使用 Amazon 软件开发工具包列出 Amazon SNS 主题 - Amazon Simple Notification Service
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使用 Amazon 软件开发工具包列出 Amazon SNS 主题

以下代码示例展示如何列出 Amazon SNS 主题。

.NET
Amazon SDK for .NET

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}"); } }
  • GitHub 中查找说明和更多代码。

  • 有关 API 详细信息,请参阅 Amazon SDK for .NET API 参考中的 ListTopics

C++
SDK for C++

Aws::SDKOptions options; Aws::InitAPI(options); { Aws::SNS::SNSClient sns; Aws::SNS::Model::ListTopicsRequest lt_req; auto lt_out = sns.ListTopics(lt_req); if (lt_out.IsSuccess()) { std::cout << "Topics list:" << std::endl; for (auto const &topic : lt_out.GetResult().GetTopics()) { std::cout << " * " << topic.GetTopicArn() << std::endl; } } else { std::cout << "Error listing topics " << lt_out.GetError().GetMessage() << std::endl; } } Aws::ShutdownAPI(options);
  • GitHub 中查找说明和更多代码。

  • 有关 API 详细信息,请参阅 Amazon SDK for C++ API 参考中的 ListTopics

Go
SDK for Go V2
  • GitHub 中查找说明和更多代码。

  • 有关 API 详细信息,请参阅 Amazon SDK for Go API 参考中的 ListTopics

Java
SDK for Java 2.x

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); } }
  • GitHub 中查找说明和更多代码。

  • 有关 API 详细信息,请参阅 Amazon SDK for Java 2.x API 参考中的 ListTopics

JavaScript
SDK for JavaScript V3

在单独的模块中创建客户端并将其导出。

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 };

导入开发工具包和客户端模块,然后调用 API。

// Import required AWS SDK clients and commands for Node.js import {ListTopicsCommand } from "@aws-sdk/client-sns"; import {snsClient } from "./libs/snsClient.js"; const run = async () => { try { const data = await snsClient.send(new ListTopicsCommand({})); console.log("Success.", data); return data; // For unit tests. } catch (err) { console.log("Error", err.stack); } }; run();
PHP
SDK for PHP

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()); }
  • GitHub 中查找说明和更多代码。

  • 有关 API 详细信息,请参阅 Amazon SDK for PHP API 参考中的 ListTopics

Python
SDK for Python (Boto3)

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
  • GitHub 中查找说明和更多代码。

  • 有关 API 详细信息,请参阅 Amazon SDK for Python (Boto3) API 参考中的 ListTopics

Ruby
SDK for Ruby

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 = 'eu-west-1' 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__
Rust
SDK for Rust
注意

本文档适用于预览版中的软件开发工具包。软件开发工具包可能随时发生变化,不应在生产环境中使用。

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.as_deref().unwrap_or_default()); } Ok(()) }
  • GitHub 中查找说明和更多代码。

  • 有关 API 详细信息,请参阅 Amazon SDK for Rust API 参考中的 ListTopics

有关 Amazon 开发工具包开发人员指南和代码示例的完整列表,包括帮助入门和有关早期版本的信息,请参阅 将 Amazon SNS 与 Amazon 开发工具包结合使用