List Amazon EC2 security key pairs using an Amazon SDK

    /// <summary>
    /// Get information about an Amazon EC2 key pair.
    /// </summary>
    /// <param name="keyPairName">The name of the key pair.</param>
    /// <returns>A list of key pair information.</returns>
    public async Task<List<KeyPairInfo>> DescribeKeyPairs(string keyPairName)
    {
        var request = new DescribeKeyPairsRequest();
        if (!string.IsNullOrEmpty(keyPairName))
        {
            request = new DescribeKeyPairsRequest
            {
                KeyNames = new List<string> { keyPairName }
            };
        }
        var response = await _amazonEC2.DescribeKeyPairsAsync(request);
        return response.KeyPairs.ToList();
    }

    Aws::EC2::EC2Client ec2Client(clientConfiguration);
    Aws::EC2::Model::DescribeKeyPairsRequest request;

    auto outcome = ec2Client.DescribeKeyPairs(request);
    if (outcome.IsSuccess()) {
        std::cout << std::left <<
                  std::setw(32) << "Name" <<
                  std::setw(64) << "Fingerprint" << std::endl;

        const std::vector<Aws::EC2::Model::KeyPairInfo> &key_pairs =
                outcome.GetResult().GetKeyPairs();
        for (const auto &key_pair: key_pairs) {
            std::cout << std::left <<
                      std::setw(32) << key_pair.GetKeyName() <<
                      std::setw(64) << key_pair.GetKeyFingerprint() << std::endl;
        }
    }
    else {
        std::cerr << "Failed to describe key pairs:" <<
                  outcome.GetError().GetMessage() << std::endl;
    }

    public static void describeEC2Keys( Ec2Client ec2){

        try {
            DescribeKeyPairsResponse response = ec2.describeKeyPairs();
            response.keyPairs().forEach(keyPair -> System.out.printf(
                "Found key pair with name %s " +
                   "and fingerprint %s",
                    keyPair.keyName(),
                    keyPair.keyFingerprint())
            );

        } catch (Ec2Exception e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
         }
    }

import { DescribeKeyPairsCommand } from "@aws-sdk/client-ec2";

import { client } from "../libs/client.js";

export const main = async () => {
  const command = new DescribeKeyPairsCommand({});

  try {
    const { KeyPairs } = await client.send(command);
    const keyPairList = KeyPairs.map(
      (kp) => ` • ${kp.KeyPairId}: ${kp.KeyName}`
    ).join("\n");
    console.log("The following key pairs were found in your account:");
    console.log(keyPairList);
  } catch (err) {
    console.error(err);
  }
};

suspend fun describeEC2Keys() {

    Ec2Client { region = "us-west-2" }.use { ec2 ->
        val response = ec2.describeKeyPairs(DescribeKeyPairsRequest {})
        response.keyPairs?.forEach { keyPair ->
            println("Found key pair with name ${keyPair.keyName} and fingerprint ${ keyPair.keyFingerprint}")
        }
    }
}

class KeyPairWrapper:
    """Encapsulates Amazon Elastic Compute Cloud (Amazon EC2) key pair actions."""
    def __init__(self, ec2_resource, key_file_dir, key_pair=None):
        """
        :param ec2_resource: A Boto3 Amazon EC2 resource. This high-level resource
                             is used to create additional high-level objects
                             that wrap low-level Amazon EC2 service actions.
        :param key_file_dir: The folder where the private key information is stored.
                             This should be a secure folder.
        :param key_pair: A Boto3 KeyPair object. This is a high-level object that
                         wraps key pair actions.
        """
        self.ec2_resource = ec2_resource
        self.key_pair = key_pair
        self.key_file_path = None
        self.key_file_dir = key_file_dir

    @classmethod
    def from_resource(cls):
        ec2_resource = boto3.resource('ec2')
        return cls(ec2_resource, tempfile.TemporaryDirectory())

    def list(self, limit):
        """
        Displays a list of key pairs for the current account.

        :param limit: The maximum number of key pairs to list.
        """
        try:
            for kp in self.ec2_resource.key_pairs.limit(limit):
                print(f"Found {kp.key_type} key {kp.name} with fingerprint:")
                print(f"\t{kp.key_fingerprint}")
        except ClientError as err:
            logger.error(
                "Couldn't list key pairs. Here's why: %s: %s",
                err.response['Error']['Code'], err.response['Error']['Message'])
            raise

    TRY.
        oo_result = lo_ec2->describekeypairs( ) .                        " oo_result is returned for testing purposes. "
        DATA(lt_key_pairs) = oo_result->get_keypairs( ).
        MESSAGE 'Retrieved information about key pairs.' TYPE 'I'.
      CATCH /aws1/cx_rt_service_generic INTO DATA(lo_exception).
        DATA(lv_error) = |"{ lo_exception->av_err_code }" - { lo_exception->av_err_msg }|.
        MESSAGE lv_error TYPE 'E'.
    ENDTRY.