Get the properties of an Amazon SNS topic using an Amazon SDK

    using System;
    using System.Collections.Generic;
    using System.Threading.Tasks;
    using Amazon.SimpleNotificationService;
    using Amazon.SimpleNotificationService.Model;

    /// <summary>
    /// This example shows how to retrieve the attributes of an Amazon Simple
    /// Notification Service (Amazon SNS) topic. The example was written using
    /// the AWS SDK for .NET 3.7 and .NET Core 5.0.
    /// </summary>
    public class GetTopicAttributes
    {
        public static async Task Main()
        {
            string topicArn = "arn:aws:sns:us-west-2:000000000000:ExampleSNSTopic";
            IAmazonSimpleNotificationService client = new AmazonSimpleNotificationServiceClient();

            var attributes = await GetTopicAttributesAsync(client, topicArn);
            DisplayTopicAttributes(attributes);
        }

        /// <summary>
        /// Given the ARN of the Amazon SNS topic, this method retrieves the topic
        /// attributes.
        /// </summary>
        /// <param name="client">The initialized Amazon SNS client object used
        /// to retrieve the attributes for the Amazon SNS topic.</param>
        /// <param name="topicArn">The ARN of the topic for which to retrieve
        /// the attributes.</param>
        /// <returns>A Dictionary of topic attributes.</returns>
        public static async Task<Dictionary<string, string>> GetTopicAttributesAsync(
            IAmazonSimpleNotificationService client,
            string topicArn)
        {
            var response = await client.GetTopicAttributesAsync(topicArn);

            return response.Attributes;
        }

        /// <summary>
        /// This method displays the attributes for an Amazon SNS topic.
        /// </summary>
        /// <param name="topicAttributes">A Dictionary containing the
        /// attributes for an Amazon SNS topic.</param>
        public static void DisplayTopicAttributes(Dictionary<string, string> topicAttributes)
        {
            foreach (KeyValuePair<string, string> entry in topicAttributes)
            {
                Console.WriteLine($"{entry.Key}: {entry.Value}\n");
            }
        }
    }

  Aws::SDKOptions options;
  Aws::InitAPI(options);
  {
    Aws::SNS::SNSClient sns;
    Aws::String topic_arn = argv[1];

    Aws::SNS::Model::GetTopicAttributesRequest gta_req;
    gta_req.SetTopicArn(topic_arn);

    auto gta_out = sns.GetTopicAttributes(gta_req);

    if (gta_out.IsSuccess())
    {
      std::cout << "Topic Attributes:" << std::endl;
      for (auto const &attribute : gta_out.GetResult().GetAttributes())
      {
        std::cout << "  * " << attribute.first << " : " << attribute.second << std::endl;
      }
    }
    else
    {
      std::cout << "Error while getting Topic attributes " << gta_out.GetError().GetMessage()
        << std::endl;
    }
  }

  Aws::ShutdownAPI(options);

    public static void getSNSTopicAttributes(SnsClient snsClient, String topicArn ) {

        try {
            GetTopicAttributesRequest request = GetTopicAttributesRequest.builder()
                .topicArn(topicArn)
                .build();

            GetTopicAttributesResponse result = snsClient.getTopicAttributes(request);
            System.out.println("\n\nStatus is " + result.sdkHttpResponse().statusCode() + "\n\nAttributes: \n\n" + result.attributes());

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

Create the client in a separate module and export it.

import  { SNSClient } from "@aws-sdk/client-sns";
// Set the AWS Region.
const REGION = "REGION"; //e.g. "us-east-1"
// Create SNS service object.
const snsClient = new SNSClient({ region: REGION });
export  { snsClient };

Import the SDK and client modules and call the API.

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

// Set the parameters
const params = { TopicArn: "TOPIC_ARN" }; // TOPIC_ARN

const run = async () => {
  try {
    const data = await snsClient.send(new GetTopicAttributesCommand(params));
    console.log("Success.",  data);
    return data; // For unit tests.
  } catch (err) {
    console.log("Error", err.stack);
  }
};
run();

Import the SDK and client modules and call the API.

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


// Create promise and SNS service object
var getTopicAttribsPromise = new AWS.SNS({apiVersion: '2010-03-31'}).getTopicAttributes({TopicArn: 'TOPIC_ARN'}).promise();

// Handle promise's fulfilled/rejected states
getTopicAttribsPromise.then(
  function(data) {
    console.log(data);
  }).catch(
    function(err) {
    console.error(err, err.stack);
  });

suspend fun getSNSTopicAttributes(topicArnVal: String) {

    val request = GetTopicAttributesRequest {
        topicArn = topicArnVal
    }

    SnsClient { region = "us-east-1" }.use { snsClient ->
        val result = snsClient.getTopicAttributes(request)
        println("${result.attributes}")
    }
}

$SnSclient = new SnsClient([
    'profile' => 'default',
    'region' => 'us-east-1',
    'version' => '2010-03-31'
]);

$topic = 'arn:aws:sns:us-east-1:111122223333:MyTopic';

try {
    $result = $SnSclient->getTopicAttributes([
        'TopicArn' => $topic,
    ]);
    var_dump($result);
} catch (AwsException $e) {
    // output error message if fails
    error_log($e->getMessage());
} 

    TRY.
        oo_result = lo_sns->gettopicattributes( iv_topicarn = iv_topic_arn ). " oo_result is returned for testing purposes. "
        DATA(lt_attributes) = oo_result->get_attributes( ).
        MESSAGE 'Retrieved attributes/properties of a topic.' TYPE 'I'.
      CATCH /aws1/cx_snsnotfoundexception.
        MESSAGE 'Topic does not exist.' TYPE 'E'.
    ENDTRY.