使用 Amazon SDK 列出 Lambda 函数 - Amazon Lambda
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使用 Amazon SDK 列出 Lambda 函数

以下代码示例显示如何列出 Lambda 函数。

操作示例是大型程序的代码摘录,必须在上下文中运行。在以下代码示例中,您可以查看此操作的上下文:

.NET
Amazon SDK for .NET
注意

在 GitHub 上查看更多内容。查找完整示例,学习如何在 Amazon 代码示例存储库中进行设置和运行。

/// <summary> /// Get a list of Lambda functions. /// </summary> /// <returns>A list of FunctionConfiguration objects.</returns> public async Task<List<FunctionConfiguration>> ListFunctionsAsync() { var functionList = new List<FunctionConfiguration>(); var functionPaginator = _lambdaService.Paginators.ListFunctions(new ListFunctionsRequest()); await foreach (var function in functionPaginator.Functions) { functionList.Add(function); } return functionList; }
  • 有关 API 的详细信息,请参阅 Amazon SDK for .NET API 参考中的 ListFunctions

C++
适用于 C++ 的 SDK
注意

查看 GitHub,了解更多信息。查找完整示例,学习如何在 Amazon 代码示例存储库中进行设置和运行。

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());
  • 有关 API 的详细信息,请参阅 Amazon SDK for C++ API 参考中的 ListFunctions

CLI
Amazon CLI

检索 Lambda 函数列表

以下 list-functions 示例显示当前用户所有函数的列表。

aws lambda list-functions

输出:

{ "Functions": [ { "TracingConfig": { "Mode": "PassThrough" }, "Version": "$LATEST", "CodeSha256": "dBG9m8SGdmlEjw/JYXlhhvCrAv5TxvXsbL/RMr0fT/I=", "FunctionName": "helloworld", "MemorySize": 128, "RevisionId": "1718e831-badf-4253-9518-d0644210af7b", "CodeSize": 294, "FunctionArn": "arn:aws:lambda:us-west-2:123456789012:function:helloworld", "Handler": "helloworld.handler", "Role": "arn:aws:iam::123456789012:role/service-role/MyTestFunction-role-zgur6bf4", "Timeout": 3, "LastModified": "2023-09-23T18:32:33.857+0000", "Runtime": "nodejs18.x", "Description": "" }, { "TracingConfig": { "Mode": "PassThrough" }, "Version": "$LATEST", "CodeSha256": "sU0cJ2/hOZevwV/lTxCuQqK3gDZP3i8gUoqUUVRmY6E=", "FunctionName": "my-function", "VpcConfig": { "SubnetIds": [], "VpcId": "", "SecurityGroupIds": [] }, "MemorySize": 256, "RevisionId": "93017fc9-59cb-41dc-901b-4845ce4bf668", "CodeSize": 266, "FunctionArn": "arn:aws:lambda:us-west-2:123456789012:function:my-function", "Handler": "index.handler", "Role": "arn:aws:iam::123456789012:role/service-role/helloWorldPython-role-uy3l9qyq", "Timeout": 3, "LastModified": "2023-10-01T16:47:28.490+0000", "Runtime": "nodejs18.x", "Description": "" }, { "Layers": [ { "CodeSize": 41784542, "Arn": "arn:aws:lambda:us-west-2:420165488524:layer:AWSLambda-Python37-SciPy1x:2" }, { "CodeSize": 4121, "Arn": "arn:aws:lambda:us-west-2:123456789012:layer:pythonLayer:1" } ], "TracingConfig": { "Mode": "PassThrough" }, "Version": "$LATEST", "CodeSha256": "ZQukCqxtkqFgyF2cU41Avj99TKQ/hNihPtDtRcc08mI=", "FunctionName": "my-python-function", "VpcConfig": { "SubnetIds": [], "VpcId": "", "SecurityGroupIds": [] }, "MemorySize": 128, "RevisionId": "80b4eabc-acf7-4ea8-919a-e874c213707d", "CodeSize": 299, "FunctionArn": "arn:aws:lambda:us-west-2:123456789012:function:my-python-function", "Handler": "lambda_function.lambda_handler", "Role": "arn:aws:iam::123456789012:role/service-role/my-python-function-role-z5g7dr6n", "Timeout": 3, "LastModified": "2023-10-01T19:40:41.643+0000", "Runtime": "python3.11", "Description": "" } ] }

有关更多信息,请参阅《Amazon Lambda 开发人员指南》中的配置 Amazon Lambda 函数选项

  • 有关 API 详细信息,请参阅《Amazon CLI Command Reference》中的 ListFunctions

Go
适用于 Go V2 的 SDK
注意

查看 GitHub,了解更多信息。查找完整示例,学习如何在 Amazon 代码示例存储库中进行设置和运行。

// FunctionWrapper encapsulates function actions used in the examples. // It contains an AWS Lambda service client that is used to perform user actions. type FunctionWrapper struct { LambdaClient *lambda.Client } // ListFunctions lists up to maxItems functions for the account. This function uses a // lambda.ListFunctionsPaginator to paginate the results. func (wrapper FunctionWrapper) ListFunctions(maxItems int) []types.FunctionConfiguration { var functions []types.FunctionConfiguration paginator := lambda.NewListFunctionsPaginator(wrapper.LambdaClient, &lambda.ListFunctionsInput{ MaxItems: aws.Int32(int32(maxItems)), }) for paginator.HasMorePages() && len(functions) < maxItems { pageOutput, err := paginator.NextPage(context.TODO()) if err != nil { log.Panicf("Couldn't list functions for your account. Here's why: %v\n", err) } functions = append(functions, pageOutput.Functions...) } return functions }
  • 有关 API 的详细信息,请参阅 Amazon SDK for Go API 参考中的 ListFunctions

