List Amazon SNS topics using an Amazon SDK

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

    /// <summary>
    /// Lists the Amazon Simple Notification Service (Amazon SNS)
    /// topics for the current account.
    /// </summary>
    public class ListSNSTopics
    {
        public static async Task Main()
        {
            IAmazonSimpleNotificationService client = new AmazonSimpleNotificationServiceClient();

            await GetTopicListAsync(client);
        }

        /// <summary>
        /// Retrieves the list of Amazon SNS topics in groups of up to 100
        /// topics.
        /// </summary>
        /// <param name="client">The initialized Amazon SNS client object used
        /// to retrieve the list of topics.</param>
        public static async Task GetTopicListAsync(IAmazonSimpleNotificationService client)
        {
            // If there are more than 100 Amazon SNS topics, the call to
            // ListTopicsAsync will return a value to pass to the
            // method to retrieve the next 100 (or less) topics.
            string nextToken = string.Empty;

            do
            {
                var response = await client.ListTopicsAsync(nextToken);
                DisplayTopicsList(response.Topics);
                nextToken = response.NextToken;
            }
            while (!string.IsNullOrEmpty(nextToken));
        }

        /// <summary>
        /// Displays the list of Amazon SNS Topic ARNs.
        /// </summary>
        /// <param name="topicList">The list of Topic ARNs.</param>
        public static void DisplayTopicsList(List<Topic> topicList)
        {
            foreach (var topic in topicList)
            {
                Console.WriteLine($"{topic.TopicArn}");
            }
        }
    }

//! Retrieve a list of Amazon Simple Notification Service (Amazon SNS) topics.
/*!
  \param clientConfiguration: AWS client configuration.
  \return bool: Function succeeded.
 */
bool
AwsDoc::SNS::listTopics(const Aws::Client::ClientConfiguration &clientConfiguration) {
    Aws::SNS::SNSClient snsClient(clientConfiguration);

    Aws::String nextToken; // Next token is used to handle a paginated response.
    bool result = true;
    do {
        Aws::SNS::Model::ListTopicsRequest request;

        if (!nextToken.empty()) {
            request.SetNextToken(nextToken);
        }

        const Aws::SNS::Model::ListTopicsOutcome outcome = snsClient.ListTopics(
                request);

        if (outcome.IsSuccess()) {
            std::cout << "Topics list:" << std::endl;
            for (auto const &topic: outcome.GetResult().GetTopics()) {
                std::cout << "  * " << topic.GetTopicArn() << std::endl;
            }
        }
        else {
            std::cerr << "Error listing topics " << outcome.GetError().GetMessage() <<
                      std::endl;
            result = false;
            break;
        }

        nextToken = outcome.GetResult().GetNextToken();
    } while (!nextToken.empty());

    return result;
}

package main

import (
	"context"
	"fmt"

	"github.com/aws/aws-sdk-go-v2/config"
	"github.com/aws/aws-sdk-go-v2/service/sns"
)

// SNSListTopicsAPI defines the interface for the ListTopics function.
// We use this interface to test the function using a mocked service.
type SNSListTopicsAPI interface {
	ListTopics(ctx context.Context,
		params *sns.ListTopicsInput,
		optFns ...func(*sns.Options)) (*sns.ListTopicsOutput, error)
}

// GetTopics retrieves information about the Amazon Simple Notification Service (Amazon SNS) topics
// Inputs:
//     c is the context of the method call, which includes the Region
//     api is the interface that defines the method call
//     input defines the input arguments to the service call.
// Output:
//     If success, a ListTopicsOutput object containing the result of the service call and nil
//     Otherwise, nil and an error from the call to ListTopics
func GetTopics(c context.Context, api SNSListTopicsAPI, input *sns.ListTopicsInput) (*sns.ListTopicsOutput, error) {
	return api.ListTopics(c, input)
}

func main() {
	cfg, err := config.LoadDefaultConfig(context.TODO())
	if err != nil {
		panic("configuration error, " + err.Error())
	}

	client := sns.NewFromConfig(cfg)

	input := &sns.ListTopicsInput{}

	results, err := GetTopics(context.TODO(), client, input)
	if err != nil {
		fmt.Println("Got an error retrieving information about the SNS topics:")
		fmt.Println(err)
		return
	}

	for _, t := range results.Topics {
		fmt.Println(*t.TopicArn)
	}
}

    public static void listSNSTopics(SnsClient snsClient) {

        try {
            ListTopicsRequest request = ListTopicsRequest.builder()
                   .build();

