文档 AWS SDK 示例 GitHub 存储库中还有更多 [S AWS DK 示例](https://github.com/awsdocs/aws-doc-sdk-examples)。

本文属于机器翻译版本。若本译文内容与英语原文存在差异，则一律以英文原文为准。

# 适用于 JavaScript (v2) 的 SDK 的代码示例
<a name="javascript_2_code_examples"></a>

以下代码示例向您展示了如何将 适用于 JavaScript 的 AWS SDK (v2) 与一起 AWS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。

某些服务包含其他示例类别，这些类别说明如何利用特定于服务的库或函数。

**更多资源**
+  **[适用于 JavaScript (v2) 的 SDK 开发者指南](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/welcome.html)** — 有关 JavaScript 与一起 AWS使用的更多信息。
+  **[AWS 开发人员中心](https://aws.amazon.com/developer/code-examples/?awsf.sdk-code-examples-programming-language=programming-language%23javascript)**——您可以按类别或全文搜索筛选的代码示例。
+  **[AWS SDK 示例](https://github.com/awsdocs/aws-doc-sdk-examples)** — 包含首选语言完整代码的 GitHub 存储库。包括有关设置和运行代码的说明。

**Topics**
+ [CloudWatch](javascript_2_cloudwatch_code_examples.md)
+ [CloudWatch 活动](javascript_2_cloudwatch-events_code_examples.md)
+ [CloudWatch 日志](javascript_2_cloudwatch-logs_code_examples.md)
+ [DynamoDB](javascript_2_dynamodb_code_examples.md)
+ [AWS Entity Resolution 数据匹配服务](javascript_2_entityresolution_code_examples.md)
+ [EventBridge](javascript_2_eventbridge_code_examples.md)
+ [Amazon Glacier](javascript_2_glacier_code_examples.md)
+ [IAM](javascript_2_iam_code_examples.md)
+ [Lambda](javascript_2_lambda_code_examples.md)
+ [Amazon Pinpoint](javascript_2_pinpoint_code_examples.md)
+ [Amazon Pinpoint SMS 和 Voice API](javascript_2_pinpoint-sms-voice_code_examples.md)
+ [Amazon SNS](javascript_2_sns_code_examples.md)
+ [Amazon SQS](javascript_2_sqs_code_examples.md)
+ [AWS STS](javascript_2_sts_code_examples.md)

# CloudWatch 使用适用于 JavaScript (v2) 的 SDK 的示例
<a name="javascript_2_cloudwatch_code_examples"></a>

以下代码示例向您展示了如何通过使用 适用于 JavaScript 的 AWS SDK (v2) 来执行操作和实现常见场景。 CloudWatch

*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。

每个示例都包含一个指向完整源代码的链接，您可以从中找到有关如何在上下文中设置和运行代码的说明。

**Topics**
+ [操作](#actions)

## 操作
<a name="actions"></a>

### `DeleteAlarms`
<a name="cloudwatch_DeleteAlarms_javascript_2_topic"></a>

以下代码示例演示了如何使用 `DeleteAlarms`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/cloudwatch#code-examples)中查找完整示例，了解如何进行设置和运行。
导入 SDK 和客户端模块，然后调用 API。  

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create CloudWatch service object
var cw = new AWS.CloudWatch({ apiVersion: "2010-08-01" });

var params = {
  AlarmNames: ["Web_Server_CPU_Utilization"],
};

cw.deleteAlarms(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data);
  }
});
```
+  有关更多信息，请参阅[《适用于 JavaScript 的 AWS SDK Developer Guide》](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-creating-alarms.html#cloudwatch-examples-creating-alarms-deleting)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[DeleteAlarms](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/monitoring-2010-08-01/DeleteAlarms)*中的。

### `DescribeAlarmsForMetric`
<a name="cloudwatch_DescribeAlarmsForMetric_javascript_2_topic"></a>

以下代码示例演示了如何使用 `DescribeAlarmsForMetric`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/cloudwatch#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create CloudWatch service object
var cw = new AWS.CloudWatch({ apiVersion: "2010-08-01" });

cw.describeAlarms({ StateValue: "INSUFFICIENT_DATA" }, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    // List the names of all current alarms in the console
    data.MetricAlarms.forEach(function (item, index, array) {
      console.log(item.AlarmName);
    });
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-creating-alarms.html#cloudwatch-examples-creating-alarms-describing](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-creating-alarms.html#cloudwatch-examples-creating-alarms-describing)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[DescribeAlarmsForMetric](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/monitoring-2010-08-01/DescribeAlarmsForMetric)*中的。

### `DisableAlarmActions`
<a name="cloudwatch_DisableAlarmActions_javascript_2_topic"></a>

以下代码示例演示了如何使用 `DisableAlarmActions`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/cloudwatch#code-examples)中查找完整示例，了解如何进行设置和运行。
导入 SDK 和客户端模块，然后调用 API。  

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create CloudWatch service object
var cw = new AWS.CloudWatch({ apiVersion: "2010-08-01" });

cw.disableAlarmActions(
  { AlarmNames: ["Web_Server_CPU_Utilization"] },
  function (err, data) {
    if (err) {
      console.log("Error", err);
    } else {
      console.log("Success", data);
    }
  }
);
```
+  有关更多信息，请参阅[《适用于 JavaScript 的 AWS SDK Developer Guide》](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-using-alarm-actions.html#cloudwatch-examples-using-alarm-actions-disabling)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[DisableAlarmActions](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/monitoring-2010-08-01/DisableAlarmActions)*中的。

### `EnableAlarmActions`
<a name="cloudwatch_EnableAlarmActions_javascript_2_topic"></a>

以下代码示例演示了如何使用 `EnableAlarmActions`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/cloudwatch#code-examples)中查找完整示例，了解如何进行设置和运行。
导入 SDK 和客户端模块，然后调用 API。  

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create CloudWatch service object
var cw = new AWS.CloudWatch({ apiVersion: "2010-08-01" });

var params = {
  AlarmName: "Web_Server_CPU_Utilization",
  ComparisonOperator: "GreaterThanThreshold",
  EvaluationPeriods: 1,
  MetricName: "CPUUtilization",
  Namespace: "AWS/EC2",
  Period: 60,
  Statistic: "Average",
  Threshold: 70.0,
  ActionsEnabled: true,
  AlarmActions: ["ACTION_ARN"],
  AlarmDescription: "Alarm when server CPU exceeds 70%",
  Dimensions: [
    {
      Name: "InstanceId",
      Value: "INSTANCE_ID",
    },
  ],
  Unit: "Percent",
};

