文档 AWS SDK 示例 GitHub 存储库中还有更多 S AWS DK 示例
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Hello Amazon Keysp
以下代码示例展示了如何开始使用 Amazon Keyspaces。
- .NET
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- AWS SDK for .NET
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注意
还有更多相关信息 GitHub。查找完整示例,学习如何在 AWS 代码示例存储库
中进行设置和运行。 namespace KeyspacesActions; public class HelloKeyspaces { private static ILogger logger = null!; static async Task Main(string[] args) { // Set up dependency injection for Amazon Keyspaces (for Apache Cassandra). using var host = Host.CreateDefaultBuilder(args) .ConfigureLogging(logging => logging.AddFilter("System", LogLevel.Debug) .AddFilter<DebugLoggerProvider>("Microsoft", LogLevel.Information) .AddFilter<ConsoleLoggerProvider>("Microsoft", LogLevel.Trace)) .ConfigureServices((_, services) => services.AddAWSService<IAmazonKeyspaces>() .AddTransient<KeyspacesWrapper>() ) .Build(); logger = LoggerFactory.Create(builder => { builder.AddConsole(); }) .CreateLogger<HelloKeyspaces>(); var keyspacesClient = host.Services.GetRequiredService<IAmazonKeyspaces>(); var keyspacesWrapper = new KeyspacesWrapper(keyspacesClient); Console.WriteLine("Hello, Amazon Keyspaces! Let's list your keyspaces:"); await keyspacesWrapper.ListKeyspaces(); } }
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有关 API 的详细信息,请参阅 AWS SDK for .NET API 参考ListKeyspaces中的。
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- Java
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- 适用于 Java 的 SDK 2.x
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注意
还有更多相关信息 GitHub。查找完整示例,学习如何在 AWS 代码示例存储库
中进行设置和运行。 import software.amazon.awssdk.regions.Region; import software.amazon.awssdk.services.keyspaces.KeyspacesClient; import software.amazon.awssdk.services.keyspaces.model.KeyspaceSummary; import software.amazon.awssdk.services.keyspaces.model.KeyspacesException; import software.amazon.awssdk.services.keyspaces.model.ListKeyspacesRequest; import software.amazon.awssdk.services.keyspaces.model.ListKeyspacesResponse; 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 HelloKeyspaces { public static void main(String[] args) { Region region = Region.US_EAST_1; KeyspacesClient keyClient = KeyspacesClient.builder() .region(region) .build(); listKeyspaces(keyClient); } public static void listKeyspaces(KeyspacesClient keyClient) { try { ListKeyspacesRequest keyspacesRequest = ListKeyspacesRequest.builder() .maxResults(10) .build(); ListKeyspacesResponse response = keyClient.listKeyspaces(keyspacesRequest); List<KeyspaceSummary> keyspaces = response.keyspaces(); for (KeyspaceSummary keyspace : keyspaces) { System.out.println("The name of the keyspace is " + keyspace.keyspaceName()); } } catch (KeyspacesException e) { System.err.println(e.awsErrorDetails().errorMessage()); System.exit(1); } } }
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有关 API 的详细信息,请参阅 AWS SDK for Java 2.x API 参考ListKeyspaces中的。
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- Kotlin
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- 适用于 Kotlin 的 SDK
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注意
还有更多相关信息 GitHub。查找完整示例,学习如何在 AWS 代码示例存储库
中进行设置和运行。 /** 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() { listKeyspaces() } suspend fun listKeyspaces() { val keyspacesRequest = ListKeyspacesRequest { maxResults = 10 } KeyspacesClient { region = "us-east-1" }.use { keyClient -> val response = keyClient.listKeyspaces(keyspacesRequest) response.keyspaces?.forEach { keyspace -> println("The name of the keyspace is ${keyspace.keyspaceName}") } } }
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有关 API 的详细信息,请参阅适用ListKeyspaces
于 K otlin 的AWS SDK API 参考。
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- Python
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- 适用于 Python 的 SDK(Boto3)
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注意
还有更多相关信息 GitHub。查找完整示例,学习如何在 AWS 代码示例存储库
中进行设置和运行。 import boto3 def hello_keyspaces(keyspaces_client): """ Use the AWS SDK for Python (Boto3) to create an Amazon Keyspaces (for Apache Cassandra) client and list the keyspaces in your account. This example uses the default settings specified in your shared credentials and config files. :param keyspaces_client: A Boto3 Amazon Keyspaces Client object. This object wraps the low-level Amazon Keyspaces service API. """ print("Hello, Amazon Keyspaces! Let's list some of your keyspaces:\n") for ks in keyspaces_client.list_keyspaces(maxResults=5).get("keyspaces", []): print(ks["keyspaceName"]) print(f"\t{ks['resourceArn']}") if __name__ == "__main__": hello_keyspaces(boto3.client("keyspaces"))
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有关 API 的详细信息,请参阅适用ListKeyspaces于 Python 的AWS SDK (Boto3) API 参考。
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基本功能
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