            ListTopicsResponse result = snsClient.listTopics(request);
            System.out.println("Status was " + result.sdkHttpResponse().statusCode() + "\n\nTopics\n\n" + result.topics());

        } 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";

// The AWS Region can be provided here using the `region` property. If you leave it blank
// the SDK will default to the region set in your AWS config.
export const snsClient = new SNSClient({});

Import the SDK and client modules and call the API.

import { ListTopicsCommand } from "@aws-sdk/client-sns";
import { snsClient } from "../libs/snsClient.js";

export const listTopics = async () => {
  const response = await snsClient.send(new ListTopicsCommand({}));
  console.log(response);
  // {
  //   '$metadata': {
  //     httpStatusCode: 200,
  //     requestId: '936bc5ad-83ca-53c2-b0b7-9891167b909e',
  //     extendedRequestId: undefined,
  //     cfId: undefined,
  //     attempts: 1,
  //     totalRetryDelay: 0
  //   },
  //   Topics: [ { TopicArn: 'arn:aws:sns:us-east-1:xxxxxxxxxxxx:mytopic' } ]
  // }
  return response;
};

suspend fun listSNSTopics() {

    SnsClient { region = "us-east-1" }.use { snsClient ->
        val response = snsClient.listTopics(ListTopicsRequest { })
        response.topics?.forEach { topic ->
            println("The topic ARN is ${topic.topicArn}")
        }
    }
}

require 'vendor/autoload.php';

use Aws\Sns\SnsClient; 
use Aws\Exception\AwsException;

/**
 * Returns a list of the requester's topics from your AWS SNS account in the region specified.
 *
 * This code expects that you have AWS credentials set up per:
 * https://docs.aws.amazon.com/sdk-for-php/v3/developer-guide/guide_credentials.html
 */
 
$SnSclient = new SnsClient([
    'profile' => 'default',
    'region' => 'us-east-1',
    'version' => '2010-03-31'
]);

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

class SnsWrapper:
    """Encapsulates Amazon SNS topic and subscription functions."""
    def __init__(self, sns_resource):
        """
        :param sns_resource: A Boto3 Amazon SNS resource.
        """
        self.sns_resource = sns_resource

    def list_topics(self):
        """
        Lists topics for the current account.

        :return: An iterator that yields the topics.
        """
        try:
            topics_iter = self.sns_resource.topics.all()
            logger.info("Got topics.")
        except ClientError:
            logger.exception("Couldn't get topics.")
            raise
        else:
            return topics_iter

require "aws-sdk-sns"  # v2: require 'aws-sdk'

def list_topics?(sns_client)
  sns_client.topics.each do |topic|
    puts topic.arn
rescue StandardError => e
  puts "Error while listing the topics: #{e.message}"
  end
end

def run_me

  region = "REGION"
  sns_client = Aws::SNS::Resource.new(region: region)

  puts "Listing the topics."

  if list_topics?(sns_client)
  else
    puts "The bucket was not created. Stopping program."
    exit 1
  end
end
run_me if $PROGRAM_NAME == __FILE__

async fn show_topics(client: &Client) -> Result<(), Error> {
    let resp = client.list_topics().send().await?;

    println!("Topic ARNs:");

    for topic in resp.topics().unwrap_or_default() {
        println!("{}", topic.topic_arn().unwrap_or_default());
    }

    Ok(())
}

    TRY.
        oo_result = lo_sns->listtopics( ).            " oo_result is returned for testing purposes. "
        DATA(lt_topics) = oo_result->get_topics( ).
        MESSAGE 'Retrieved list of topics.' TYPE 'I'.
      CATCH /aws1/cx_rt_generic.
        MESSAGE 'Unable to list topics.' TYPE 'E'.
    ENDTRY.