrationCode](https://docs.aws.amazon.com/service-authorization/latest/reference/list_awsiot.html#awsiot-actions-as-permissions) action.

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

```
GET /registrationcode HTTP/1.1
```

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

The request does not use any URI parameters.

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

The request does not have a request body.

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

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

{
   "registrationCode": "string"
}
```

## Response Elements
<a name="API_GetRegistrationCode_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.

 ** [registrationCode](#API_GetRegistrationCode_ResponseSyntax) **   <a name="iot-GetRegistrationCode-response-registrationCode"></a>
The CA certificate registration code.  
Type: String  
Length Constraints: Fixed length of 64.  
Pattern: `(0x)?[a-fA-F0-9]+` 

## Errors
<a name="API_GetRegistrationCode_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_GetRegistrationCode_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/iot-2015-05-28/GetRegistrationCode) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/iot-2015-05-28/GetRegistrationCode) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/iot-2015-05-28/GetRegistrationCode) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/iot-2015-05-28/GetRegistrationCode) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/iot-2015-05-28/GetRegistrationCode) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/iot-2015-05-28/GetRegistrationCode) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/iot-2015-05-28/GetRegistrationCode) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/iot-2015-05-28/GetRegistrationCode) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/iot-2015-05-28/GetRegistrationCode) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/iot-2015-05-28/GetRegistrationCode)