JavaScript
适用于 JavaScript 的 SDK(v3)
注意

在 GitHub 上查看更多内容。查找完整示例,学习如何在 Amazon 代码示例存储库中进行设置和运行。

const listFunctions = () => { const client = new LambdaClient({}); const command = new ListFunctionsCommand({}); return client.send(command); };
  • 有关 API 的详细信息,请参阅 Amazon SDK for JavaScript API 参考中的 ListFunctions

PHP
适用于 PHP 的 SDK
注意

在 GitHub 上查看更多内容。查找完整示例,学习如何在 Amazon 代码示例存储库中进行设置和运行。

public function listFunctions($maxItems = 50, $marker = null) { if (is_null($marker)) { return $this->lambdaClient->listFunctions([ 'MaxItems' => $maxItems, ]); } return $this->lambdaClient->listFunctions([ 'Marker' => $marker, 'MaxItems' => $maxItems, ]); }
  • 有关 API 的详细信息,请参阅 Amazon SDK for PHP API 参考中的 ListFunctions

Python
SDK for Python(Boto3)
注意

查看 GitHub,了解更多信息。查找完整示例,学习如何在 Amazon 代码示例存储库中进行设置和运行。

class LambdaWrapper: def __init__(self, lambda_client, iam_resource): self.lambda_client = lambda_client self.iam_resource = iam_resource def list_functions(self): """ Lists the Lambda functions for the current account. """ try: func_paginator = self.lambda_client.get_paginator("list_functions") for func_page in func_paginator.paginate(): for func in func_page["Functions"]: print(func["FunctionName"]) desc = func.get("Description") if desc: print(f"\t{desc}") print(f"\t{func['Runtime']}: {func['Handler']}") except ClientError as err: logger.error( "Couldn't list functions. Here's why: %s: %s", err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise
  • 有关 API 详细信息,请参阅《Amazon SDK for Python (Boto3) API 参考》中的 ListFunctions

Ruby
适用于 Ruby 的 SDK
注意

查看 GitHub,了解更多信息。查找完整示例,学习如何在 Amazon 代码示例存储库中进行设置和运行。

class LambdaWrapper attr_accessor :lambda_client def initialize @lambda_client = Aws::Lambda::Client.new @logger = Logger.new($stdout) @logger.level = Logger::WARN end # Lists the Lambda functions for the current account. def list_functions functions = [] @lambda_client.list_functions.each do |response| response["functions"].each do |function| functions.append(function["function_name"]) end end functions rescue Aws::Lambda::Errors::ServiceException => e @logger.error("There was an error executing #{function_name}:\n #{e.message}") end
  • 有关 API 的详细信息,请参阅 Amazon SDK for Ruby API 参考中的 ListFunctions

Rust
适用于 Rust 的 SDK
注意

在 GitHub 上查看更多内容。查找完整示例,学习如何在 Amazon 代码示例存储库中进行设置和运行。

/** List all Lambda functions in the current Region. */ pub async fn list_functions(&self) -> Result<ListFunctionsOutput, anyhow::Error> { info!("Listing lambda functions"); self.lambda_client .list_functions() .send() .await .map_err(anyhow::Error::from) }
  • 有关 API 详细信息,请参阅《Amazon SDK for Rust API 参考》中的 ListFunctions

SAP ABAP
SDK for SAP ABAP
注意

查看 GitHub,了解更多信息。查找完整示例,学习如何在 Amazon 代码示例存储库中进行设置和运行。

TRY. oo_result = lo_lmd->listfunctions( ). " oo_result is returned for testing purposes. " DATA(lt_functions) = oo_result->get_functions( ). MESSAGE 'Retrieved list of Lambda functions.' TYPE 'I'. CATCH /aws1/cx_lmdinvparamvalueex. MESSAGE 'The request contains a non-valid parameter.' TYPE 'E'. CATCH /aws1/cx_lmdserviceexception. MESSAGE 'An internal problem was encountered by the AWS Lambda service.' TYPE 'E'. CATCH /aws1/cx_lmdtoomanyrequestsex. MESSAGE 'The maximum request throughput was reached.' TYPE 'E'. ENDTRY.
  • 有关 API 详细信息,请参阅《Amazon SDK for SAP ABAP API 参考》中的 ListFunctions

有关 Amazon SDK 开发人员指南和代码示例的完整列表,请参阅 将 Lambda 与 Amazon SDK 配合使用。本主题还包括有关入门的信息以及有关先前的 SDK 版本的详细信息。