SDK for C++를 사용한 Lambda 예제 - AWS SDK 코드 예제

AWS Doc SDK ExamplesWord AWS SDK 리포지토리에는 더 많은 GitHub 예제가 있습니다.

기계 번역으로 제공되는 번역입니다. 제공된 번역과 원본 영어의 내용이 상충하는 경우에는 영어 버전이 우선합니다.

SDK for C++를 사용한 Lambda 예제

다음 코드 예제에서는 Lambda와 AWS SDK for C++ 함께를 사용하여 작업을 수행하고 일반적인 시나리오를 구현하는 방법을 보여줍니다.

기본 사항은 서비스 내에서 필수 작업을 수행하는 방법을 보여주는 코드 예제입니다.

작업은 대규모 프로그램에서 발췌한 코드이며 컨텍스트에 맞춰 실행해야 합니다. 작업은 개별 서비스 함수를 직접적으로 호출하는 방법을 보여주며 관련 시나리오의 컨텍스트에 맞는 작업을 볼 수 있습니다.

시나리오는 동일한 서비스 내에서 또는 다른 AWS 서비스와 결합된 상태에서 여러 함수를 호출하여 특정 태스크를 수행하는 방법을 보여주는 코드 예제입니다.

각 예제에는 컨텍스트에서 코드를 설정하고 실행하는 방법에 대한 지침을 찾을 수 있는 전체 소스 코드에 대한 링크가 포함되어 있습니다.

시작

다음 코드 예제에서는 Lambda를 사용하여 시작하는 방법을 보여줍니다.

C++ SDK
참고

더 많은 on GitHub가 있습니다. AWS 코드 예시 리포지토리에서 전체 예시를 찾고 설정 및 실행하는 방법을 배워보세요.

CMakeLists.txt CMake 파일의 코드입니다.

# 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 lambda) # Set this project's name. project("hello_lambda") # 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(${PROJECT_NAME} hello_lambda.cpp) target_link_libraries(${PROJECT_NAME} ${AWSSDK_LINK_LIBRARIES})

hello_lambda.cpp 소스 파일의 코드입니다.

#include <aws/core/Aws.h> #include <aws/lambda/LambdaClient.h> #include <aws/lambda/model/ListFunctionsRequest.h> #include <iostream> /* * A "Hello Lambda" starter application which initializes an AWS Lambda (Lambda) client and lists the Lambda functions. * * main function * * Usage: 'hello_lambda' * */ 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. int result = 0; { Aws::Client::ClientConfiguration clientConfig; // Optional: Set to the AWS Region (overrides config file). // clientConfig.region = "us-east-1"; Aws::Lambda::LambdaClient lambdaClient(clientConfig); std::vector<Aws::String> functions; Aws::String marker; // Used for pagination. do { Aws::Lambda::Model::ListFunctionsRequest request; if (!marker.empty()) { request.SetMarker(marker); } Aws::Lambda::Model::ListFunctionsOutcome outcome = lambdaClient.ListFunctions( request); if (outcome.IsSuccess()) { const Aws::Lambda::Model::ListFunctionsResult &listFunctionsResult = outcome.GetResult(); std::cout << listFunctionsResult.GetFunctions().size() << " lambda functions were retrieved." << std::endl; for (const Aws::Lambda::Model::FunctionConfiguration &functionConfiguration: listFunctionsResult.GetFunctions()) { functions.push_back(functionConfiguration.GetFunctionName()); std::cout << functions.size() << " " << functionConfiguration.GetDescription() << std::endl; std::cout << " " << Aws::Lambda::Model::RuntimeMapper::GetNameForRuntime( functionConfiguration.GetRuntime()) << ": " << functionConfiguration.GetHandler() << std::endl; } marker = listFunctionsResult.GetNextMarker(); } else { std::cerr << "Error with Lambda::ListFunctions. " << outcome.GetError().GetMessage() << std::endl; result = 1; break; } } while (!marker.empty()); } Aws::ShutdownAPI(options); // Should only be called once. return result; }
  • API 세부 정보는 ListFunctions AWS SDK for C++ 참조의 API를 참조하세요.

기본 사항

다음 코드 예시는 다음과 같은 작업을 수행하는 방법을 보여줍니다.

  • IAM 역할 및 Lambda 함수를 생성한 다음 핸들러 코드를 업로드합니다.

  • 단일 파라미터로 함수를 간접적으로 간접 호출하고 결과를 가져옵니다.

