使用 AWS SDK 的 Step Functions 的代码示例 - AWS SDK 代码示例

AWS 文档 SDK 示例 GitHub 存储库中还有更多 AWS SDK 示例。

使用 AWS SDK 的 Step Functions 的代码示例

以下代码示例演示如何将 AWS Step Functions 与 AWS 软件开发工具包(SDK)结合使用。

基本功能是向您展示如何在服务中执行基本操作的代码示例。

操作是大型程序的代码摘录,必须在上下文中运行。您可以通过操作了解如何调用单个服务函数,还可以通过函数相关场景的上下文查看操作。

场景是向您展示如何通过在一个服务中调用多个函数或与其他 AWS 服务 服务结合来完成特定任务的代码示例。

更多资源

开始使用

以下代码示例展示了如何开始使用 Step Functions。

.NET
适用于 .NET 的 SDK
注意

查看 GitHub,了解更多信息。在 AWS 代码示例存储库中查找完整示例,了解如何进行设置和运行。

namespace StepFunctionsActions; using Amazon.StepFunctions; using Amazon.StepFunctions.Model; public class HelloStepFunctions { static async Task Main() { var stepFunctionsClient = new AmazonStepFunctionsClient(); Console.Clear(); Console.WriteLine("Welcome to AWS Step Functions"); Console.WriteLine("Let's list up to 10 of your state machines:"); var stateMachineListRequest = new ListStateMachinesRequest { MaxResults = 10 }; // Get information for up to 10 Step Functions state machines. var response = await stepFunctionsClient.ListStateMachinesAsync(stateMachineListRequest); if (response.StateMachines.Count > 0) { response.StateMachines.ForEach(stateMachine => { Console.WriteLine($"State Machine Name: {stateMachine.Name}\tAmazon Resource Name (ARN): {stateMachine.StateMachineArn}"); }); } else { Console.WriteLine("\tNo state machines were found."); } } }
  • 有关 API 详细信息,请参阅《适用于 .NET 的 AWS SDK API Reference》中的 ListStateMachines

Java
适用于 Java 的 SDK 2.x
注意

查看 GitHub,了解更多信息。在 AWS 代码示例存储库中查找完整示例,了解如何进行设置和运行。

Java 版本的 Hello。

import software.amazon.awssdk.regions.Region; import software.amazon.awssdk.services.sfn.SfnClient; import software.amazon.awssdk.services.sfn.model.ListStateMachinesResponse; import software.amazon.awssdk.services.sfn.model.SfnException; import software.amazon.awssdk.services.sfn.model.StateMachineListItem; import java.util.List; /** * 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 ListStateMachines { public static void main(String[] args) { Region region = Region.US_EAST_1; SfnClient sfnClient = SfnClient.builder() .region(region) .build(); listMachines(sfnClient); sfnClient.close(); } public static void listMachines(SfnClient sfnClient) { try { ListStateMachinesResponse response = sfnClient.listStateMachines(); List<StateMachineListItem> machines = response.stateMachines(); for (StateMachineListItem machine : machines) { System.out.println("The name of the state machine is: " + machine.name()); System.out.println("The ARN value is : " + machine.stateMachineArn()); } } catch (SfnException e) { System.err.println(e.awsErrorDetails().errorMessage()); System.exit(1); } } }
  • 有关 API 详细信息,请参阅《AWS SDK for Java 2.x API Reference》中的 ListStateMachines

Kotlin
适用于 Kotlin 的 SDK
注意

查看 GitHub,了解更多信息。在 AWS 代码示例存储库中查找完整示例,了解如何进行设置和运行。

import aws.sdk.kotlin.services.sfn.SfnClient import aws.sdk.kotlin.services.sfn.model.ListStateMachinesRequest /** Before running this Kotlin 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-kotlin/latest/developer-guide/setup.html */ suspend fun main() { println(DASHES) println("Welcome to the AWS Step Functions Hello example.") println("Lets list up to ten of your state machines:") println(DASHES) listMachines() } suspend fun listMachines() { SfnClient.fromEnvironment { region = "us-east-1" }.use { sfnClient -> val response = sfnClient.listStateMachines(ListStateMachinesRequest {}) response.stateMachines?.forEach { machine -> println("The name of the state machine is ${machine.name}") println("The ARN value is ${machine.stateMachineArn}") } } }
  • 有关 API 详细信息,请参阅《AWS SDK for Kotlin API Reference》中的 ListStateMachines

Python
适用于 Python 的 SDK (Boto3)
注意

查看 GitHub,了解更多信息。在 AWS 代码示例存储库中查找完整示例,了解如何进行设置和运行。

import boto3 def hello_stepfunctions(stepfunctions_client): """ Use the AWS SDK for Python (Boto3) to create an AWS Step Functions client and list the state machines in your account. This list might be empty if you haven't created any state machines. This example uses the default settings specified in your shared credentials and config files. :param stepfunctions_client: A Boto3 Step Functions Client object. """ print("Hello, Step Functions! Let's list up to 10 of your state machines:") state_machines = stepfunctions_client.list_state_machines(maxResults=10) for sm in state_machines["stateMachines"]: print(f"\t{sm['name']}: {sm['stateMachineArn']}") if __name__ == "__main__": hello_stepfunctions(boto3.client("stepfunctions"))
  • 有关 API 详细信息,请参阅《AWS SDK for Python (Boto3) API Reference》中的 ListStateMachines