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Showing content from https://docs.aws.amazon.com/iot/latest/apireference/API_CreateRoleAlias.html below:

CreateRoleAlias - AWS IoT

CreateRoleAlias

Creates a role alias.

Requires permission to access the CreateRoleAlias action.

Request Syntax

POST /role-aliases/roleAlias HTTP/1.1
Content-type: application/json

{
   "credentialDurationSeconds": number,
   "roleArn": "string",
   "tags": [ 
      { 
         "Key": "string",
         "Value": "string"
      }
   ]
}

URI Request Parameters

The request uses the following URI parameters.

roleAlias

The role alias that points to a role ARN. This allows you to change the role without having to update the device.

Length Constraints: Minimum length of 1. Maximum length of 128.

Pattern: [\w=,@-]+

Required: Yes

Request Body

The request accepts the following data in JSON format.

credentialDurationSeconds

How long (in seconds) the credentials will be valid. The default value is 3,600 seconds.

This value must be less than or equal to the maximum session duration of the IAM role that the role alias references.

Type: Integer

Valid Range: Minimum value of 900. Maximum value of 43200.

Required: No

roleArn

The role ARN.

Type: String

Length Constraints: Minimum length of 20. Maximum length of 2048.

Required: Yes

tags

Metadata which can be used to manage the role alias.

Note

For URI Request parameters use format: ...key1=value1&key2=value2...

For the CLI command-line parameter use format: &&tags "key1=value1&key2=value2..."

For the cli-input-json file use format: "tags": "key1=value1&key2=value2..."

Type: Array of Tag objects

Required: No

Response Syntax

HTTP/1.1 200
Content-type: application/json

{
   "roleAlias": "string",
   "roleAliasArn": "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.

roleAlias

The role alias.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 128.

Pattern: [\w=,@-]+

roleAliasArn

The role alias ARN.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 2048.

Errors

InternalFailureException

An unexpected error has occurred.

HTTP Status Code: 500

InvalidRequestException

The request is not valid.

HTTP Status Code: 400

LimitExceededException

A limit has been exceeded.

HTTP Status Code: 410

ResourceAlreadyExistsException

The resource already exists.

HTTP Status Code: 409

ServiceUnavailableException

The service is temporarily unavailable.

HTTP Status Code: 503

ThrottlingException

The rate exceeds the limit.

HTTP Status Code: 400

UnauthorizedException

You are not authorized to perform this operation.

HTTP Status Code: 401