  • 함수 코드를 업데이트하고 환경 변수로 구성합니다.

  • 새 파라미터로 함수를 간접적으로 간접 호출하고 결과를 가져옵니다. 반환된 실행 로그를 표시합니다.

  • 계정의 함수를 나열합니다.

자세한 내용은 콘솔로 Lambda 함수 생성을 참조하십시오.

C++ SDK
참고

더 많은 on GitHub가 있습니다. AWS 코드 예시 리포지토리에서 전체 예시를 찾고 설정 및 실행하는 방법을 배워보세요.

//! Get started with functions scenario. /*! \param clientConfig: AWS client configuration. \return bool: Successful completion. */ bool AwsDoc::Lambda::getStartedWithFunctionsScenario( const Aws::Client::ClientConfiguration &clientConfig) { Aws::Lambda::LambdaClient client(clientConfig); // 1. Create an AWS Identity and Access Management (IAM) role for Lambda function. Aws::String roleArn; if (!getIamRoleArn(roleArn, clientConfig)) { return false; } // 2. Create a Lambda function. int seconds = 0; do { Aws::Lambda::Model::CreateFunctionRequest request; request.SetFunctionName(LAMBDA_NAME); request.SetDescription(LAMBDA_DESCRIPTION); // Optional. #if USE_CPP_LAMBDA_FUNCTION request.SetRuntime(Aws::Lambda::Model::Runtime::provided_al2); request.SetTimeout(15); request.SetMemorySize(128); // Assume the AWS Lambda function was built in Docker with same architecture // as this code. #if defined(__x86_64__) request.SetArchitectures({Aws::Lambda::Model::Architecture::x86_64}); #elif defined(__aarch64__) request.SetArchitectures({Aws::Lambda::Model::Architecture::arm64}); #else #error "Unimplemented architecture" #endif // defined(architecture) #else request.SetRuntime(Aws::Lambda::Model::Runtime::python3_9); #endif request.SetRole(roleArn); request.SetHandler(LAMBDA_HANDLER_NAME); request.SetPublish(true); Aws::Lambda::Model::FunctionCode code; std::ifstream ifstream(INCREMENT_LAMBDA_CODE.c_str(), std::ios_base::in | std::ios_base::binary); if (!ifstream.is_open()) { std::cerr << "Error opening file " << INCREMENT_LAMBDA_CODE << "." << std::endl; #if USE_CPP_LAMBDA_FUNCTION std::cerr << "The cpp Lambda function must be built following the instructions in the cpp_lambda/README.md file. " << std::endl; #endif deleteIamRole(clientConfig); return false; } Aws::StringStream buffer; buffer << ifstream.rdbuf(); code.SetZipFile(Aws::Utils::ByteBuffer((unsigned char *) buffer.str().c_str(), buffer.str().length())); request.SetCode(code); Aws::Lambda::Model::CreateFunctionOutcome outcome = client.CreateFunction( request); if (outcome.IsSuccess()) { std::cout << "The lambda function was successfully created. " << seconds << " seconds elapsed." << std::endl; break; } else if (outcome.GetError().GetErrorType() == Aws::Lambda::LambdaErrors::INVALID_PARAMETER_VALUE && outcome.GetError().GetMessage().find("role") >= 0) { if ((seconds % 5) == 0) { // Log status every 10 seconds. std::cout << "Waiting for the IAM role to become available as a CreateFunction parameter. " << seconds << " seconds elapsed." << std::endl; std::cout << outcome.GetError().GetMessage() << std::endl; } } else { std::cerr << "Error with CreateFunction. " << outcome.GetError().GetMessage() << std::endl; deleteIamRole(clientConfig); return false; } ++seconds; std::this_thread::sleep_for(std::chrono::seconds(1)); } while (60 > seconds); std::cout << "The current Lambda function increments 1 by an input." << std::endl; // 3. Invoke the Lambda function. { int increment = askQuestionForInt("Enter an increment integer: "); Aws::Lambda::Model::InvokeResult invokeResult; Aws::Utils::Json::JsonValue jsonPayload; jsonPayload.WithString("action", "increment"); jsonPayload.WithInteger("number", increment); if (invokeLambdaFunction(jsonPayload, Aws::Lambda::Model::LogType::Tail, invokeResult, client)) { Aws::Utils::Json::JsonValue jsonValue(invokeResult.GetPayload()); Aws::Map<Aws::String, Aws::Utils::Json::JsonView> values = jsonValue.View().GetAllObjects(); auto iter = values.find("result"); if (iter != values.end() && iter->second.IsIntegerType()) { { std::cout << INCREMENT_RESUlT_PREFIX << iter->second.AsInteger() << std::endl; } } else { std::cout << "There was an error in execution. Here is the log." << std::endl; Aws::Utils::ByteBuffer buffer = Aws::Utils::HashingUtils::Base64Decode( invokeResult.GetLogResult()); std::cout << "With log " << buffer.GetUnderlyingData() << std::endl; } } } std::cout << "The Lambda function will now be updated with new code. Press return to continue, "; Aws::String answer; std::getline(std::cin, answer); // 4. Update the Lambda function