Exemplos de código para Amazon SQS usando SDKs da AWS - Exemplos de código do AWS SDK

Há mais exemplos do AWS SDK disponíveis no repositório do GitHub Documento de Exemplos do AWS SDK.

Exemplos de código para Amazon SQS usando SDKs da AWS

Os exemplos de código a seguir mostram como usar o Amazon Simple Queue Service com um kit de desenvolvimento de software (SDK) da AWS.

Ações são trechos de código de programas maiores e devem ser executadas em contexto. Embora as ações mostrem como chamar perfis de serviço individuais, você pode ver as ações no contexto em seus cenários relacionados.

Cenários são exemplos de código que mostram como realizar tarefas específicas chamando várias funções dentro de um serviço ou combinadas com outros Serviços da AWS.

Mais atributos

Conceitos básicos

Os exemplos de código a seguir mostram como começar a usar o Amazon SQS.

.NET
SDK para .NET
nota

Há mais no GitHub. Encontre o exemplo completo e veja como configurar e executar no AWS Code Examples Repository. 


using Amazon.SQS;
using Amazon.SQS.Model;

namespace SQSActions;

public static class HelloSQS
{
    static async Task Main(string[] args)
    {
        var sqsClient = new AmazonSQSClient();

        Console.WriteLine($"Hello Amazon SQS! Following are some of your queues:");
        Console.WriteLine();

        // You can use await and any of the async methods to get a response.
        // Let's get the first five queues.
        var response = await sqsClient.ListQueuesAsync(
            new ListQueuesRequest()
            {
                MaxResults = 5
            });

        foreach (var queue in response.QueueUrls)
        {
            Console.WriteLine($"\tQueue Url: {queue}");
            Console.WriteLine();
        }
    }
}

  • Consulte detalhes da API em ListQueues na Referência da API AWS SDK para .NET.

C++
SDK para C++
nota

Há mais no GitHub. Encontre o exemplo completo e veja como configurar e executar no AWS Code Examples Repository.

Código para o arquivo CMakeLists.txt do CMake.

# Set the minimum required version of CMake for this project.
cmake_minimum_required(VERSION 3.13)

# Set the AWS service components used by this project.
set(SERVICE_COMPONENTS sqs)

# Set this project's name.
project("hello_sqs")

# Set the C++ standard to use to build this target.
# At least C++ 11 is required for the AWS SDK for C++.
set(CMAKE_CXX_STANDARD 11)

# Use the MSVC variable to determine if this is a Windows build.
set(WINDOWS_BUILD ${MSVC})

if (WINDOWS_BUILD) # Set the location where CMake can find the installed libraries for the AWS SDK.
    string(REPLACE ";" "/aws-cpp-sdk-all;" SYSTEM_MODULE_PATH "${CMAKE_SYSTEM_PREFIX_PATH}/aws-cpp-sdk-all")
    list(APPEND CMAKE_PREFIX_PATH ${SYSTEM_MODULE_PATH})
endif ()

# Find the AWS SDK for C++ package.
find_package(AWSSDK REQUIRED COMPONENTS ${SERVICE_COMPONENTS})

if(WINDOWS_BUILD AND AWSSDK_INSTALL_AS_SHARED_LIBS)
    # Copy relevant AWS SDK for C++ libraries into the current binary directory for running and debugging.

    # set(BIN_SUB_DIR "/Debug") # If you are building from the command line you may need to uncomment this
    # and set the proper subdirectory to the executables' location.

    AWSSDK_CPY_DYN_LIBS(SERVICE_COMPONENTS "" ${CMAKE_CURRENT_BINARY_DIR}${BIN_SUB_DIR})
endif()

add_executable(${PROJECT_NAME}
        hello_sqs.cpp)

target_link_libraries(${PROJECT_NAME}
        ${AWSSDK_LINK_LIBRARIES})

Código para o arquivo de origem hello_sqs.cpp.

#include <aws/core/Aws.h>
#include <aws/sqs/SQSClient.h>
#include <aws/sqs/model/ListQueuesRequest.h>
#include <iostream>

/*
 *  A "Hello SQS" starter application that initializes an Amazon Simple Queue Service
 *  (Amazon SQS) client and lists the SQS queues in the current account.
 *
 *  main function
 *
 *  Usage: 'hello_sqs'
 *
 */

int main(int argc, char **argv) {
    Aws::SDKOptions options;
    // Optionally change the log level for debugging.
//   options.loggingOptions.logLevel = Utils::Logging::LogLevel::Debug;
    Aws::InitAPI(options); // Should only be called once.
    {
        Aws::Client::ClientConfiguration clientConfig;
        // Optional: Set to the AWS Region (overrides config file).
        // clientConfig.region = "us-east-1";

