Create an IAM access key using an Amazon SDK

    /// <summary>
    /// Create an IAM access key for a user.
    /// </summary>
    /// <param name="userName">The username for which to create the IAM access
    /// key.</param>
    /// <returns>The AccessKey.</returns>
    public async Task<AccessKey> CreateAccessKeyAsync(string userName)
    {
        var response = await _IAMService.CreateAccessKeyAsync(new CreateAccessKeyRequest
        {
            UserName = userName,
        });

        return response.AccessKey;

    }

Aws::String AwsDoc::IAM::createAccessKey(const Aws::String &userName,
                                         const Aws::Client::ClientConfiguration &clientConfig) {
    Aws::IAM::IAMClient iam(clientConfig);

    Aws::IAM::Model::CreateAccessKeyRequest request;
    request.SetUserName(userName);

    Aws::String result;
    Aws::IAM::Model::CreateAccessKeyOutcome outcome = iam.CreateAccessKey(request);
    if (!outcome.IsSuccess()) {
        std::cerr << "Error creating access key for IAM user " << userName
                  << ":" << outcome.GetError().GetMessage() << std::endl;
    }
    else {
        const auto &accessKey = outcome.GetResult().GetAccessKey();
        std::cout << "Successfully created access key for IAM user " <<
                  userName << std::endl << "  aws_access_key_id = " <<
                  accessKey.GetAccessKeyId() << std::endl <<
                  " aws_secret_access_key = " << accessKey.GetSecretAccessKey() <<
                  std::endl;
        result = accessKey.GetAccessKeyId();
    }

    return result;
}

// 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
}



// CreateAccessKeyPair creates an access key for a user. The returned access key contains
// the ID and secret credentials needed to use the key.
func (wrapper UserWrapper) CreateAccessKeyPair(userName string) (*types.AccessKey, error) {
	var key *types.AccessKey
	result, err := wrapper.IamClient.CreateAccessKey(context.TODO(), &iam.CreateAccessKeyInput{
		UserName: aws.String(userName)})
	if err != nil {
		log.Printf("Couldn't create access key pair for user %v. Here's why: %v\n", userName, err)
	} else {
		key = result.AccessKey
	}
	return key, err
}

    public static String createIAMAccessKey(IamClient iam,String user) {

        try {
            CreateAccessKeyRequest request = CreateAccessKeyRequest.builder()
                .userName(user)
                .build();

            CreateAccessKeyResponse response = iam.createAccessKey(request);
            return response.accessKey().accessKeyId();

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

Create the client.

import { IAMClient } from "@aws-sdk/client-iam";
// Set the AWS Region.
const REGION = "REGION"; // For example, "us-east-1".
// Create an IAM service client object.
const iamClient = new IAMClient({ region: REGION });
export { iamClient };

Create the access key.

// Import required AWS SDK clients and commands for Node.js.
import { iamClient } from "./libs/iamClient.js";
import { CreateAccessKeyCommand } from "@aws-sdk/client-iam";

// Set the parameters.
export const params = {UserName: "IAM_USER_NAME"}; //IAM_USER_NAME

export const run = async () => {
  try {
    const data = await iamClient.send(new CreateAccessKeyCommand(params));
    console.log("Success", data);
    return data;
  } catch (err) {
    console.log("Error", err);
  }
};
run();

// 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'});

iam.createAccessKey({UserName: 'IAM_USER_NAME'}, function(err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data.AccessKey);
  }
});

suspend fun createIAMAccessKey(user: String?): String {

    val request = CreateAccessKeyRequest {
        userName = user
    }

    IamClient { region = "AWS_GLOBAL" }.use { iamClient ->
        val response = iamClient.createAccessKey(request)
        return response.accessKey?.accessKeyId.toString()
    }
}

def create_key(user_name):
    """
    Creates an access key for the specified user. Each user can have a
    maximum of two keys.

    :param user_name: The name of the user.
    :return: The created access key.
    """
    try:
        key_pair = iam.User(user_name).create_access_key_pair()
        logger.info(
            "Created access key pair for %s. Key ID is %s.",
            key_pair.user_name, key_pair.id)
    except ClientError:
        logger.exception("Couldn't create access key pair for %s.", user_name)
        raise
    else:
        return key_pair

  # Creates an access key for a user.
  #
  # @param user [Aws::IAM::User] The user that owns the key.
  # @return [Aws::IAM::AccessKeyPair] The newly created access key.
  def create_access_key_pair(user)
    user_key = user.create_access_key_pair
    puts("Created access key pair for user.")
  rescue Aws::Errors::ServiceError => e
    puts("Couldn't create access keys for user #{user.name}.")
    puts("\t#{e.code}: #{e.message}")
    raise
  else
    user_key
  end

pub async fn create_access_key(client: &iamClient, user_name: &str) -> Result<AccessKey, iamError> {
    let mut tries: i32 = 0;
    let max_tries: i32 = 10;

    let response: Result<CreateAccessKeyOutput, SdkError<CreateAccessKeyError>> = loop {
        match client.create_access_key().user_name(user_name).send().await {
            Ok(inner_response) => {
                break Ok(inner_response);
            }
            Err(e) => {
                tries += 1;
                if tries > max_tries {
                    break Err(e);
                }
                sleep(Duration::from_secs(2)).await;
            }
        }
    };

    Ok(response.unwrap().access_key.unwrap())
}

    public func createAccessKey(userName: String) async throws -> IAMClientTypes.AccessKey {
        let input = CreateAccessKeyInput(
            userName: userName
        )
        do {
            let output = try await iamClient.createAccessKey(input: input)
            guard let accessKey = output.accessKey else {
                throw ServiceHandlerError.keyError
            }
            return accessKey
        } catch {
            throw error
        }
    }