cw.putMetricAlarm(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Alarm action added", data);
    var paramsEnableAlarmAction = {
      AlarmNames: [params.AlarmName],
    };
    cw.enableAlarmActions(paramsEnableAlarmAction, function (err, data) {
      if (err) {
        console.log("Error", err);
      } else {
        console.log("Alarm action enabled", data);
      }
    });
  }
});
```
+  有关更多信息，请参阅[《适用于 JavaScript 的 AWS SDK Developer Guide》](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-using-alarm-actions.html#cloudwatch-examples-using-alarm-actions-enabling)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[EnableAlarmActions](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/monitoring-2010-08-01/EnableAlarmActions)*中的。

### `ListMetrics`
<a name="cloudwatch_ListMetrics_javascript_2_topic"></a>

以下代码示例演示了如何使用 `ListMetrics`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/cloudwatch#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create CloudWatch service object
var cw = new AWS.CloudWatch({ apiVersion: "2010-08-01" });

var params = {
  Dimensions: [
    {
      Name: "LogGroupName" /* required */,
    },
  ],
  MetricName: "IncomingLogEvents",
  Namespace: "AWS/Logs",
};

cw.listMetrics(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Metrics", JSON.stringify(data.Metrics));
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-getting-metrics.html#cloudwatch-examples-getting-metrics-listing](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-getting-metrics.html#cloudwatch-examples-getting-metrics-listing)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[ListMetrics](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/monitoring-2010-08-01/ListMetrics)*中的。

### `PutMetricAlarm`
<a name="cloudwatch_PutMetricAlarm_javascript_2_topic"></a>

以下代码示例演示了如何使用 `PutMetricAlarm`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/cloudwatch#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create CloudWatch service object
var cw = new AWS.CloudWatch({ apiVersion: "2010-08-01" });

var params = {
  AlarmName: "Web_Server_CPU_Utilization",
  ComparisonOperator: "GreaterThanThreshold",
  EvaluationPeriods: 1,
  MetricName: "CPUUtilization",
  Namespace: "AWS/EC2",
  Period: 60,
  Statistic: "Average",
  Threshold: 70.0,
  ActionsEnabled: false,
  AlarmDescription: "Alarm when server CPU exceeds 70%",
  Dimensions: [
    {
      Name: "InstanceId",
      Value: "INSTANCE_ID",
    },
  ],
  Unit: "Percent",
};

cw.putMetricAlarm(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-creating-alarms.html#cloudwatch-examples-creating-alarms-putmetricalarm](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-creating-alarms.html#cloudwatch-examples-creating-alarms-putmetricalarm)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[PutMetricAlarm](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/monitoring-2010-08-01/PutMetricAlarm)*中的。

### `PutMetricData`
<a name="cloudwatch_PutMetricData_javascript_2_topic"></a>

以下代码示例演示了如何使用 `PutMetricData`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/cloudwatch#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create CloudWatch service object
var cw = new AWS.CloudWatch({ apiVersion: "2010-08-01" });

// Create parameters JSON for putMetricData
var params = {
  MetricData: [
    {
      MetricName: "PAGES_VISITED",
      Dimensions: [
        {
          Name: "UNIQUE_PAGES",
          Value: "URLS",
        },
      ],
      Unit: "None",
      Value: 1.0,
    },
  ],
  Namespace: "SITE/TRAFFIC",
};

cw.putMetricData(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", JSON.stringify(data));
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-getting-metrics.html#cloudwatch-examples-getting-metrics-publishing-custom](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-getting-metrics.html#cloudwatch-examples-getting-metrics-publishing-custom)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[PutMetricData](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/monitoring-2010-08-01/PutMetricData)*中的。

# CloudWatch 使用适用于 JavaScript (v2) 的 SDK 的事件示例
<a name="javascript_2_cloudwatch-events_code_examples"></a>

以下代码示例向您展示了如何使用 适用于 JavaScript 的 AWS SDK (v2) with Events 来执行操作和实现常见场景。 CloudWatch 

*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。

每个示例都包含一个指向完整源代码的链接，您可以从中找到有关如何在上下文中设置和运行代码的说明。

**Topics**
+ [操作](#actions)

## 操作
<a name="actions"></a>

### `PutEvents`
<a name="cloudwatch-events_PutEvents_javascript_2_topic"></a>

以下代码示例演示了如何使用 `PutEvents`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/cloudwatch-events#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create CloudWatchEvents service object
var cwevents = new AWS.CloudWatchEvents({ apiVersion: "2015-10-07" });

var params = {
  Entries: [
    {
      Detail: '{ "key1": "value1", "key2": "value2" }',
      DetailType: "appRequestSubmitted",
      Resources: ["RESOURCE_ARN"],
      Source: "com.company.app",
    },
  ],
};

cwevents.putEvents(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data.Entries);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-sending-events.html#cloudwatch-examples-sending-events-putevents](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-sending-events.html#cloudwatch-examples-sending-events-putevents)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[PutEvents](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/monitoring-2010-08-01/PutEvents)*中的。

### `PutRule`
<a name="cloudwatch-events_PutRule_javascript_2_topic"></a>

以下代码示例演示了如何使用 `PutRule`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/cloudwatch-events#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create CloudWatchEvents service object
var cwevents = new AWS.CloudWatchEvents({ apiVersion: "2015-10-07" });

var params = {
  Name: "DEMO_EVENT",
  RoleArn: "IAM_ROLE_ARN",
  ScheduleExpression: "rate(5 minutes)",
  State: "ENABLED",
};

cwevents.putRule(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data.RuleArn);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-sending-events.html#cloudwatch-examples-sending-events-rules](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-sending-events.html#cloudwatch-examples-sending-events-rules)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[PutRule](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/monitoring-2010-08-01/PutRule)*中的。

### `PutTargets`
<a name="cloudwatch-events_PutTargets_javascript_2_topic"></a>

以下代码示例演示了如何使用 `PutTargets`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/cloudwatch-events#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create CloudWatchEvents service object
var cwevents = new AWS.CloudWatchEvents({ apiVersion: "2015-10-07" });

var params = {
  Rule: "DEMO_EVENT",
  Targets: [
    {
      Arn: "LAMBDA_FUNCTION_ARN",
      Id: "myCloudWatchEventsTarget",
    },
  ],
};

cwevents.putTargets(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-sending-events.html#cloudwatch-examples-sending-events-targets](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-sending-events.html#cloudwatch-examples-sending-events-targets)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[PutTargets](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/monitoring-2010-08-01/PutTargets)*中的。

# CloudWatch 使用适用于 JavaScript (v2) 的 SDK 记录示例
<a name="javascript_2_cloudwatch-logs_code_examples"></a>

以下代码示例向您展示了如何使用 适用于 JavaScript 的 AWS SDK (v2) with Lo CloudWatch gs 来执行操作和实现常见场景。

*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。

每个示例都包含一个指向完整源代码的链接，您可以从中找到有关如何在上下文中设置和运行代码的说明。

**Topics**
+ [操作](#actions)

## 操作
<a name="actions"></a>

### `DeleteSubscriptionFilter`
<a name="cloudwatch-logs_DeleteSubscriptionFilter_javascript_2_topic"></a>

以下代码示例演示了如何使用 `DeleteSubscriptionFilter`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/cloudwatch-logs#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the CloudWatchLogs service object
var cwl = new AWS.CloudWatchLogs({ apiVersion: "2014-03-28" });

var params = {
  filterName: "FILTER",
  logGroupName: "LOG_GROUP",
};

cwl.deleteSubscriptionFilter(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-subscriptions.html#cloudwatch-examples-subscriptions-deleting](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-subscriptions.html#cloudwatch-examples-subscriptions-deleting)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[DeleteSubscriptionFilter](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/logs-2014-03-28/DeleteSubscriptionFilter)*中的。

### `DescribeSubscriptionFilters`
<a name="cloudwatch-logs_DescribeSubscriptionFilters_javascript_2_topic"></a>

以下代码示例演示了如何使用 `DescribeSubscriptionFilters`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/cloudwatch-logs#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the CloudWatchLogs service object
var cwl = new AWS.CloudWatchLogs({ apiVersion: "2014-03-28" });

var params = {
  logGroupName: "GROUP_NAME",
  limit: 5,
};

cwl.describeSubscriptionFilters(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data.subscriptionFilters);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-subscriptions.html#cloudwatch-examples-subscriptions-describing](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-subscriptions.html#cloudwatch-examples-subscriptions-describing)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[DescribeSubscriptionFilters](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/logs-2014-03-28/DescribeSubscriptionFilters)*中的。

### `PutSubscriptionFilter`
<a name="cloudwatch-logs_PutSubscriptionFilter_javascript_2_topic"></a>

以下代码示例演示了如何使用 `PutSubscriptionFilter`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/cloudwatch-logs#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the CloudWatchLogs service object
var cwl = new AWS.CloudWatchLogs({ apiVersion: "2014-03-28" });

var params = {
  destinationArn: "LAMBDA_FUNCTION_ARN",
  filterName: "FILTER_NAME",
  filterPattern: "ERROR",
  logGroupName: "LOG_GROUP",
};

cwl.putSubscriptionFilter(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-subscriptions.html#cloudwatch-examples-subscriptions-creating](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-subscriptions.html#cloudwatch-examples-subscriptions-creating)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[PutSubscriptionFilter](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/logs-2014-03-28/PutSubscriptionFilter)*中的。

# 使用适用于 (v2) 的 SDK JavaScript 的 DynamoDB 示例
<a name="javascript_2_dynamodb_code_examples"></a>

以下代码示例向您展示了如何使用带有 DynamoDB 的 适用于 JavaScript 的 AWS SDK (v2) 来执行操作和实现常见场景。

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

每个示例都包含一个指向完整源代码的链接，您可以从中找到有关如何在上下文中设置和运行代码的说明。

**Topics**
+ [操作](#actions)
+ [场景](#scenarios)

## 操作
<a name="actions"></a>

### `BatchGetItem`
<a name="dynamodb_BatchGetItem_javascript_2_topic"></a>

以下代码示例演示了如何使用 `BatchGetItem`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/dynamodb#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create DynamoDB service object
var ddb = new AWS.DynamoDB({ apiVersion: "2012-08-10" });

var params = {
  RequestItems: {
    TABLE_NAME: {
      Keys: [
        { KEY_NAME: { N: "KEY_VALUE_1" } },
        { KEY_NAME: { N: "KEY_VALUE_2" } },
        { KEY_NAME: { N: "KEY_VALUE_3" } },
      ],
      ProjectionExpression: "KEY_NAME, ATTRIBUTE",
    },
  },
};

ddb.batchGetItem(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    data.Responses.TABLE_NAME.forEach(function (element, index, array) {
      console.log(element);
    });
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/dynamodb-example-table-read-write-batch.html#dynamodb-example-table-read-write-batch-reading](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/dynamodb-example-table-read-write-batch.html#dynamodb-example-table-read-write-batch-reading)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[BatchGetItem](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/dynamodb-2012-08-10/BatchGetItem)*中的。

### `BatchWriteItem`
<a name="dynamodb_BatchWriteItem_javascript_2_topic"></a>

以下代码示例演示了如何使用 `BatchWriteItem`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/dynamodb#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create DynamoDB service object
var ddb = new AWS.DynamoDB({ apiVersion: "2012-08-10" });

var params = {
  RequestItems: {
    TABLE_NAME: [
      {
        PutRequest: {
          Item: {
            KEY: { N: "KEY_VALUE" },
            ATTRIBUTE_1: { S: "ATTRIBUTE_1_VALUE" },
            ATTRIBUTE_2: { N: "ATTRIBUTE_2_VALUE" },
          },
        },
      },
      {
        PutRequest: {
          Item: {
            KEY: { N: "KEY_VALUE" },
            ATTRIBUTE_1: { S: "ATTRIBUTE_1_VALUE" },
            ATTRIBUTE_2: { N: "ATTRIBUTE_2_VALUE" },
          },
        },
      },
    ],
  },
};

ddb.batchWriteItem(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/dynamodb-example-table-read-write-batch.html#dynamodb-example-table-read-write-batch-writing](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/dynamodb-example-table-read-write-batch.html#dynamodb-example-table-read-write-batch-writing)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[BatchWriteItem](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/dynamodb-2012-08-10/BatchWriteItem)*中的。

### `CreateTable`
<a name="dynamodb_CreateTable_javascript_2_topic"></a>

以下代码示例演示了如何使用 `CreateTable`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/dynamodb#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the DynamoDB service object
var ddb = new AWS.DynamoDB({ apiVersion: "2012-08-10" });

var params = {
  AttributeDefinitions: [
    {
      AttributeName: "CUSTOMER_ID",
      AttributeType: "N",
    },
    {
      AttributeName: "CUSTOMER_NAME",
      AttributeType: "S",
    },
  ],
  KeySchema: [
    {
      AttributeName: "CUSTOMER_ID",
      KeyType: "HASH",
    },
    {
      AttributeName: "CUSTOMER_NAME",
      KeyType: "RANGE",
    },
  ],
  ProvisionedThroughput: {
    ReadCapacityUnits: 1,
    WriteCapacityUnits: 1,
  },
  TableName: "CUSTOMER_LIST",
  StreamSpecification: {
    StreamEnabled: false,
  },
};

// Call DynamoDB to create the table
ddb.createTable(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Table Created", data);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/dynamodb-examples-using-tables.html#dynamodb-examples-using-tables-creating-a-table](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/dynamodb-examples-using-tables.html#dynamodb-examples-using-tables-creating-a-table)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[CreateTable](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/dynamodb-2012-08-10/CreateTable)*中的。

### `DeleteItem`
<a name="dynamodb_DeleteItem_javascript_2_topic"></a>

以下代码示例演示了如何使用 `DeleteItem`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/dynamodb#code-examples)中查找完整示例，了解如何进行设置和运行。
从表中删除项目。  

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the DynamoDB service object
var ddb = new AWS.DynamoDB({ apiVersion: "2012-08-10" });

var params = {
  TableName: "TABLE",
  Key: {
    KEY_NAME: { N: "VALUE" },
  },
};

// Call DynamoDB to delete the item from the table
ddb.deleteItem(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data);
  }
});
```
使用 DynamoDB 文档客户端从表中删除项目。  