        Aws::SQS::SQSClient sqsClient(clientConfig);

        Aws::Vector<Aws::String> allQueueUrls;
        Aws::String nextToken; // Next token is used to handle a paginated response.
        do {
            Aws::SQS::Model::ListQueuesRequest request;

            Aws::SQS::Model::ListQueuesOutcome outcome = sqsClient.ListQueues(request);

            if (outcome.IsSuccess()) {
                const Aws::Vector<Aws::String> &pageOfQueueUrls = outcome.GetResult().GetQueueUrls();
                if (!pageOfQueueUrls.empty()) {
                    allQueueUrls.insert(allQueueUrls.cend(), pageOfQueueUrls.cbegin(),
                                        pageOfQueueUrls.cend());
                }
            }
            else {
                std::cerr << "Error with SQS::ListQueues. "
                          << outcome.GetError().GetMessage()
                          << std::endl;
                break;
            }
            nextToken = outcome.GetResult().GetNextToken();
        } while (!nextToken.empty());


        std::cout << "Hello Amazon SQS! You have " << allQueueUrls.size() << " queue"
                  << (allQueueUrls.size() == 1 ? "" : "s") << " in your account."
                  << std::endl;

        if (!allQueueUrls.empty()) {
            std::cout << "Here are your queue URLs." << std::endl;
            for (const Aws::String &queueUrl: allQueueUrls) {
                std::cout << "  * " << queueUrl << std::endl;
            }
        }
    }

    Aws::ShutdownAPI(options); // Should only be called once.
    return 0;
}

  • Consulte detalhes da API em ListQueues na Referência da API AWS SDK para C++.

Go
SDK para Go V2
nota

Há mais no GitHub. Encontre o exemplo completo e veja como configurar e executar no AWS Code Examples Repository. 


package main

import (
	"context"
	"fmt"
	"log"

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

// main uses the AWS SDK for Go V2 to create an Amazon Simple Queue Service
// (Amazon SQS) client and list the queues in your account.
// This example uses the default settings specified in your shared credentials
// and config files.
func main() {
	ctx := context.Background()
	sdkConfig, err := config.LoadDefaultConfig(ctx)
	if err != nil {
		fmt.Println("Couldn't load default configuration. Have you set up your AWS account?")
		fmt.Println(err)
		return
	}
	sqsClient := sqs.NewFromConfig(sdkConfig)
	fmt.Println("Let's list the queues for your account.")
	var queueUrls []string
	paginator := sqs.NewListQueuesPaginator(sqsClient, &sqs.ListQueuesInput{})
	for paginator.HasMorePages() {
		output, err := paginator.NextPage(ctx)
		if err != nil {
			log.Printf("Couldn't get queues. Here's why: %v\n", err)
			break
		} else {
			queueUrls = append(queueUrls, output.QueueUrls...)
		}
	}
	if len(queueUrls) == 0 {
		fmt.Println("You don't have any queues!")
	} else {
		for _, queueUrl := range queueUrls {
			fmt.Printf("\t%v\n", queueUrl)
		}
	}
}

  • Consulte detalhes da API em ListQueues na Referência da API AWS SDK para Go.

Java
SDK para Java 2.x
nota

Há mais no GitHub. Encontre o exemplo completo e veja como configurar e executar no AWS Code Examples Repository. 

import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.sqs.SqsClient;
import software.amazon.awssdk.services.sqs.model.SqsException;
import software.amazon.awssdk.services.sqs.paginators.ListQueuesIterable;

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 */
public class HelloSQS {
    public static void main(String[] args) {
        SqsClient sqsClient = SqsClient.builder()
                .region(Region.US_WEST_2)
                .build();

        listQueues(sqsClient);
        sqsClient.close();
    }

    public static void listQueues(SqsClient sqsClient) {
        try {
            ListQueuesIterable listQueues = sqsClient.listQueuesPaginator();
            listQueues.stream()
                    .flatMap(r -> r.queueUrls().stream())
                    .forEach(content -> System.out.println(" Queue URL: " + content.toLowerCase()));

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

  • Consulte detalhes da API em ListQueues na Referência da API AWS SDK for Java 2.x.

JavaScript
SDK para JavaScript (v3)
nota

Há mais no GitHub. Encontre o exemplo completo e veja como configurar e executar no AWS Code Examples Repository.