code. { Aws::Lambda::Model::UpdateFunctionCodeRequest request; request.SetFunctionName(LAMBDA_NAME); std::ifstream ifstream(CALCULATOR_LAMBDA_CODE.c_str(), std::ios_base::in | std::ios_base::binary); if (!ifstream.is_open()) { std::cerr << "Error opening file " << INCREMENT_LAMBDA_CODE << "." << std::endl; #if USE_CPP_LAMBDA_FUNCTION std::cerr << "The cpp Lambda function must be built following the instructions in the cpp_lambda/README.md file. " << std::endl; #endif deleteLambdaFunction(client); deleteIamRole(clientConfig); return false; } Aws::StringStream buffer; buffer << ifstream.rdbuf(); request.SetZipFile( Aws::Utils::ByteBuffer((unsigned char *) buffer.str().c_str(), buffer.str().length())); request.SetPublish(true); Aws::Lambda::Model::UpdateFunctionCodeOutcome outcome = client.UpdateFunctionCode( request); if (outcome.IsSuccess()) { std::cout << "The lambda code was successfully updated." << std::endl; } else { std::cerr << "Error with Lambda::UpdateFunctionCode. " << outcome.GetError().GetMessage() << std::endl; } } std::cout << "This function uses an environment variable to control the logging level." << std::endl; std::cout << "UpdateFunctionConfiguration will be used to set the LOG_LEVEL to DEBUG." << std::endl; seconds = 0; // 5. Update the Lambda function configuration. do { ++seconds; std::this_thread::sleep_for(std::chrono::seconds(1)); Aws::Lambda::Model::UpdateFunctionConfigurationRequest request; request.SetFunctionName(LAMBDA_NAME); Aws::Lambda::Model::Environment environment; environment.AddVariables("LOG_LEVEL", "DEBUG"); request.SetEnvironment(environment); Aws::Lambda::Model::UpdateFunctionConfigurationOutcome outcome = client.UpdateFunctionConfiguration( request); if (outcome.IsSuccess()) { std::cout << "The lambda configuration was successfully updated." << std::endl; break; } // RESOURCE_IN_USE: function code update not completed. else if (outcome.GetError().GetErrorType() != Aws::Lambda::LambdaErrors::RESOURCE_IN_USE) { if ((seconds % 10) == 0) { // Log status every 10 seconds. std::cout << "Lambda function update in progress . After " << seconds << " seconds elapsed." << std::endl; } } else { std::cerr << "Error with Lambda::UpdateFunctionConfiguration. " << outcome.GetError().GetMessage() << std::endl; } } while (0 < seconds); if (0 > seconds) { std::cerr << "Function failed to become active." << std::endl; } else { std::cout << "Updated function active after " << seconds << " seconds." << std::endl; } std::cout << "\nThe new code applies an arithmetic operator to two variables, x an y." << std::endl; std::vector<Aws::String> operators = {"plus", "minus", "times", "divided-by"}; for (size_t i = 0; i < operators.size(); ++i) { std::cout << " " << i + 1 << " " << operators[i] << std::endl; } // 6. Invoke the updated Lambda function. do { int operatorIndex = askQuestionForIntRange("Select an operator index 1 - 4 ", 1, 4); int x = askQuestionForInt("Enter an integer for the x value "); int y = askQuestionForInt("Enter an integer for the y value "); Aws::Utils::Json::JsonValue calculateJsonPayload; calculateJsonPayload.WithString("action", operators[operatorIndex - 1]); calculateJsonPayload.WithInteger("x", x); calculateJsonPayload.WithInteger("y", y); Aws::Lambda::Model::InvokeResult calculatedResult; if (invokeLambdaFunction(calculateJsonPayload, Aws::Lambda::Model::LogType::Tail, calculatedResult, client)) { Aws::Utils::Json::JsonValue jsonValue(calculatedResult.GetPayload()); Aws::Map<Aws::String, Aws::Utils::Json::JsonView> values = jsonValue.View().GetAllObjects(); auto iter = values.find("result"); if (iter != values.end() && iter->second.IsIntegerType()) { std::cout << ARITHMETIC_RESUlT_PREFIX << x << " " << operators[operatorIndex - 1] << " " << y << " is " << iter->second.AsInteger() << std::endl; } else if (iter != values.end() && iter->second.IsFloatingPointType()) { std::cout << ARITHMETIC_RESUlT_PREFIX << x << " " << operators[operatorIndex - 1] << " " << y << " is " << iter->second.AsDouble() << std::endl; } else { std::cout << "There was an error in execution. Here is the log." << std::endl; Aws::Utils::ByteBuffer buffer = Aws::Utils::HashingUtils::Base64Decode( calculatedResult.GetLogResult()); std::cout << "With log " << buffer.GetUnderlyingData() << std::endl; } } answer = askQuestion("Would you like to try another operation? (y/n) "); } while (answer == "y"); std::cout << "A list of the lambda functions will be retrieved. Press return to continue, "; std::getline(std::cin, answer); // 7. List the Lambda functions. std::vector<Aws::String> functions; Aws::String marker; do { Aws::Lambda::Model::ListFunctionsRequest request; if (!marker.empty()) { request.SetMarker(marker); } Aws::Lambda::Model::ListFunctionsOutcome outcome = client.ListFunctions( request); if (outcome.IsSuccess()) { const Aws::Lambda::Model::ListFunctionsResult &result = outcome.GetResult(); std::cout << result.GetFunctions().size() << " lambda functions were retrieved." << std::endl; for (const Aws::Lambda::Model::FunctionConfiguration &functionConfiguration: result.GetFunctions()) { functions.push_back(functionConfiguration.GetFunctionName()); std::cout << functions.size() << " " << functionConfiguration.GetDescription() << std::endl; std::cout << " " << Aws::Lambda::Model::RuntimeMapper::GetNameForRuntime( functionConfiguration.GetRuntime()) << ": " << functionConfiguration.GetHandler() << std::endl; } marker = result.GetNextMarker(); } else { std::cerr << "Error with Lambda::ListFunctions. " << outcome.GetError().GetMessage() << std::endl; } } while (!marker.empty()); // 8. Get a Lambda function. if (!functions.empty()) { std::stringstream question; question << "Choose a function to retrieve between 1 and " << functions.size() << " "; int functionIndex = askQuestionForIntRange(question.str(), 1, static_cast<int>(functions.size())); Aws::String functionName = functions[functionIndex - 1]; Aws::Lambda::Model::GetFunctionRequest request; request.SetFunctionName(functionName); Aws::Lambda::Model::GetFunctionOutcome outcome = client.GetFunction(request); if (outcome.IsSuccess()) { std::cout << "Function retrieve.\n" << outcome.GetResult().GetConfiguration().Jsonize().View().WriteReadable() << std::endl; } else { std::cerr << "Error with Lambda::GetFunction. " << outcome.GetError().GetMessage() << std::endl; } } std::cout << "The resources will be deleted. Press return to continue, "; std::getline(std::cin, answer); // 9. Delete the Lambda function. bool result = deleteLambdaFunction(client); // 10. Delete the IAM role. return result && deleteIamRole(clientConfig); } //! Routine which invokes a Lambda function and returns the result. /*! \param jsonPayload: Payload for invoke function. \param logType: Log type setting for invoke function. \param invokeResult: InvokeResult object to receive the result. \param client: Lambda client. \return bool: Successful completion. */ bool AwsDoc::Lambda::invokeLambdaFunction(const Aws::Utils::Json::JsonValue &jsonPayload, Aws::Lambda::Model::LogType logType, Aws::Lambda::Model::InvokeResult &invokeResult, const Aws::Lambda::LambdaClient &client) { int seconds = 0; bool result = false; /* * In this example, the Invoke function can be called before recently created resources are * available. The Invoke function is called repeatedly until the resources are * available. */ do { Aws::Lambda::Model::InvokeRequest request; request.SetFunctionName(LAMBDA_NAME); request.SetLogType(logType); std::shared_ptr<Aws::IOStream> payload = Aws::MakeShared<Aws::StringStream>( "FunctionTest"); *payload << jsonPayload.View().WriteReadable(); request.SetBody(payload); request.SetContentType("application/json"); Aws::Lambda::Model::InvokeOutcome outcome = client.Invoke(request); if (outcome.IsSuccess()) { invokeResult = std::move(outcome.GetResult()); result = true; break; } // ACCESS_DENIED: because the role is not available yet. // RESOURCE_CONFLICT: because the Lambda function is being created or updated. else if ((outcome.GetError().GetErrorType() == Aws::Lambda::LambdaErrors::ACCESS_DENIED) || (outcome.GetError().GetErrorType() == Aws::Lambda::LambdaErrors::RESOURCE_CONFLICT)) { if ((seconds % 5) == 0) { // Log status every 10 seconds. std::cout << "Waiting for the invoke api to be available, status " << ((outcome.GetError().GetErrorType() == Aws::Lambda::LambdaErrors::ACCESS_DENIED ? "ACCESS_DENIED" : "RESOURCE_CONFLICT")) << ". " << seconds << " seconds elapsed." << std::endl; } } else { std::cerr << "Error with Lambda::InvokeRequest. " << outcome.GetError().GetMessage() << std::endl; break; } ++seconds; std::this_thread::sleep_for(std::chrono::seconds(1)); } while (seconds < 60); return result; }

