Create an IAM user using an AWS SDK

The following code examples show how to create an IAM user.

Warning

To avoid security risks, don't use IAM users for authentication when developing purpose-built software or working with real data. Instead, use federation with an identity provider such as AWS IAM Identity Center (successor to AWS Single Sign-On).

Action examples are code excerpts from larger programs and must be run in context. You can see this action in context in the following code examples:

.NET

AWS SDK for .NET

Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.


    /// <summary>
    /// Create an IAM user.
    /// </summary>
    /// <param name="userName">The username for the new IAM user.</param>
    /// <returns>The IAM user that was created.</returns>
    public async Task<User> CreateUserAsync(string userName)
    {
        var response = await _IAMService.CreateUserAsync(new CreateUserRequest { UserName = userName });
        return response.User;
    }

For API details, see CreateUser in AWS SDK for .NET API Reference.

Bash

AWS CLI with Bash script

Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.


###############################################################################
# function iecho
#
# This function enables the script to display the specified text only if
# the global variable $VERBOSE is set to true.
###############################################################################
function iecho() {
  if [[ $VERBOSE == true ]]; then
    echo "$@"
  fi
}

###############################################################################
# function errecho
#
# This function outputs everything sent to it to STDERR (standard error output).
###############################################################################
function errecho() {
  printf "%s\n" "$*" 1>&2
}

###############################################################################
# function iam_create_user
#
# This function creates the specified IAM user, unless
# it already exists.
#
# Parameters:
#       -u user_name  -- The name of the user to create.
#
# Returns:
#       The ARN of the user.
#     And:
#       0 - If successful.
#       1 - If it fails.
###############################################################################
function iam_create_user() {
  local user_name response
  local option OPTARG # Required to use getopts command in a function.

  # bashsupport disable=BP5008
  function usage() {
    echo "function iam_create_user"
    echo "Creates an WS Identity and Access Management (IAM) user. You must supply a username:"
    echo "  -u user_name    The name of the user. It must be unique within the account."
    echo ""
  }

  # Retrieve the calling parameters.
  while getopts "u:h" option; do
    case "${option}" in
      u) user_name="${OPTARG}" ;;
      h)
        usage
        return 0
        ;;
      \?)
        echo "Invalid parameter"
        usage
        return 1
        ;;
    esac
  done
  export OPTIND=1

  if [[ -z "$user_name" ]]; then
    errecho "ERROR: You must provide a username with the -u parameter."
    usage
    return 1
  fi

  iecho "Parameters:\n"
  iecho "    User name:   $user_name"
  iecho ""

  # If the user already exists, we don't want to try to create it.
  if (iam_user_exists "$user_name"); then
    errecho "ERROR: A user with that name already exists in the account."
    return 1
  fi

  response=$(aws iam create-user --user-name "$user_name" \
    --output text \
    --query 'User.Arn')

  local error_code=${?}

  if [[ $error_code -ne 0 ]]; then
    aws_cli_error_log $error_code
    errecho "ERROR: AWS reports create-user operation failed.$response"
    return 1
  fi

  echo "$response"

  return 0
}

For API details, see CreateUser in AWS CLI Command Reference.

C++

SDK for C++

Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.


    Aws::IAM::IAMClient iam(clientConfig);

    Aws::IAM::Model::CreateUserRequest create_request;
    create_request.SetUserName(userName);

    auto create_outcome = iam.CreateUser(create_request);
    if (!create_outcome.IsSuccess()) {
        std::cerr << "Error creating IAM user " << userName << ":" <<
                  create_outcome.GetError().GetMessage() << std::endl;
    }
    else {
        std::cout << "Successfully created IAM user " << userName << std::endl;
    }

    return create_outcome.IsSuccess();

For API details, see CreateUser in AWS SDK for C++ API Reference.

Go

SDK for Go V2

Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.



// UserWrapper encapsulates user actions used in the examples.
// It contains an IAM service client that is used to perform user actions.
type UserWrapper struct {
	IamClient *iam.Client
}



// CreateUser creates a new user with the specified name.
func (wrapper UserWrapper) CreateUser(userName string) (*types.User, error) {
	var user *types.User
	result, err := wrapper.IamClient.CreateUser(context.TODO(), &iam.CreateUserInput{
		UserName: aws.String(userName),
	})
	if err != nil {
		log.Printf("Couldn't create user %v. Here's why: %v\n", userName, err)
	} else {
		user = result.User
	}
	return user, err
}

For API details, see CreateUser in AWS SDK for Go API Reference.