Inicializar um cliente Amazon SQS e listar as filas.

import { SQSClient, paginateListQueues } from "@aws-sdk/client-sqs";

export const helloSqs = async () => {
  // The configuration object (`{}`) is required. If the region and credentials
  // are omitted, the SDK uses your local configuration if it exists.
  const client = new SQSClient({});

  // You can also use `ListQueuesCommand`, but to use that command you must
  // handle the pagination yourself. You can do that by sending the `ListQueuesCommand`
  // with the `NextToken` parameter from the previous request.
  const paginatedQueues = paginateListQueues({ client }, {});
  const queues = [];

  for await (const page of paginatedQueues) {
    if (page.QueueUrls?.length) {
      queues.push(...page.QueueUrls);
    }
  }

  const suffix = queues.length === 1 ? "" : "s";

  console.log(
    `Hello, Amazon SQS! You have ${queues.length} queue${suffix} in your account.`,
  );
  console.log(queues.map((t) => `  * ${t}`).join("\n"));
};

  • Consulte detalhes da API em ListQueues na Referência da API AWS SDK para JavaScript.

Kotlin
SDK para Kotlin
nota

Há mais no GitHub. Encontre o exemplo completo e veja como configurar e executar no AWS Code Examples Repository. 

package com.kotlin.sqs

import aws.sdk.kotlin.services.sqs.SqsClient
import aws.sdk.kotlin.services.sqs.paginators.listQueuesPaginated
import kotlinx.coroutines.flow.transform

suspend fun main() {
    listTopicsPag()
}

suspend fun listTopicsPag() {
    SqsClient.fromEnvironment { region = "us-east-1" }.use { sqsClient ->
        sqsClient
            .listQueuesPaginated { }
            .transform { it.queueUrls?.forEach { queue -> emit(queue) } }
            .collect { queue ->
                println("The Queue URL is $queue")
            }
    }
}

  • Consulte detalhes da API em ListQueues na Referência da API AWS SDK para Kotlin.

Swift
SDK para Swift
nota

Há mais no GitHub. Encontre o exemplo completo e veja como configurar e executar no AWS Code Examples Repository.

O arquivo Package.swift.

import PackageDescription

let package = Package(
    name: "sqs-basics",
    // Let Xcode know the minimum Apple platforms supported.
    platforms: [
        .macOS(.v13),
        .iOS(.v15)
    ],
    dependencies: [
        // Dependencies declare other packages that this package depends on.
        .package(
            url: "https://github.com/awslabs/aws-sdk-swift",
            from: "1.0.0"),
        .package(
            url: "https://github.com/apple/swift-argument-parser.git",
            branch: "main"
        )
    ],
    targets: [
        // Targets are the basic building blocks of a package, defining a module or a test suite.
        // Targets can depend on other targets in this package and products
        // from dependencies.
        .executableTarget(
            name: "sqs-basics",
            dependencies: [
                .product(name: "AWSSQS", package: "aws-sdk-swift"),
                .product(name: "ArgumentParser", package: "swift-argument-parser")
            ],
            path: "Sources")

    ]
)

O código-fonte do Swift, entry.swift.

import ArgumentParser
import AWSClientRuntime
import AWSSQS
import Foundation

struct ExampleCommand: ParsableCommand {
    @Option(help: "Name of the Amazon Region to use (default: us-east-1)")
    var region = "us-east-1"

    static var configuration = CommandConfiguration(
        commandName: "sqs-basics",
        abstract: """
        This example shows how to list all of your available Amazon SQS queues.
        """,
        discussion: """
        """
    )
    
    /// Called by ``main()`` to run the bulk of the example.
    func runAsync() async throws {
        let config = try await SQSClient.SQSClientConfiguration(region: region)
        let sqsClient = SQSClient(config: config)

        var queues: [String] = []
        let outputPages = sqsClient.listQueuesPaginated(
            input: ListQueuesInput()
        )

        // Each time a page of results arrives, process its contents.

        for try await output in outputPages {
            guard let urls = output.queueUrls else {
                print("No queues found.")
                return
            }

            // Iterate over the queue URLs listed on this page, adding them
            // to the `queues` array.

            for queueUrl in urls {
                queues.append(queueUrl)
            }
        }

        print("You have \(queues.count) queues:")
        for queue in queues {
            print("   \(queue)")
        }
    }
}

/// The program's asynchronous entry point.
@main
struct Main {
    static func main() async {
        let args = Array(CommandLine.arguments.dropFirst())

        do {
            let command = try ExampleCommand.parse(args)
            try await command.runAsync()
        } catch {
            ExampleCommand.exit(withError: error)
        }
    }    
}

  • Consulte detalhes da API em ListQueues na Referência de API do AWS SDK para Swift.

Exemplos de código