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create DynamoDB document client
var docClient = new AWS.DynamoDB.DocumentClient({ apiVersion: "2012-08-10" });

var params = {
  Key: {
    HASH_KEY: VALUE,
  },
  TableName: "TABLE",
};

docClient.delete(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/dynamodb-example-table-read-write.html#dynamodb-example-table-read-write-deleting-an-item](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/dynamodb-example-table-read-write.html#dynamodb-example-table-read-write-deleting-an-item)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[DeleteItem](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/dynamodb-2012-08-10/DeleteItem)*中的。

### `DeleteTable`
<a name="dynamodb_DeleteTable_javascript_2_topic"></a>

以下代码示例演示了如何使用 `DeleteTable`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/dynamodb#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the DynamoDB service object
var ddb = new AWS.DynamoDB({ apiVersion: "2012-08-10" });

var params = {
  TableName: process.argv[2],
};

// Call DynamoDB to delete the specified table
ddb.deleteTable(params, function (err, data) {
  if (err && err.code === "ResourceNotFoundException") {
    console.log("Error: Table not found");
  } else if (err && err.code === "ResourceInUseException") {
    console.log("Error: Table in use");
  } else {
    console.log("Success", data);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/dynamodb-examples-using-tables.html#dynamodb-examples-using-tables-deleting-a-table](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/dynamodb-examples-using-tables.html#dynamodb-examples-using-tables-deleting-a-table)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[DeleteTable](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/dynamodb-2012-08-10/DeleteTable)*中的。

### `DescribeTable`
<a name="dynamodb_DescribeTable_javascript_2_topic"></a>

以下代码示例演示了如何使用 `DescribeTable`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/dynamodb#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the DynamoDB service object
var ddb = new AWS.DynamoDB({ apiVersion: "2012-08-10" });

var params = {
  TableName: process.argv[2],
};

// Call DynamoDB to retrieve the selected table descriptions
ddb.describeTable(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data.Table.KeySchema);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/dynamodb-examples-using-tables.html#dynamodb-examples-using-tables-describing-a-table](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/dynamodb-examples-using-tables.html#dynamodb-examples-using-tables-describing-a-table)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[DescribeTable](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/dynamodb-2012-08-10/DescribeTable)*中的。

### `GetItem`
<a name="dynamodb_GetItem_javascript_2_topic"></a>

以下代码示例演示了如何使用 `GetItem`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/dynamodb#code-examples)中查找完整示例，了解如何进行设置和运行。
从表中获取项目。  

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the DynamoDB service object
var ddb = new AWS.DynamoDB({ apiVersion: "2012-08-10" });

var params = {
  TableName: "TABLE",
  Key: {
    KEY_NAME: { N: "001" },
  },
  ProjectionExpression: "ATTRIBUTE_NAME",
};

// Call DynamoDB to read the item from the table
ddb.getItem(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data.Item);
  }
});
```
使用 DynamoDB 文档客户端从表中获取项目。  

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create DynamoDB document client
var docClient = new AWS.DynamoDB.DocumentClient({ apiVersion: "2012-08-10" });

var params = {
  TableName: "EPISODES_TABLE",
  Key: { KEY_NAME: VALUE },
};

docClient.get(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data.Item);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/dynamodb-example-dynamodb-utilities.html#dynamodb-example-document-client-get](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/dynamodb-example-dynamodb-utilities.html#dynamodb-example-document-client-get)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[GetItem](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/dynamodb-2012-08-10/GetItem)*中的。

### `ListTables`
<a name="dynamodb_ListTables_javascript_2_topic"></a>

以下代码示例演示了如何使用 `ListTables`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/dynamodb#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the DynamoDB service object
var ddb = new AWS.DynamoDB({ apiVersion: "2012-08-10" });

// Call DynamoDB to retrieve the list of tables
ddb.listTables({ Limit: 10 }, function (err, data) {
  if (err) {
    console.log("Error", err.code);
  } else {
    console.log("Table names are ", data.TableNames);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/dynamodb-examples-using-tables.html#dynamodb-examples-using-tables-listing-tables](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/dynamodb-examples-using-tables.html#dynamodb-examples-using-tables-listing-tables)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[ListTables](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/dynamodb-2012-08-10/ListTables)*中的。

### `PutItem`
<a name="dynamodb_PutItem_javascript_2_topic"></a>

以下代码示例演示了如何使用 `PutItem`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/dynamodb#code-examples)中查找完整示例，了解如何进行设置和运行。
将项目放入表中。  

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the DynamoDB service object
var ddb = new AWS.DynamoDB({ apiVersion: "2012-08-10" });

var params = {
  TableName: "CUSTOMER_LIST",
  Item: {
    CUSTOMER_ID: { N: "001" },
    CUSTOMER_NAME: { S: "Richard Roe" },
  },
};

// Call DynamoDB to add the item to the table
ddb.putItem(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data);
  }
});
```
使用 DynamoDB 文档客户端将项目放入表中。  

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create DynamoDB document client
var docClient = new AWS.DynamoDB.DocumentClient({ apiVersion: "2012-08-10" });

var params = {
  TableName: "TABLE",
  Item: {
    HASHKEY: VALUE,
    ATTRIBUTE_1: "STRING_VALUE",
    ATTRIBUTE_2: VALUE_2,
  },
};

docClient.put(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/dynamodb-example-table-read-write.html#dynamodb-example-table-read-write-writing-an-item](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/dynamodb-example-table-read-write.html#dynamodb-example-table-read-write-writing-an-item)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[PutItem](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/dynamodb-2012-08-10/PutItem)*中的。

### `Query`
<a name="dynamodb_Query_javascript_2_topic"></a>

以下代码示例演示了如何使用 `Query`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/dynamodb#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create DynamoDB document client
var docClient = new AWS.DynamoDB.DocumentClient({ apiVersion: "2012-08-10" });

var params = {
  ExpressionAttributeValues: {
    ":s": 2,
    ":e": 9,
    ":topic": "PHRASE",
  },
  KeyConditionExpression: "Season = :s and Episode > :e",
  FilterExpression: "contains (Subtitle, :topic)",
  TableName: "EPISODES_TABLE",
};

docClient.query(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data.Items);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/dynamodb-example-query-scan.html#dynamodb-example-table-query-scan-querying](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/dynamodb-example-query-scan.html#dynamodb-example-table-query-scan-querying)。
+  有关 API 详细信息，请参阅《适用于 JavaScript 的 AWS SDK API Reference》**中的 [Query](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/dynamodb-2012-08-10/Query)。

### `Scan`
<a name="dynamodb_Scan_javascript_2_topic"></a>

以下代码示例演示了如何使用 `Scan`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/dynamodb#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js.
var AWS = require("aws-sdk");
// Set the AWS Region.
AWS.config.update({ region: "REGION" });

// Create DynamoDB service object.
var ddb = new AWS.DynamoDB({ apiVersion: "2012-08-10" });

const params = {
  // Specify which items in the results are returned.
  FilterExpression: "Subtitle = :topic AND Season = :s AND Episode = :e",
  // Define the expression attribute value, which are substitutes for the values you want to compare.
  ExpressionAttributeValues: {
    ":topic": { S: "SubTitle2" },
    ":s": { N: 1 },
    ":e": { N: 2 },
  },
  // Set the projection expression, which are the attributes that you want.
  ProjectionExpression: "Season, Episode, Title, Subtitle",
  TableName: "EPISODES_TABLE",
};

ddb.scan(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data);
    data.Items.forEach(function (element, index, array) {
      console.log(
        "printing",
        element.Title.S + " (" + element.Subtitle.S + ")"
      );
    });
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/dynamodb-example-query-scan.html#dynamodb-example-table-query-scan-scanning](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/dynamodb-example-query-scan.html#dynamodb-example-table-query-scan-scanning)。
+  有关 API 详细信息，请参阅《适用于 JavaScript 的 AWS SDK API Reference》**中的 [Scan](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/dynamodb-2012-08-10/Scan)。

## 场景
<a name="scenarios"></a>

### 从浏览器调用 Lambda 函数
<a name="cross_LambdaForBrowser_javascript_2_topic"></a>

以下代码示例显示了如何从浏览器调用 AWS Lambda 函数。

**适用于 JavaScript (v2) 的软件开发工具包**  
 您可以创建一个基于浏览器的应用程序，该应用程序使用 AWS Lambda 函数更新包含用户选择的 Amazon DynamoDB 表。  
 有关如何设置和运行的完整源代码和说明，请参阅上的完整示例[GitHub](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/lambda/lambda-for-browser)。  

**本示例中使用的服务**
+ DynamoDB
+ Lambda

# AWS Entity Resolution 数据匹配服务 使用适用于 JavaScript (v2) 的 SDK 的示例
<a name="javascript_2_entityresolution_code_examples"></a>

以下代码示例向您展示了如何通过使用 适用于 JavaScript 的 AWS SDK (v2) 来执行操作和实现常见场景。 AWS Entity Resolution 数据匹配服务