작업

다음 코드 예시에서는 CreateFunction을 사용하는 방법을 보여 줍니다.

C++ SDK
참고

더 많은 on GitHub가 있습니다. AWS 코드 예시 리포지토리에서 전체 예시를 찾고 설정 및 실행하는 방법을 배워보세요.

Aws::Client::ClientConfiguration clientConfig; // Optional: Set to the AWS Region in which the bucket was created (overrides config file). // clientConfig.region = "us-east-1"; Aws::Lambda::LambdaClient client(clientConfig); Aws::Lambda::Model::CreateFunctionRequest request; request.SetFunctionName(LAMBDA_NAME); request.SetDescription(LAMBDA_DESCRIPTION); // Optional. #if USE_CPP_LAMBDA_FUNCTION request.SetRuntime(Aws::Lambda::Model::Runtime::provided_al2); request.SetTimeout(15); request.SetMemorySize(128); // Assume the AWS Lambda function was built in Docker with same architecture // as this code. #if defined(__x86_64__) request.SetArchitectures({Aws::Lambda::Model::Architecture::x86_64}); #elif defined(__aarch64__) request.SetArchitectures({Aws::Lambda::Model::Architecture::arm64}); #else #error "Unimplemented architecture" #endif // defined(architecture) #else request.SetRuntime(Aws::Lambda::Model::Runtime::python3_9); #endif request.SetRole(roleArn); request.SetHandler(LAMBDA_HANDLER_NAME); request.SetPublish(true); Aws::Lambda::Model::FunctionCode code; std::ifstream ifstream(INCREMENT_LAMBDA_CODE.c_str(), std::ios_base::in | std::ios_base::binary); if (!ifstream.is_open()) { std::cerr << "Error opening file " << INCREMENT_LAMBDA_CODE << "." << std::endl; #if USE_CPP_LAMBDA_FUNCTION std::cerr << "The cpp Lambda function must be built following the instructions in the cpp_lambda/README.md file. " << std::endl; #endif deleteIamRole(clientConfig); return false; } Aws::StringStream buffer; buffer << ifstream.rdbuf(); code.SetZipFile(Aws::Utils::ByteBuffer((unsigned char *) buffer.str().c_str(), buffer.str().length())); request.SetCode(code); Aws::Lambda::Model::CreateFunctionOutcome outcome = client.CreateFunction( request); if (outcome.IsSuccess()) { std::cout << "The lambda function was successfully created. " << seconds << " seconds elapsed." << std::endl; break; } else { std::cerr << "Error with CreateFunction. " << outcome.GetError().GetMessage() << std::endl; deleteIamRole(clientConfig); return false; }
  • API 세부 정보는 CreateFunction AWS SDK for C++ 참조의 API를 참조하세요.

다음 코드 예시에서는 DeleteFunction을 사용하는 방법을 보여 줍니다.

C++ SDK
참고

더 많은 on GitHub가 있습니다. AWS 코드 예시 리포지토리에서 전체 예시를 찾고 설정 및 실행하는 방법을 배워보세요.