Java

SDK for Java 2.x

Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.


    public static String createIAMUser(IamClient iam, String username ) {

        try {
            // Create an IamWaiter object
            IamWaiter iamWaiter = iam.waiter();

            CreateUserRequest request = CreateUserRequest.builder()
                .userName(username)
                .build();

            CreateUserResponse response = iam.createUser(request);

            // Wait until the user is created
            GetUserRequest userRequest = GetUserRequest.builder()
                .userName(response.user().userName())
                .build();

            WaiterResponse<GetUserResponse> waitUntilUserExists = iamWaiter.waitUntilUserExists(userRequest);
            waitUntilUserExists.matched().response().ifPresent(System.out::println);
            return response.user().userName();

        } catch (IamException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
       return "";
    }

For API details, see CreateUser in AWS SDK for Java 2.x API Reference.

JavaScript

SDK for JavaScript (v3)

Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.

Create the user.


import { CreateUserCommand, IAMClient } from "@aws-sdk/client-iam";

const client = new IAMClient({});

/**
 *
 * @param {string} name
 */
export const createUser = (name) => {
  const command = new CreateUserCommand({ UserName: name });
  return client.send(command);
};

For more information, see AWS SDK for JavaScript Developer Guide.
For API details, see CreateUser in AWS SDK for JavaScript API Reference.

SDK for JavaScript (v2)

Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.


// Load the AWS SDK for Node.js
var AWS = require('aws-sdk');
// Set the region 
AWS.config.update({region: 'REGION'});

// Create the IAM service object
var iam = new AWS.IAM({apiVersion: '2010-05-08'});

var params = {
  UserName: process.argv[2]
};

iam.getUser(params, function(err, data) {
  if (err && err.code === 'NoSuchEntity') {
    iam.createUser(params, function(err, data) {
      if (err) {
        console.log("Error", err);
      } else {
        console.log("Success", data);
      }
    });
  } else {
    console.log("User " + process.argv[2] + " already exists", data.User.UserId);
  }
});

For more information, see AWS SDK for JavaScript Developer Guide.
For API details, see CreateUser in AWS SDK for JavaScript API Reference.

Kotlin

SDK for Kotlin

Note

This is prerelease documentation for a feature in preview release. It is subject to change.

Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.


suspend fun createIAMUser(usernameVal: String?): String? {

    val request = CreateUserRequest {
        userName = usernameVal
    }

    IamClient { region = "AWS_GLOBAL" }.use { iamClient ->
        val response = iamClient.createUser(request)
        return response.user?.userName
    }
}

For API details, see CreateUser in AWS SDK for Kotlin API reference.

PHP

SDK for PHP

Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.


$uuid = uniqid();
$service = new IAMService();

$user = $service->createUser("iam_demo_user_$uuid");
echo "Created user with the arn: {$user['Arn']}\n";


    /**
     * @param string $name
     * @return array
     * @throws AwsException
     */
    public function createUser(string $name): array
    {
        $result = $this->iamClient->createUser([
            'UserName' => $name,
        ]);

        return $result['User'];
    }

For API details, see CreateUser in AWS SDK for PHP API Reference.

Python

SDK for Python (Boto3)

Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.


def create_user(user_name):
    """
    Creates a user. By default, a user has no permissions or access keys.

    :param user_name: The name of the user.
    :return: The newly created user.
    """
    try:
        user = iam.create_user(UserName=user_name)
        logger.info("Created user %s.", user.name)
    except ClientError:
        logger.exception("Couldn't create user %s.", user_name)
        raise
    else:
        return user

For API details, see CreateUser in AWS SDK for Python (Boto3) API Reference.

Ruby

SDK for Ruby

Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.


  # Creates a user.
  #
  # @param user_name [String] The name to give the user.
  # @return [Aws::IAM::User] The newly created user.
  def create_user(user_name)
    user = @iam_resource.create_user(user_name: user_name)
    puts("Created demo user named #{user.name}.")
  rescue Aws::Errors::ServiceError => e
    puts("Tried and failed to create demo user.")
    puts("\t#{e.code}: #{e.message}")
    puts("\nCan't continue the demo without a user!")
    raise
  else
    user
  end

For API details, see CreateUser in AWS SDK for Ruby API Reference.

Rust

SDK for Rust

Note

This documentation is for an SDK in preview release. The SDK is subject to change and should not be used in production.

Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.


pub async fn create_user(client: &iamClient, user_name: &str) -> Result<User, iamError> {
    let response = client.create_user().user_name(user_name).send().await?;

    Ok(response.user.unwrap())
}

For API details, see CreateUser in AWS SDK for Rust API reference.

Swift

SDK for Swift

Note

This is prerelease documentation for an SDK in preview release. It is subject to change.

Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.


    public func createUser(name: String) async throws -> String {
        let input = CreateUserInput(
            userName: name
        )
        do {
            let output = try await client.createUser(input: input)
            guard let user = output.user else {
                throw ServiceHandlerError.noSuchUser
            }
            guard let id = user.userId else {
                throw ServiceHandlerError.noSuchUser
            }
            return id
        } catch {
            throw error
        }
    }

For API details, see CreateUser in AWS SDK for Swift API reference.

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