*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。

每个示例都包含一个指向完整源代码的链接，您可以从中找到有关如何在上下文中设置和运行代码的说明。

**Topics**
+ [基本功能](#basics)

## 基本功能
<a name="basics"></a>

### 了解基本功能
<a name="entityresolution_Scenario_javascript_2_topic"></a>

以下代码示例展示了如何：
+ 创建架构映射。
+ 创建 AWS Entity Resolution 数据匹配服务 工作流程。
+ 启动工作流程的匹配作业。
+ 获取匹配作业的详细信息。
+ 获取架构映射。
+ 列出所有架构映射。
+ 为架构映射资源添加标签。
+ 删除资 AWS Entity Resolution 数据匹配服务 产。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/entityresolution#code-examples)中查找完整示例，了解如何进行设置和运行。
运行演示 AWS Entity Resolution 数据匹配服务 功能的交互式场景。  

```
import {
  Scenario,
  ScenarioAction,
  ScenarioInput,
  ScenarioOutput,
} from "@aws-doc-sdk-examples/lib/scenario/index.js";
import {
  CloudFormationClient,
  CreateStackCommand,
  DeleteStackCommand,
  DescribeStacksCommand,
  waitUntilStackExists,
  waitUntilStackCreateComplete,
} from "@aws-sdk/client-cloudformation";
import {
  EntityResolutionClient,
  CreateSchemaMappingCommand,
  CreateMatchingWorkflowCommand,
  GetMatchingJobCommand,
  StartMatchingJobCommand,
  GetSchemaMappingCommand,
  ListSchemaMappingsCommand,
  TagResourceCommand,
  DeleteMatchingWorkflowCommand,
  DeleteSchemaMappingCommand,
  ConflictException,
  ValidationException,
} from "@aws-sdk/client-entityresolution";
import {
  DeleteObjectsCommand,
  DeleteBucketCommand,
  PutObjectCommand,
  S3Client,
  ListObjectsCommand,
} from "@aws-sdk/client-s3";
import { wait } from "@aws-doc-sdk-examples/lib/utils/util-timers.js";

import { readFile } from "node:fs/promises";
import { parseArgs } from "node:util";
import { readFileSync } from "node:fs";
import { fileURLToPath } from "node:url";
import { dirname } from "node:path";

const __filename = fileURLToPath(import.meta.url);
const __dirname = dirname(__filename);
const stackName = `${data.inputs.entityResolutionStack}`;

/*The inputs for this example can be edited in the ../input.json.*/
import data from "../inputs.json" with { type: "json" };
const skipWhenErrors = (state) => state.errors.length > 0;
/**
 * Used repeatedly to have the user press enter.
 * @type {ScenarioInput}
 */
/* v8 ignore next 3 */
const pressEnter = new ScenarioInput("continue", "Press Enter to continue", {
  type: "input",
  verbose: "false",
  skipWhen: skipWhenErrors,
});

const region = "eu-west-1";

const entityResolutionClient = new EntityResolutionClient({ region: region });
const cloudFormationClient = new CloudFormationClient({ region: region });
const s3Client = new S3Client({ region: region });

const greet = new ScenarioOutput(
  "greet",
  "AWS Entity Resolution is a fully-managed machine learning service provided by " +
    "Amazon Web Services (AWS) that helps organizations extract, link, and " +
    "organize information from multiple data sources. It leverages natural " +
    "language processing and deep learning models to identify and resolve " +
    "entities, such as people, places, organizations, and products, " +
    "across structured and unstructured data.\n" +
    "\n" +
    "With Entity Resolution, customers can build robust data integration " +
    "pipelines to combine and reconcile data from multiple systems, databases, " +
    "and documents. The service can handle ambiguous, incomplete, or conflicting " +
    "information, and provide a unified view of entities and their relationships. " +
    "This can be particularly valuable in applications such as customer 360, " +
    "fraud detection, supply chain management, and knowledge management, where " +
    "accurate entity identification is crucial.\n" +
    "\n" +
    "The `EntityResolutionAsyncClient` interface in the AWS SDK for Java 2.x " +
    "provides a set of methods to programmatically interact with the AWS Entity " +
    "Resolution service. This allows developers to automate the entity extraction, " +
    "linking, and deduplication process as part of their data processing workflows. " +
    "With Entity Resolution, organizations can unlock the value of their data, " +
    "improve decision-making, and enhance customer experiences by having a reliable, " +
    "comprehensive view of their key entities.",

  { header: true },
);
const displayBuildCloudFormationStack = new ScenarioOutput(
  "displayBuildCloudFormationStack",
  "To prepare the AWS resources needed for this scenario application, the next step uploads " +
    "a CloudFormation template whose resulting stack creates the following resources:\n" +
    "- An AWS Glue Data Catalog table \n" +
    "- An AWS IAM role \n" +
    "- An AWS S3 bucket \n" +
    "- An AWS Entity Resolution Schema \n" +
    "It can take a couple minutes for the Stack to finish creating the resources.",
);

const sdkBuildCloudFormationStack = new ScenarioAction(
  "sdkBuildCloudFormationStack",
  async (/** @type {State} */ state) => {
    try {
      const data = readFileSync(
        `${__dirname}/../../../../resources/cfn/entity-resolution-basics/entity-resolution-basics-template.yml`,
        "utf8",
      );
      await cloudFormationClient.send(
        new CreateStackCommand({
          StackName: stackName,
          TemplateBody: data,
          Capabilities: ["CAPABILITY_IAM"],
        }),
      );
      await waitUntilStackExists(
        { client: cloudFormationClient },
        { StackName: stackName },
      );
      await waitUntilStackCreateComplete(
        { client: cloudFormationClient },
        { StackName: stackName },
      );
      const stack = await cloudFormationClient.send(
        new DescribeStacksCommand({
          StackName: stackName,
        }),
      );

      state.entityResolutionRole = stack.Stacks[0].Outputs[1];
      state.jsonGlueTable = stack.Stacks[0].Outputs[2];
      state.CSVGlueTable = stack.Stacks[0].Outputs[3];
      state.glueDataBucket = stack.Stacks[0].Outputs[0];
      state.stackName = stack.StackName;
      console.log(state.glueDataBucket);
      console.log(
        `The  ARN of the EntityResolution Role is ${state.entityResolutionRole.OutputValue}`,
      );
      console.log(
        `The ARN of the Json Glue Table is ${state.jsonGlueTable.OutputValue}`,
      );
      console.log(
        `The ARN of the CSV Glue Table is ${state.CSVGlueTable.OutputValue}`,
      );
      console.log(
        `The name of the Glue Data Bucket is ${state.glueDataBucket.OutputValue}\n`,
      );
    } catch (caught) {
      console.error(caught.message);
      throw caught;
    }
    try {
      console.log(
        `Uploading the following JSON in ../data.json to the ${state.glueDataBucket.OutputValue} S3 bucket...`,
      );
      const bucketName = state.glueDataBucket.OutputValue;

      const putObjectParams = {
        Bucket: bucketName,
        Key: "jsonData/data.json",
        Body: await readFileSync(
          `${__dirname}/../../../../javascriptv3/example_code/entityresolution/data.json`,
        ),
      };
      const command = new PutObjectCommand(putObjectParams);
      const response = await s3Client.send(command);
      console.log(
        `../data.json file data uploaded to the ${state.glueDataBucket.OutputValue} S3 bucket.\n`,
      );
    } catch (caught) {
      console.error(caught.message);
      throw caught;
    }
    try {
      console.log(
        `Uploading the CSV data in ../data.csv to the ${state.glueDataBucket.OutputValue} S3 bucket...`,
      );

      const bucketName = state.glueDataBucket.OutputValue;
      const putObjectParams = {
        Bucket: bucketName,
        Key: "csvData/data.csv",
        Body: await readFileSync(
          `${__dirname}/../../../../javascriptv3/example_code/entityresolution/data.csv`,
        ),
      };
      const command = new PutObjectCommand(putObjectParams);
      const response = await s3Client.send(command);
      console.log(
        `../data.csv file data uploaded to the ${state.glueDataBucket.OutputValue} S3 bucket.`,
      );
    } catch (caught) {
      console.error(caught.message);
      throw caught;
    }
  },
);

const displayCreateSchemaMapping = new ScenarioOutput(
  "displayCreateSchemaMapping",
  "1. Create Schema Mapping" +
    "Entity Resolution schema mapping aligns and integrates data from " +
    "multiple sources by identifying and matching corresponding entities " +
    "like customers or products. It unifies schemas, resolves conflicts, " +
    "and uses machine learning to link related entities, enabling a " +
    "consolidated, accurate view for improved data quality and decision-making." +
    "\n" +
    "In this example, the schema mapping lines up with the fields in the JSON and CSV objects. That is, " +
    " it contains these fields: id, name, and email. ",
);

const sdkCreateSchemaMapping = new ScenarioAction(
  "sdkCreateSchemaMapping",
  async (/** @type {State} */ state) => {
    const createSchemaMappingParamsJson = {
      schemaName: `${data.inputs.schemaNameJson}`,
      mappedInputFields: [
        {
          fieldName: "id",
          type: "UNIQUE_ID",
        },
        {
          fieldName: "name",
          type: "NAME",
        },
        {
          fieldName: "email",
          type: "EMAIL_ADDRESS",
        },
      ],
    };
    const createSchemaMappingParamsCSV = {
      schemaName: `${data.inputs.schemaNameCSV}`,
      mappedInputFields: [
        {
          fieldName: "id",
          type: "UNIQUE_ID",
        },
        {
          fieldName: "name",
          type: "NAME",
        },
        {
          fieldName: "email",
          type: "EMAIL_ADDRESS",
        },
        {
          fieldName: "phone",
          type: "PROVIDER_ID",
          subType: "STRING",
        },
      ],
    };
    try {
      const command = new CreateSchemaMappingCommand(
        createSchemaMappingParamsJson,
      );
      const response = await entityResolutionClient.send(command);
      state.schemaNameJson = response.schemaName;
      state.schemaArn = response.schemaArn;
      state.idOutputAttribute = response.mappedInputFields[0].fieldName;
      state.nameOutputAttribute = response.mappedInputFields[1].fieldName;
      state.emailOutputAttribute = response.mappedInputFields[2].fieldName;

      console.log("The JSON schema mapping name is ", state.schemaNameJson);
    } catch (caught) {
      if (caught instanceof ConflictException) {
        console.error(
          `The schema mapping already exists: ${caught.message} \n Exiting program.`,
        );
        return;
      }
    }
    try {
      const command = new CreateSchemaMappingCommand(
        createSchemaMappingParamsCSV,
      );
      const response = await entityResolutionClient.send(command);
      state.schemaNameCSV = response.schemaName;
      state.phoneOutputAttribute = response.mappedInputFields[3].fieldName;
      console.log("The CSV schema mapping name is ", state.schemaNameCSV);
    } catch (caught) {
      if (caught instanceof ConflictException) {
        console.error(
          `An unexpected error occurred while creating the geofence collection: ${caught.message} \n Exiting program.`,
        );
        return;
      }
    }
  },
);
const displayCreateMatchingWorkflow = new ScenarioOutput(
  "displayCreateMatchingWorkflow",
  "2. Create an AWS Entity Resolution Workflow. " +
    "An Entity Resolution matching workflow identifies and links records " +
    "across datasets that represent the same real-world entity, such as " +
    "customers or products. Using techniques like schema mapping, " +
    "data profiling, and machine learning algorithms, " +
    "it evaluates attributes like names or emails to detect duplicates " +
    "or relationships, even with variations or inconsistencies. " +
    "The workflow outputs consolidated, de-duplicated data." +
    "\n" +
    "We will use the machine learning-based matching technique.",
);

const sdkCreateMatchingWorkflow = new ScenarioAction(
  "sdkCreateMatchingWorkflow",
  async (/** @type {State} */ state) => {
    const createMatchingWorkflowParams = {
      roleArn: `${state.entityResolutionRole.OutputValue}`,
      workflowName: `${data.inputs.workflowName}`,
      description: "Created by using the AWS SDK for JavaScript (v3).",
      inputSourceConfig: [
        {
          inputSourceARN: `${state.jsonGlueTable.OutputValue}`,
          schemaName: `${data.inputs.schemaNameJson}`,
          applyNormalization: false,
        },
        {
          inputSourceARN: `${state.CSVGlueTable.OutputValue}`,
          schemaName: `${data.inputs.schemaNameCSV}`,
          applyNormalization: false,
        },
      ],
      outputSourceConfig: [
        {
          outputS3Path: `s3://${state.glueDataBucket.OutputValue}/eroutput`,
          output: [
            {
              name: state.idOutputAttribute,
            },
            {
              name: state.nameOutputAttribute,
            },
            {
              name: state.emailOutputAttribute,
            },
            {
              name: state.phoneOutputAttribute,
            },
          ],