Aws::Client::ClientConfiguration clientConfig; // Optional: Set to the AWS Region in which the bucket was created (overrides config file). // clientConfig.region = "us-east-1"; Aws::Lambda::LambdaClient client(clientConfig); Aws::Lambda::Model::DeleteFunctionRequest request; request.SetFunctionName(LAMBDA_NAME); Aws::Lambda::Model::DeleteFunctionOutcome outcome = client.DeleteFunction( request); if (outcome.IsSuccess()) { std::cout << "The lambda function was successfully deleted." << std::endl; } else { std::cerr << "Error with Lambda::DeleteFunction. " << outcome.GetError().GetMessage() << std::endl; }
  • API 세부 정보는 DeleteFunction in AWS SDK for C++ API 참조를 참조하세요.

다음 코드 예시에서는 GetFunction을 사용하는 방법을 보여 줍니다.

C++ SDK
참고

더 많은 on GitHub가 있습니다. AWS 코드 예시 리포지토리에서 전체 예시를 찾고 설정 및 실행하는 방법을 배워보세요.

Aws::Client::ClientConfiguration clientConfig; // Optional: Set to the AWS Region in which the bucket was created (overrides config file). // clientConfig.region = "us-east-1"; Aws::Lambda::LambdaClient client(clientConfig); Aws::Lambda::Model::GetFunctionRequest request; request.SetFunctionName(functionName); Aws::Lambda::Model::GetFunctionOutcome outcome = client.GetFunction(request); if (outcome.IsSuccess()) { std::cout << "Function retrieve.\n" << outcome.GetResult().GetConfiguration().Jsonize().View().WriteReadable() << std::endl; } else { std::cerr << "Error with Lambda::GetFunction. " << outcome.GetError().GetMessage() << std::endl; }
  • API 세부 정보는 GetFunction AWS SDK for C++ 참조의 API를 참조하세요.

다음 코드 예시에서는 Invoke을 사용하는 방법을 보여 줍니다.

C++ SDK
참고

더 많은 on GitHub가 있습니다. AWS 코드 예시 리포지토리에서 전체 예시를 찾고 설정 및 실행하는 방법을 배워보세요.

Aws::Client::ClientConfiguration clientConfig; // Optional: Set to the AWS Region in which the bucket was created (overrides config file). // clientConfig.region = "us-east-1"; Aws::Lambda::LambdaClient client(clientConfig); Aws::Lambda::Model::InvokeRequest request; request.SetFunctionName(LAMBDA_NAME); request.SetLogType(logType); std::shared_ptr<Aws::IOStream> payload = Aws::MakeShared<Aws::StringStream>( "FunctionTest"); *payload << jsonPayload.View().WriteReadable(); request.SetBody(payload); request.SetContentType("application/json"); Aws::Lambda::Model::InvokeOutcome outcome = client.Invoke(request); if (outcome.IsSuccess()) { invokeResult = std::move(outcome.GetResult()); result = true; break; } else { std::cerr << "Error with Lambda::InvokeRequest. " << outcome.GetError().GetMessage() << std::endl; break; }
  • API 세부 정보는 AWS SDK for C++ API 참조에서 호출을 참조하세요.

다음 코드 예시에서는 ListFunctions을 사용하는 방법을 보여 줍니다.

C++ SDK
참고

더 많은 on GitHub가 있습니다. AWS 코드 예시 리포지토리에서 전체 예시를 찾고 설정 및 실행하는 방법을 배워보세요.

Aws::Client::ClientConfiguration clientConfig; // Optional: Set to the AWS Region in which the bucket was created (overrides config file). // clientConfig.region = "us-east-1"; Aws::Lambda::LambdaClient client(clientConfig); std::vector<Aws::String> functions; Aws::String marker; do { Aws::Lambda::Model::ListFunctionsRequest request; if (!marker.empty()) { request.SetMarker(marker); } Aws::Lambda::Model::ListFunctionsOutcome outcome = client.ListFunctions( request); if (outcome.IsSuccess()) { const Aws::Lambda::Model::ListFunctionsResult &result = outcome.GetResult(); std::cout << result.GetFunctions().size() << " lambda functions were retrieved." << std::endl; for (const Aws::Lambda::Model::FunctionConfiguration &functionConfiguration: result.GetFunctions()) { functions.push_back(functionConfiguration.GetFunctionName()); std::cout << functions.size() << " " << functionConfiguration.GetDescription() << std::endl; std::cout << " " << Aws::Lambda::Model::RuntimeMapper::GetNameForRuntime( functionConfiguration.GetRuntime()) << ": " << functionConfiguration.GetHandler() << std::endl; } marker = result.GetNextMarker(); } else { std::cerr << "Error with Lambda::ListFunctions. " << outcome.GetError().GetMessage() << std::endl; } } while (!marker.empty());
  • API 세부 정보는 ListFunctions AWS SDK for C++ 참조의 API를 참조하세요.

