Request Syntax Request Parameters Response Syntax Response Elements Errors See Also

GetUserAttributeVerificationCode

Gets the user attribute verification code for the specified attribute name.

Request Syntax


{
   "AccessToken": "string",
   "AttributeName": "string",
   "ClientMetadata": { 
      "string" : "string" 
   }
}

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.

The request accepts the following data in JSON format.

AccessToken

The access token returned by the server response to get the user attribute verification code.

Type: String

Pattern: [A-Za-z0-9-_=.]+

Required: Yes

AttributeName

The attribute name returned by the server response to get the user attribute verification code.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 32.

Pattern: [\p{L}\p{M}\p{S}\p{N}\p{P}]+

Required: Yes

ClientMetadata

A map of custom key-value pairs that you can provide as input for any custom workflows that this action triggers.

You create custom workflows by assigning AWS Lambda functions to user pool triggers. When you use the GetUserAttributeVerificationCode API action, Amazon Cognito invokes the function that is assigned to the custom message trigger. When Amazon Cognito invokes this function, it passes a JSON payload, which the function receives as input. This payload contains a clientMetadata attribute, which provides the data that you assigned to the ClientMetadata parameter in your GetUserAttributeVerificationCode request. In your function code in AWS Lambda, you can process the clientMetadata value to enhance your workflow for your specific needs.

For more information, see Customizing User Pool Workflows with Lambda Triggers in the Amazon Cognito Developer Guide.

Note

Take the following limitations into consideration when you use the ClientMetadata parameter:

Amazon Cognito does not store the ClientMetadata value. This data is available only to AWS Lambda triggers that are assigned to a user pool to support custom workflows. If your user pool configuration does not include triggers, the ClientMetadata parameter serves no purpose.
Amazon Cognito does not validate the ClientMetadata value.
Amazon Cognito does not encrypt the the ClientMetadata value, so don't use it to provide sensitive information.

Type: String to string map

Required: No

Response Syntax


{
   "CodeDeliveryDetails": { 
      "AttributeName": "string",
      "DeliveryMedium": "string",
      "Destination": "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.

CodeDeliveryDetails

The code delivery details returned by the server in response to the request to get the user attribute verification code.

Type: CodeDeliveryDetailsType object

Errors

For information about the errors that are common to all actions, see Common Errors.

CodeDeliveryFailureException

This exception is thrown when a verification code fails to deliver successfully.

HTTP Status Code: 400

InternalErrorException

This exception is thrown when Amazon Cognito encounters an internal error.

HTTP Status Code: 500

InvalidEmailRoleAccessPolicyException

This exception is thrown when Amazon Cognito is not allowed to use your email identity. HTTP status code: 400.

HTTP Status Code: 400

InvalidLambdaResponseException

This exception is thrown when the Amazon Cognito service encounters an invalid AWS Lambda response.

HTTP Status Code: 400

InvalidParameterException

This exception is thrown when the Amazon Cognito service encounters an invalid parameter.

HTTP Status Code: 400

InvalidSmsRoleAccessPolicyException

This exception is returned when the role provided for SMS configuration does not have permission to publish using Amazon SNS.

HTTP Status Code: 400

InvalidSmsRoleTrustRelationshipException

This exception is thrown when the trust relationship is invalid for the role provided for SMS configuration. This can happen if you do not trust cognito-idp.amazonaws.com or the external ID provided in the role does not match what is provided in the SMS configuration for the user pool.

HTTP Status Code: 400

LimitExceededException

This exception is thrown when a user exceeds the limit for a requested AWS resource.

HTTP Status Code: 400

NotAuthorizedException

This exception is thrown when a user is not authorized.

HTTP Status Code: 400

PasswordResetRequiredException

This exception is thrown when a password reset is required.

HTTP Status Code: 400

ResourceNotFoundException

This exception is thrown when the Amazon Cognito service cannot find the requested resource.

HTTP Status Code: 400

TooManyRequestsException

This exception is thrown when the user has made too many requests for a given operation.

HTTP Status Code: 400

UnexpectedLambdaException

This exception is thrown when the Amazon Cognito service encounters an unexpected exception with the AWS Lambda service.

HTTP Status Code: 400

UserLambdaValidationException

This exception is thrown when the Amazon Cognito service encounters a user validation exception with the AWS Lambda service.

HTTP Status Code: 400

UserNotConfirmedException

This exception is thrown when a user is not confirmed successfully.

HTTP Status Code: 400

UserNotFoundException

This exception is thrown when a user is not found.

HTTP Status Code: 400