          applyNormalization: false,
        },
      ],
      resolutionTechniques: { resolutionType: "ML_MATCHING" },
    };
    try {
      const command = new CreateMatchingWorkflowCommand(
        createMatchingWorkflowParams,
      );
      const response = await entityResolutionClient.send(command);
      state.workflowArn = response.workflowArn;
      console.log(
        `Workflow created successfully.\n The workflow ARN is: ${response.workflowArn}`,
      );
    } catch (caught) {
      if (caught instanceof ConflictException) {
        console.error(
          `The matching workflow already exists: ${caught.message} \n Exiting program.`,
        );
        return;
      }
      if (caught instanceof ValidationException) {
        console.error(
          `There was a validation exception: ${caught.message} \n Exiting program.`,
        );
        return;
      }
    }
  },
);
const displayMatchingJobOfWorkflow = new ScenarioOutput(
  "displayMatchingJobOfWorkflow",
  "3. Start the matching job of the workflow",
);

const sdkMatchingJobOfWorkflow = new ScenarioAction(
  "sdk",
  async (/** @type {State} */ state) => {
    const matchingJobOfWorkflowParams = {
      workflowName: `${data.inputs.workflowName}`,
    };
    try {
      const command = new StartMatchingJobCommand(matchingJobOfWorkflowParams);
      const response = await entityResolutionClient.send(command);
      state.jobID = response.jobId;
      console.log(`Job ID: ${state.jobID} \n
The matching job was successfully started.`);
    } catch (caught) {
      if (caught instanceof ConflictException) {
        console.error(
          `The matching workflow already exists: ${caught.message} \n Exiting program.`,
        );
        return;
      }
    }
  },
);

const displayGetDetailsforJob = new ScenarioOutput(
  "displayGetDetailsforJob",
  `4. While the matching job is running, let's look at other API methods. First, let's get details for the job `,
);

const sdkGetDetailsforJob = new ScenarioAction(
  "sdkGetDetailsforJob",
  async (/** @type {State} */ state) => {
    const getDetailsforJobParams = {
      workflowName: `${data.inputs.workflowName}`,
      jobId: `${state.jobID}`,
    };
    try {
      const command = new GetMatchingJobCommand(getDetailsforJobParams);
      const response = await entityResolutionClient.send(command);
      state.Status = response.status;
      state.response = response;
      console.log(`Job status: ${state.Status} `);
    } catch (caught) {
      console.error(caught.message);
      throw caught;
    }
  },
);

const displayGetSchemaMappingJson = new ScenarioOutput(
  "displayGetSchemaMappingJson",
  "5. Get the schema mapping for the JSON data.",
);

const sdkGetSchemaMappingJson = new ScenarioAction(
  "sdkGetSchemaMappingJson",
  async (/** @type {State} */ state) => {
    const getSchemaMappingJsonParams = {
      schemaName: `${data.inputs.schemaNameJson}`,
    };
    try {
      const command = new GetSchemaMappingCommand(getSchemaMappingJsonParams);
      const response = await entityResolutionClient.send(command);
      console.log("Schema·mapping·ARN·is:·", response.schemaArn);
      const resultMappings = response.mappedInputFields;
      const noOfResultMappings = resultMappings.length;
      for (let i = 0; i < noOfResultMappings; i++) {
        console.log(
          `Attribute name: ${resultMappings[i].fieldName} `,
          `Attribute type: ${resultMappings[i].type}`,
        );
      }
    } catch (caught) {
      console.error(caught.message);
      throw caught;
    }
  },
);

const displayListSchemaMappings = new ScenarioOutput(
  "displayListSchemaMappings",
  "6. List Schema Mappings.",
);

const sdkListSchemaMappings = new ScenarioAction(
  "sdkListSchemaMappings",
  async (/** @type {State} */ state) => {
    try {
      const command = new ListSchemaMappingsCommand({});
      const response = await entityResolutionClient.send(command);
      const noOfSchemas = response.schemaList.length;
      for (let i = 0; i < noOfSchemas; i++) {
        console.log(
          `Schema Mapping Name: ${response.schemaList[i].schemaName} `,
        );
      }
    } catch (caught) {
      console.error(caught.message);
      throw caught;
    }
  },
);

const displayTagTheJsonSchema = new ScenarioOutput(
  "display",
  "7. Tag the resource. \n" +
    "Tags can help you organize and categorize your Entity Resolution resources. " +
    "You can also use them to scope user permissions by granting a user permission " +
    "to access or change only resources with certain tag values. " +
    "In Entity Resolution, SchemaMapping and MatchingWorkflow can be tagged. For this example, " +
    "the SchemaMapping is tagged.",
);

const sdkTagTheJsonSchema = new ScenarioAction(
  "sdkGetSchemaMappingJson",
  async (/** @type {State} */ state) => {
    const tagResourceCommandParams = {
      resourceArn: state.schemaArn,
      tags: {
        tag1: "tag1Value",
        tag2: "tag2Value",
      },
    };
    try {
      const command = new TagResourceCommand(tagResourceCommandParams);
      const response = await entityResolutionClient.send(command);
      console.log("Successfully tagged the resource.");
    } catch (caught) {
      console.error(caught.message);
      throw caught;
    }
  },
);

const displayGetJobInfo = new ScenarioOutput(
  "displayGetJobInfo",
  "8. View the results of the AWS Entity Resolution Workflow.\n " +
    "Please perform this task manually in the AWS Management Console. ",
);

const displayDeleteResources = new ScenarioOutput(
  "displayDeleteResources",
  "9. Delete the resources \n" +
    "You cannot delete a workflow that is in a running state. So this will take ~30 minutes.\n" +
    "If you don't want to delete the resources, simply exit this application.",
);

const sdkDeleteResources = new ScenarioAction(
  "sdkDeleteResources",
  async (/** @type {State} */ state) => {
    console.log(
      "You selected to delete the resources. This will take about 30 minutes.",
    );
    await wait(1800);
    const bucketName = state.glueDataBucket.OutputValue;
    try {
      const emptyBucket = async ({ bucketName }) => {
        const listObjectsCommand = new ListObjectsCommand({
          Bucket: bucketName,
        });
        const { Contents } = await s3Client.send(listObjectsCommand);
        const keys = Contents.map((c) => c.Key);

        const deleteObjectsCommand = new DeleteObjectsCommand({
          Bucket: bucketName,
          Delete: { Objects: keys.map((key) => ({ Key: key })) },
        });
        await s3Client.send(deleteObjectsCommand);
        console.log(`Bucket ${bucketName} emptied successfully.\n`);
      };
      await emptyBucket({ bucketName });
    } catch (error) {
      console.log("error ", error);
    }
    try {
      const deleteBucket = async ({ bucketName }) => {
        const command = new DeleteBucketCommand({ Bucket: bucketName });
        await s3Client.send(command);
        console.log(`Bucket ${bucketName} deleted successfully.\n`);
      };
      await deleteBucket({ bucketName });
    } catch (error) {
      console.log("error ", error);
    }
    try {
      console.log(
        "Now we will delete the CloudFormation stack, which deletes the resources that were created at the beginning of the scenario.",
      );
      const deleteStackParams = { StackName: `${state.stackName}` };
      const command = new DeleteStackCommand(deleteStackParams);
      const response = await cloudFormationClient.send(command);
      console.log("CloudFormation stack deleted successfully.");
    } catch (error) {
      console.log("error ", error);
    }
    try {
      const deleteWorkflowParams = {
        workflowName: `${data.inputs.workflowName}`,
      };
      const command = new DeleteMatchingWorkflowCommand(deleteWorkflowParams);
      const response = await entityResolutionClient.send(command);
      console.log("Workflow deleted successfully!");
    } catch (caught) {
      if (caught instanceof ConflictException) {
        console.error(
          `Job associated with workflow ${data.inputs.workflowName} is still running, so can't be deleted. 
          Neither can schemas ${data.inputs.schemaNameJson} and ${data.inputs.schemaNameCSV} associated with it. Please confirm this workflow is finished in the AWS Management Console, then delete it manually.`,
        );
        throw caught;
      }
    }
    try {
      const deleteJSONschemaMapping = {
        schemaName: `${data.inputs.schemaNameJson}`,
      };
      const command = new DeleteSchemaMappingCommand(deleteJSONschemaMapping);
      const response = await entityResolutionClient.send(command);
      console.log("Schema mapping deleted successfully. ");
    } catch (caught) {
      if (caught instanceof ConflictException) {
        console.error(
          `The schema ${data.inputs.schemaNameJson} can't be deleted because it is associated with workflow
           ${data.inputs.workflowName}, which is still running. Please confirm this workflow is finished in the AWS Management Console, then delete it manually.`,
        );
        throw caught;
      }
    }
    try {
      const deleteCSVschemaMapping = {
        schemaName: `${data.inputs.schemaNameCSV}`,
      };
      const command = new DeleteSchemaMappingCommand(deleteCSVschemaMapping);
      const response = await entityResolutionClient.send(command);
      console.log("Schema mapping deleted successfully.");
    } catch (caught) {
      if (caught instanceof ConflictException) {
        console.error(
          `The schema ${data.inputs.schemaNameCSV} can't be deleted because it is associated with workflow ${data.inputs.workflowName}, which is still running. Please confirm this workflow is finished in the AWS Management Console, then delete it manually.`,
        );
        throw caught;
      }
    }
  },
  {
    skipWhen: (/** @type {State} */ state) =>
      state.confirmDeleteResources === "",
  },
);

const goodbye = new ScenarioOutput(
  "goodbye",
  "Thank you for checking out the Amazon Location Service Use demo. We hope you " +
    "learned something new, or got some inspiration for your own apps today!" +
    " For more Amazon Location Services examples in different programming languages, have a look at: " +
    "https://docs.aws.amazon.com/code-library/latest/ug/location_code_examples.html",
);

const myScenario = new Scenario("Entity Resolution Basics Scenario", [
  greet,
  pressEnter,
  displayBuildCloudFormationStack,
  sdkBuildCloudFormationStack,
  pressEnter,
  displayCreateSchemaMapping,
  sdkCreateSchemaMapping,
  pressEnter,
  displayCreateMatchingWorkflow,
  sdkCreateMatchingWorkflow,
  pressEnter,
  displayMatchingJobOfWorkflow,
  sdkMatchingJobOfWorkflow,
  pressEnter,
  displayGetDetailsforJob,
  sdkGetDetailsforJob,
  pressEnter,
  displayGetSchemaMappingJson,
  sdkGetSchemaMappingJson,
  pressEnter,
  displayListSchemaMappings,
  sdkListSchemaMappings,
  pressEnter,
  displayTagTheJsonSchema,
  sdkTagTheJsonSchema,
  pressEnter,
  displayGetJobInfo,
  pressEnter,
  displayDeleteResources,
  pressEnter,
  sdkDeleteResources,
  pressEnter,
  goodbye,
]);

/** @type {{ stepHandlerOptions: StepHandlerOptions }} */
export const main = async (stepHandlerOptions) => {
  await myScenario.run(stepHandlerOptions);
};

// Invoke main function if this file was run directly.
if (process.argv[1] === fileURLToPath(import.meta.url)) {
  const { values } = parseArgs({
    options: {
      yes: {
        type: "boolean",
        short: "y",
      },
    },
  });
  main({ confirmAll: values.yes });
}
```
+ 有关 API 详细信息，请参阅《适用于 JavaScript 的 AWS SDK API Reference》**中的以下主题。
  + [CreateMatchingWorkflow](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/entityresolution-2018-05-10/CreateMatchingWorkflow)
  + [CreateSchemaMapping](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/entityresolution-2018-05-10/CreateSchemaMapping)
  + [DeleteMatchingWorkflow](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/entityresolution-2018-05-10/DeleteMatchingWorkflow)
  + [DeleteSchemaMapping](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/entityresolution-2018-05-10/DeleteSchemaMapping)
  + [GetMatchingJob](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/entityresolution-2018-05-10/GetMatchingJob)
  + [GetSchemaMapping](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/entityresolution-2018-05-10/GetSchemaMapping)
  + [ListMatchingWorkflows](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/entityresolution-2018-05-10/ListMatchingWorkflows)
  + [ListSchemaMappings](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/entityresolution-2018-05-10/ListSchemaMappings)
  + [StartMatchingJob](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/entityresolution-2018-05-10/StartMatchingJob)
  + [TagResource](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/entityresolution-2018-05-10/TagResource)