다음 코드 예시에서는 UpdateFunctionCode을 사용하는 방법을 보여 줍니다.

C++ SDK
참고

더 많은 on GitHub가 있습니다. AWS 코드 예시 리포지토리에서 전체 예시를 찾고 설정 및 실행하는 방법을 배워보세요.

Aws::Client::ClientConfiguration clientConfig; // Optional: Set to the AWS Region in which the bucket was created (overrides config file). // clientConfig.region = "us-east-1"; Aws::Lambda::LambdaClient client(clientConfig); Aws::Lambda::Model::UpdateFunctionCodeRequest request; request.SetFunctionName(LAMBDA_NAME); std::ifstream ifstream(CALCULATOR_LAMBDA_CODE.c_str(), std::ios_base::in | std::ios_base::binary); if (!ifstream.is_open()) { std::cerr << "Error opening file " << INCREMENT_LAMBDA_CODE << "." << std::endl; #if USE_CPP_LAMBDA_FUNCTION std::cerr << "The cpp Lambda function must be built following the instructions in the cpp_lambda/README.md file. " << std::endl; #endif deleteLambdaFunction(client); deleteIamRole(clientConfig); return false; } Aws::StringStream buffer; buffer << ifstream.rdbuf(); request.SetZipFile( Aws::Utils::ByteBuffer((unsigned char *) buffer.str().c_str(), buffer.str().length())); request.SetPublish(true); Aws::Lambda::Model::UpdateFunctionCodeOutcome outcome = client.UpdateFunctionCode( request); if (outcome.IsSuccess()) { std::cout << "The lambda code was successfully updated." << std::endl; } else { std::cerr << "Error with Lambda::UpdateFunctionCode. " << outcome.GetError().GetMessage() << std::endl; }
  • API 세부 정보는 UpdateFunctionCode AWS SDK for C++ 참조의 API를 참조하세요.

다음 코드 예시에서는 UpdateFunctionConfiguration을 사용하는 방법을 보여 줍니다.

C++ SDK
참고

더 많은 on GitHub가 있습니다. AWS 코드 예시 리포지토리에서 전체 예시를 찾고 설정 및 실행하는 방법을 배워보세요.

Aws::Client::ClientConfiguration clientConfig; // Optional: Set to the AWS Region in which the bucket was created (overrides config file). // clientConfig.region = "us-east-1"; Aws::Lambda::LambdaClient client(clientConfig); Aws::Lambda::Model::UpdateFunctionConfigurationRequest request; request.SetFunctionName(LAMBDA_NAME); Aws::Lambda::Model::Environment environment; environment.AddVariables("LOG_LEVEL", "DEBUG"); request.SetEnvironment(environment); Aws::Lambda::Model::UpdateFunctionConfigurationOutcome outcome = client.UpdateFunctionConfiguration( request); if (outcome.IsSuccess()) { std::cout << "The lambda configuration was successfully updated." << std::endl; break; } else { std::cerr << "Error with Lambda::UpdateFunctionConfiguration. " << outcome.GetError().GetMessage() << std::endl; }

시나리오

다음 코드 예시에서는 사용자가 레이블을 사용하여 사진을 관리할 수 있는 서버리스 애플리케이션을 생성하는 방법을 보여줍니다.

C++ SDK

Amazon Rekognition을 사용하여 이미지에서 레이블을 감지하고 나중에 검색할 수 있도록 저장하는 사진 자산 관리 애플리케이션을 개발하는 방법을 보여줍니다.

전체 소스 코드와 설정 및 실행 방법에 대한 지침은 GitHub의 전체 예제를 참조하세요.

이 예제의 출처에 대한 자세한 내용은 AWS  커뮤니티의 게시물을 참조하십시오.

이 예시에서 사용되는 서비스
  • API Gateway

  • DynamoDB

  • Lambda

  • Amazon Rekognition

  • Amazon S3

  • Amazon SNS