# EventBridge 使用适用于 JavaScript (v2) 的 SDK 的示例
<a name="javascript_2_eventbridge_code_examples"></a>

以下代码示例向您展示了如何通过使用 适用于 JavaScript 的 AWS SDK (v2) 来执行操作和实现常见场景。 EventBridge

*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。

每个示例都包含一个指向完整源代码的链接，您可以从中找到有关如何在上下文中设置和运行代码的说明。

**Topics**
+ [操作](#actions)

## 操作
<a name="actions"></a>

### `PutEvents`
<a name="eventbridge_PutEvents_javascript_2_topic"></a>

以下代码示例演示了如何使用 `PutEvents`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/eventbridge#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create CloudWatchEvents service object
var ebevents = new AWS.EventBridge({ apiVersion: "2015-10-07" });

var params = {
  Entries: [
    {
      Detail: '{ "key1": "value1", "key2": "value2" }',
      DetailType: "appRequestSubmitted",
      Resources: ["RESOURCE_ARN"],
      Source: "com.company.app",
    },
  ],
};

ebevents.putEvents(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data.Entries);
  }
});
```
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[PutEvents](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/eventbridge-2015-10-07/PutEvents)*中的。

### `PutRule`
<a name="eventbridge_PutRule_javascript_2_topic"></a>

以下代码示例演示了如何使用 `PutRule`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/eventbridge#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create CloudWatchEvents service object
var ebevents = new AWS.EventBridge({ apiVersion: "2015-10-07" });

var params = {
  Name: "DEMO_EVENT",
  RoleArn: "IAM_ROLE_ARN",
  ScheduleExpression: "rate(5 minutes)",
  State: "ENABLED",
};

ebevents.putRule(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data.RuleArn);
  }
});
```
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[PutRule](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/eventbridge-2015-10-07/PutRule)*中的。

### `PutTargets`
<a name="eventbridge_PutTargets_javascript_2_topic"></a>

以下代码示例演示了如何使用 `PutTargets`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/eventbridge#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create CloudWatchEvents service object
var ebevents = new AWS.EventBridge({ apiVersion: "2015-10-07" });

var params = {
  Rule: "DEMO_EVENT",
  Targets: [
    {
      Arn: "LAMBDA_FUNCTION_ARN",
      Id: "myEventBridgeTarget",
    },
  ],
};

ebevents.putTargets(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data);
  }
});
```
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[PutTargets](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/eventbridge-2015-10-07/PutTargets)*中的。

# 使用适用于 JavaScript (v2) 的软件开发工具包的 Amazon Glacier 示例
<a name="javascript_2_glacier_code_examples"></a>

以下代码示例向您展示了如何使用带有 Amazon Glacier 的 适用于 JavaScript 的 AWS SDK (v2) 来执行操作和实现常见场景。

*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。

每个示例都包含一个指向完整源代码的链接，您可以从中找到有关如何在上下文中设置和运行代码的说明。

**Topics**
+ [操作](#actions)

## 操作
<a name="actions"></a>

### `CreateVault`
<a name="glacier_CreateVault_javascript_2_topic"></a>

以下代码示例演示了如何使用 `CreateVault`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/glacier#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the SDK for JavaScript
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create a new service object
var glacier = new AWS.Glacier({ apiVersion: "2012-06-01" });
// Call Glacier to create the vault
glacier.createVault({ vaultName: "YOUR_VAULT_NAME" }, function (err) {
  if (!err) {
    console.log("Created vault!");
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/glacier-example-creating-a-vault.html](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/glacier-example-creating-a-vault.html)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[CreateVault](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/glacier-2012-06-01/CreateVault)*中的。

### `UploadArchive`
<a name="glacier_UploadArchive_javascript_2_topic"></a>

以下代码示例演示了如何使用 `UploadArchive`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/glacier#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the SDK for JavaScript
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create a new service object and buffer
var glacier = new AWS.Glacier({ apiVersion: "2012-06-01" });
buffer = Buffer.alloc(2.5 * 1024 * 1024); // 2.5MB buffer

var params = { vaultName: "YOUR_VAULT_NAME", body: buffer };
// Call Glacier to upload the archive.
glacier.uploadArchive(params, function (err, data) {
  if (err) {
    console.log("Error uploading archive!", err);
  } else {
    console.log("Archive ID", data.archiveId);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/glacier-example-uploadrchive.html](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/glacier-example-uploadrchive.html)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[UploadArchive](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/glacier-2012-06-01/UploadArchive)*中的。

### `UploadMultipartPart`
<a name="glacier_UploadMultipartPart_javascript_2_topic"></a>

以下代码示例演示了如何使用 `UploadMultipartPart`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/glacier#code-examples)中查找完整示例，了解如何进行设置和运行。
创建 Buffer 对象的 1 兆字节区块的分段上传。  

```
// Create a new service object and some supporting variables
var glacier = new AWS.Glacier({ apiVersion: "2012-06-01" }),
  vaultName = "YOUR_VAULT_NAME",
  buffer = new Buffer(2.5 * 1024 * 1024), // 2.5MB buffer
  partSize = 1024 * 1024, // 1MB chunks,
  numPartsLeft = Math.ceil(buffer.length / partSize),
  startTime = new Date(),
  params = { vaultName: vaultName, partSize: partSize.toString() };

// Compute the complete SHA-256 tree hash so we can pass it
// to completeMultipartUpload request at the end
var treeHash = glacier.computeChecksums(buffer).treeHash;

// Initiate the multipart upload
console.log("Initiating upload to", vaultName);
// Call Glacier to initiate the upload.
glacier.initiateMultipartUpload(params, function (mpErr, multipart) {
  if (mpErr) {
    console.log("Error!", mpErr.stack);
    return;
  }
  console.log("Got upload ID", multipart.uploadId);

  // Grab each partSize chunk and upload it as a part
  for (var i = 0; i < buffer.length; i += partSize) {
    var end = Math.min(i + partSize, buffer.length),
      partParams = {
        vaultName: vaultName,
        uploadId: multipart.uploadId,
        range: "bytes " + i + "-" + (end - 1) + "/*",
        body: buffer.slice(i, end),
      };

    // Send a single part
    console.log("Uploading part", i, "=", partParams.range);
    glacier.uploadMultipartPart(partParams, function (multiErr, mData) {
      if (multiErr) return;
      console.log("Completed part", this.request.params.range);
      if (--numPartsLeft > 0) return; // complete only when all parts uploaded

      var doneParams = {
        vaultName: vaultName,
        uploadId: multipart.uploadId,
        archiveSize: buffer.length.toString(),
        checksum: treeHash, // the computed tree hash
      };

      console.log("Completing upload...");
      glacier.completeMultipartUpload(doneParams, function (err, data) {
        if (err) {
          console.log("An error occurred while uploading the archive");
          console.log(err);
        } else {
          var delta = (new Date() - startTime) / 1000;
          console.log("Completed upload in", delta, "seconds");
          console.log("Archive ID:", data.archiveId);
          console.log("Checksum:  ", data.checksum);
        }
      });
    });
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/glacier-example-multipart-upload.html](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/glacier-example-multipart-upload.html)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[UploadMultipartPart](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/glacier-2012-06-01/UploadMultipartPart)*中的。

# 使用适用于 JavaScript (v2) 的软件开发工具包的 IAM 示例
<a name="javascript_2_iam_code_examples"></a>

以下代码示例向您展示了如何使用带有 IAM 的 适用于 JavaScript 的 AWS SDK (v2) 来执行操作和实现常见场景。

*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。

每个示例都包含一个指向完整源代码的链接，您可以从中找到有关如何在上下文中设置和运行代码的说明。

**Topics**
+ [操作](#actions)

## 操作
<a name="actions"></a>

### `AttachRolePolicy`
<a name="iam_AttachRolePolicy_javascript_2_topic"></a>

以下代码示例演示了如何使用 `AttachRolePolicy`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/iam#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the IAM service object
var iam = new AWS.IAM({ apiVersion: "2010-05-08" });

var paramsRoleList = {
  RoleName: process.argv[2],
};

iam.listAttachedRolePolicies(paramsRoleList, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    var myRolePolicies = data.AttachedPolicies;
    myRolePolicies.forEach(function (val, index, array) {
      if (myRolePolicies[index].PolicyName === "AmazonDynamoDBFullAccess") {
        console.log(
          "AmazonDynamoDBFullAccess is already attached to this role."
        );
        process.exit();
      }
    });
    var params = {
      PolicyArn: "arn:aws:iam::aws:policy/AmazonDynamoDBFullAccess",
      RoleName: process.argv[2],
    };
    iam.attachRolePolicy(params, function (err, data) {
      if (err) {
        console.log("Unable to attach policy to role", err);
      } else {
        console.log("Role attached successfully");
      }
    });
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-policies.html#iam-examples-policies-attaching-role-policy](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-policies.html#iam-examples-policies-attaching-role-policy)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[AttachRolePolicy](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/iam-2010-05-08/AttachRolePolicy)*中的。

### `CreateAccessKey`
<a name="iam_CreateAccessKey_javascript_2_topic"></a>

以下代码示例演示了如何使用 `CreateAccessKey`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/iam#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the IAM service object
var iam = new AWS.IAM({ apiVersion: "2010-05-08" });

iam.createAccessKey({ UserName: "IAM_USER_NAME" }, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data.AccessKey);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-managing-access-keys.html#iam-examples-managing-access-keys-creating](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-managing-access-keys.html#iam-examples-managing-access-keys-creating)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[CreateAccessKey](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/iam-2010-05-08/CreateAccessKey)*中的。

### `CreateAccountAlias`
<a name="iam_CreateAccountAlias_javascript_2_topic"></a>

以下代码示例演示了如何使用 `CreateAccountAlias`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/iam#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the IAM service object
var iam = new AWS.IAM({ apiVersion: "2010-05-08" });

iam.createAccountAlias({ AccountAlias: process.argv[2] }, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-account-aliases.html#iam-examples-account-aliases-creating](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-account-aliases.html#iam-examples-account-aliases-creating)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[CreateAccountAlias](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/iam-2010-05-08/CreateAccountAlias)*中的。

### `CreatePolicy`
<a name="iam_CreatePolicy_javascript_2_topic"></a>

以下代码示例演示了如何使用 `CreatePolicy`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/iam#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the IAM service object
var iam = new AWS.IAM({ apiVersion: "2010-05-08" });

var myManagedPolicy = {
  Version: "2012-10-17",
  Statement: [
    {
      Effect: "Allow",
      Action: "logs:CreateLogGroup",
      Resource: "RESOURCE_ARN",
    },
    {
      Effect: "Allow",
      Action: [
        "dynamodb:DeleteItem",
        "dynamodb:GetItem",
        "dynamodb:PutItem",
        "dynamodb:Scan",
        "dynamodb:UpdateItem",
      ],
      Resource: "RESOURCE_ARN",
    },
  ],
};

var params = {
  PolicyDocument: JSON.stringify(myManagedPolicy),
  PolicyName: "myDynamoDBPolicy",
};

iam.createPolicy(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-policies.html#iam-examples-policies-creating](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-policies.html#iam-examples-policies-creating)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[CreatePolicy](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/iam-2010-05-08/CreatePolicy)*中的。

### `CreateUser`
<a name="iam_CreateUser_javascript_2_topic"></a>

以下代码示例演示了如何使用 `CreateUser`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/iam#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the IAM service object
var iam = new AWS.IAM({ apiVersion: "2010-05-08" });

var params = {
  UserName: process.argv[2],
};

iam.getUser(params, function (err, data) {
  if (err && err.code === "NoSuchEntity") {
    iam.createUser(params, function (err, data) {
      if (err) {
        console.log("Error", err);
      } else {
        console.log("Success", data);
      }
    });
  } else {
    console.log(
      "User " + process.argv[2] + " already exists",
      data.User.UserId
    );
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-managing-users.html#iam-examples-managing-users-creating-users](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-managing-users.html#iam-examples-managing-users-creating-users)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[CreateUser](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/iam-2010-05-08/CreateUser)*中的。

### `DeleteAccessKey`
<a name="iam_DeleteAccessKey_javascript_2_topic"></a>

以下代码示例演示了如何使用 `DeleteAccessKey`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/iam#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the IAM service object
var iam = new AWS.IAM({ apiVersion: "2010-05-08" });

var params = {
  AccessKeyId: "ACCESS_KEY_ID",
  UserName: "USER_NAME",
};

iam.deleteAccessKey(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-managing-access-keys.html#iam-examples-managing-access-keys-deleting](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-managing-access-keys.html#iam-examples-managing-access-keys-deleting)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[DeleteAccessKey](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/iam-2010-05-08/DeleteAccessKey)*中的。

### `DeleteAccountAlias`
<a name="iam_DeleteAccountAlias_javascript_2_topic"></a>

以下代码示例演示了如何使用 `DeleteAccountAlias`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/iam#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the IAM service object
var iam = new AWS.IAM({ apiVersion: "2010-05-08" });

iam.deleteAccountAlias({ AccountAlias: process.argv[2] }, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-account-aliases.html#iam-examples-account-aliases-deleting](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-account-aliases.html#iam-examples-account-aliases-deleting)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[DeleteAccountAlias](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/iam-2010-05-08/DeleteAccountAlias)*中的。

### `DeleteServerCertificate`
<a name="iam_DeleteServerCertificate_javascript_2_topic"></a>

以下代码示例演示了如何使用 `DeleteServerCertificate`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/iam#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the IAM service object
var iam = new AWS.IAM({ apiVersion: "2010-05-08" });

iam.deleteServerCertificate(
  { ServerCertificateName: "CERTIFICATE_NAME" },
  function (err, data) {
    if (err) {
      console.log("Error", err);
    } else {
      console.log("Success", data);
    }
  }
);
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-server-certificates.html#iam-examples-server-certificates-deleting](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-server-certificates.html#iam-examples-server-certificates-deleting)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[DeleteServerCertificate](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/iam-2010-05-08/DeleteServerCertificate)*中的。

### `DeleteUser`
<a name="iam_DeleteUser_javascript_2_topic"></a>

以下代码示例演示了如何使用 `DeleteUser`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/iam#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the IAM service object
var iam = new AWS.IAM({ apiVersion: "2010-05-08" });

var params = {
  UserName: process.argv[2],
};

iam.getUser(params, function (err, data) {
  if (err && err.code === "NoSuchEntity") {
    console.log("User " + process.argv[2] + " does not exist.");
  } else {
    iam.deleteUser(params, function (err, data) {
      if (err) {
        console.log("Error", err);
      } else {
        console.log("Success", data);
      }
    });
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-managing-users.html#iam-examples-managing-users-deleting-users](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-managing-users.html#iam-examples-managing-users-deleting-users)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[DeleteUser](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/iam-2010-05-08/DeleteUser)*中的。

### `DetachRolePolicy`
<a name="iam_DetachRolePolicy_javascript_2_topic"></a>

以下代码示例演示了如何使用 `DetachRolePolicy`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/iam#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the IAM service object
var iam = new AWS.IAM({ apiVersion: "2010-05-08" });

var paramsRoleList = {
  RoleName: process.argv[2],
};

iam.listAttachedRolePolicies(paramsRoleList, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    var myRolePolicies = data.AttachedPolicies;
    myRolePolicies.forEach(function (val, index, array) {
      if (myRolePolicies[index].PolicyName === "AmazonDynamoDBFullAccess") {
        var params = {
          PolicyArn: "arn:aws:iam::aws:policy/AmazonDynamoDBFullAccess",
          RoleName: process.argv[2],
        };
        iam.detachRolePolicy(params, function (err, data) {
          if (err) {
            console.log("Unable to detach policy from role", err);
          } else {
            console.log("Policy detached from role successfully");
            process.exit();
          }
        });
      }
    });
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-policies.html#iam-examples-policies-detaching-role-policy](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-policies.html#iam-examples-policies-detaching-role-policy)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[DetachRolePolicy](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/iam-2010-05-08/DetachRolePolicy)*中的。

### `GetAccessKeyLastUsed`
<a name="iam_GetAccessKeyLastUsed_javascript_2_topic"></a>

以下代码示例演示了如何使用 `GetAccessKeyLastUsed`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/iam#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the IAM service object
var iam = new AWS.IAM({ apiVersion: "2010-05-08" });

iam.getAccessKeyLastUsed(
  { AccessKeyId: "ACCESS_KEY_ID" },
  function (err, data) {
    if (err) {
      console.log("Error", err);
    } else {
      console.log("Success", data.AccessKeyLastUsed);
    }
  }
);
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-managing-access-keys.html#iam-examples-managing-access-keys-last-used](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-managing-access-keys.html#iam-examples-managing-access-keys-last-used)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[GetAccessKeyLastUsed](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/iam-2010-05-08/GetAccessKeyLastUsed)*中的。

### `GetPolicy`
<a name="iam_GetPolicy_javascript_2_topic"></a>

以下代码示例演示了如何使用 `GetPolicy`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/iam#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the IAM service object
var iam = new AWS.IAM({ apiVersion: "2010-05-08" });

var params = {
  PolicyArn: "arn:aws:iam::aws:policy/AWSLambdaExecute",
};

iam.getPolicy(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data.Policy.Description);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-policies.html#iam-examples-policies-getting](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-policies.html#iam-examples-policies-getting)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[GetPolicy](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/iam-2010-05-08/GetPolicy)*中的。

### `GetServerCertificate`
<a name="iam_GetServerCertificate_javascript_2_topic"></a>

以下代码示例演示了如何使用 `GetServerCertificate`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/iam#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the IAM service object
var iam = new AWS.IAM({ apiVersion: "2010-05-08" });

iam.getServerCertificate(
  { ServerCertificateName: "CERTIFICATE_NAME" },
  function (err, data) {
    if (err) {
      console.log("Error", err);
    } else {
      console.log("Success", data);
    }
  }
);
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-server-certificates.html#iam-examples-server-certificates-getting](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-server-certificates.html#iam-examples-server-certificates-getting)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[GetServerCertificate](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/iam-2010-05-08/GetServerCertificate)*中的。

### `ListAccessKeys`
<a name="iam_ListAccessKeys_javascript_2_topic"></a>

以下代码示例演示了如何使用 `ListAccessKeys`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/iam#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the IAM service object
var iam = new AWS.IAM({ apiVersion: "2010-05-08" });

var params = {
  MaxItems: 5,
  UserName: "IAM_USER_NAME",
};

iam.listAccessKeys(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-managing-access-keys.html#iiam-examples-managing-access-keys-listing](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-managing-access-keys.html#iiam-examples-managing-access-keys-listing)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[ListAccessKeys](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/iam-2010-05-08/ListAccessKeys)*中的。

### `ListAccountAliases`
<a name="iam_ListAccountAliases_javascript_2_topic"></a>

以下代码示例演示了如何使用 `ListAccountAliases`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/iam#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the IAM service object
var iam = new AWS.IAM({ apiVersion: "2010-05-08" });

iam.listAccountAliases({ MaxItems: 10 }, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-account-aliases.html#iam-examples-account-aliases-listing](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-account-aliases.html#iam-examples-account-aliases-listing)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[ListAccountAliases](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/iam-2010-05-08/ListAccountAliases)*中的。

### `ListServerCertificates`
<a name="iam_ListServerCertificates_javascript_2_topic"></a>

以下代码示例演示了如何使用 `ListServerCertificates`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/iam#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the IAM service object
var iam = new AWS.IAM({ apiVersion: "2010-05-08" });

iam.listServerCertificates({}, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-server-certificates.html#iam-examples-server-certificates-listing](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-server-certificates.html#iam-examples-server-certificates-listing)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[ListServerCertificates](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/iam-2010-05-08/ListServerCertificates)*中的。

### `ListUsers`
<a name="iam_ListUsers_javascript_2_topic"></a>

以下代码示例演示了如何使用 `ListUsers`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/iam#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the IAM service object
var iam = new AWS.IAM({ apiVersion: "2010-05-08" });

var params = {
  MaxItems: 10,
};

iam.listUsers(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    var users = data.Users || [];
    users.forEach(function (user) {
      console.log("User " + user.UserName + " created", user.CreateDate);
    });
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-managing-users.html#iam-examples-managing-users-listing-users](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-managing-users.html#iam-examples-managing-users-listing-users)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[ListUsers](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/iam-2010-05-08/ListUsers)*中的。

### `UpdateAccessKey`
<a name="iam_UpdateAccessKey_javascript_2_topic"></a>

以下代码示例演示了如何使用 `UpdateAccessKey`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/iam#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the IAM service object
var iam = new AWS.IAM({ apiVersion: "2010-05-08" });

var params = {
  AccessKeyId: "ACCESS_KEY_ID",
  Status: "Active",
  UserName: "USER_NAME",
};

iam.updateAccessKey(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-managing-access-keys.html#iam-examples-managing-access-keys-updating](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-managing-access-keys.html#iam-examples-managing-access-keys-updating)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[UpdateAccessKey](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/iam-2010-05-08/UpdateAccessKey)*中的。

### `UpdateServerCertificate`
<a name="iam_UpdateServerCertificate_javascript_2_topic"></a>

以下代码示例演示了如何使用 `UpdateServerCertificate`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/iam#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the IAM service object
var iam = new AWS.IAM({ apiVersion: "2010-05-08" });

var params = {
  ServerCertificateName: "CERTIFICATE_NAME",
  NewServerCertificateName: "NEW_CERTIFICATE_NAME",
};

iam.updateServerCertificate(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-server-certificates.html#iam-examples-server-certificates-updating](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-server-certificates.html#iam-examples-server-certificates-updating)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[UpdateServerCertificate](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/iam-2010-05-08/UpdateServerCertificate)*中的。

### `UpdateUser`
<a name="iam_UpdateUser_javascript_2_topic"></a>

以下代码示例演示了如何使用 `UpdateUser`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/iam#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the IAM service object
var iam = new AWS.IAM({ apiVersion: "2010-05-08" });

var params = {
  UserName: process.argv[2],
  NewUserName: process.argv[3],
};

iam.updateUser(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-managing-users.html#iam-examples-managing-users-updating-users](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/iam-examples-managing-users.html#iam-examples-managing-users-updating-users)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[UpdateUser](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/iam-2010-05-08/UpdateUser)*中的。

# 使用适用于 JavaScript (v2) 的软件开发工具包的 Lambda 示例
<a name="javascript_2_lambda_code_examples"></a>

以下代码示例向您展示了如何使用带有 Lambda 的 适用于 JavaScript 的 AWS SDK (v2) 来执行操作和实现常见场景。

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

每个示例都包含一个指向完整源代码的链接，您可以从中找到有关如何在上下文中设置和运行代码的说明。

**Topics**
+ [场景](#scenarios)

## 场景
<a name="scenarios"></a>

### 从浏览器调用 Lambda 函数
<a name="cross_LambdaForBrowser_javascript_2_topic"></a>

以下代码示例显示了如何从浏览器调用 AWS Lambda 函数。

**适用于 JavaScript (v2) 的软件开发工具包**  
 您可以创建一个基于浏览器的应用程序，该应用程序使用 AWS Lambda 函数更新包含用户选择的 Amazon DynamoDB 表。  
 有关如何设置和运行的完整源代码和说明，请参阅上的完整示例[GitHub](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/lambda/lambda-for-browser)。  

**本示例中使用的服务**
+ DynamoDB
+ Lambda

# 使用适用于 JavaScript (v2) 的软件开发工具包的 Amazon Pinpoint 示例
<a name="javascript_2_pinpoint_code_examples"></a>

以下代码示例向您展示了如何使用带有 Amazon Pinpoint 的 适用于 JavaScript 的 AWS SDK (v2) 来执行操作和实现常见场景。

*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。

每个示例都包含一个指向完整源代码的链接，您可以从中找到有关如何在上下文中设置和运行代码的说明。

**Topics**
+ [操作](#actions)

## 操作
<a name="actions"></a>

### `SendMessages`
<a name="pinpoint_SendMessages_javascript_2_topic"></a>

以下代码示例演示了如何使用 `SendMessages`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/pinpoint#code-examples)中查找完整示例，了解如何进行设置和运行。
发送电子邮件。  

```
"use strict";

const AWS = require("aws-sdk");

// The AWS Region that you want to use to send the email. For a list of
// AWS Regions where the Amazon Pinpoint API is available, see
// https://docs.aws.amazon.com/pinpoint/latest/apireference/
const aws_region = "us-west-2";

// The "From" address. This address has to be verified in Amazon Pinpoint
// in the region that you use to send email.
const senderAddress = "sender@example.com";

// The address on the "To" line. If your Amazon Pinpoint account is in
// the sandbox, this address also has to be verified.
var toAddress = "recipient@example.com";

// The Amazon Pinpoint project/application ID to use when you send this message.
// Make sure that the SMS channel is enabled for the project or application
// that you choose.
const appId = "ce796be37f32f178af652b26eexample";

// The subject line of the email.
var subject = "Amazon Pinpoint (AWS SDK for JavaScript in Node.js)";

// The email body for recipients with non-HTML email clients.
var body_text = `Amazon Pinpoint Test (SDK for JavaScript in Node.js)
----------------------------------------------------
This email was sent with Amazon Pinpoint using the AWS SDK for JavaScript in Node.js.
For more information, see https:\/\/aws.amazon.com/sdk-for-node-js/`;

// The body of the email for recipients whose email clients support HTML content.
var body_html = `<html>
<head></head>
<body>
  <h1>Amazon Pinpoint Test (SDK for JavaScript in Node.js)</h1>
  <p>This email was sent with
    <a href='https://aws.amazon.com/pinpoint/'>the Amazon Pinpoint API</a> using the
    <a href='https://aws.amazon.com/sdk-for-node-js/'>
      AWS SDK for JavaScript in Node.js</a>.</p>
</body>
</html>`;

// The character encoding the you want to use for the subject line and
// message body of the email.
var charset = "UTF-8";

// Specify that you're using a shared credentials file.
var credentials = new AWS.SharedIniFileCredentials({ profile: "default" });
AWS.config.credentials = credentials;

// Specify the region.
AWS.config.update({ region: aws_region });

//Create a new Pinpoint object.
var pinpoint = new AWS.Pinpoint();

// Specify the parameters to pass to the API.
var params = {
  ApplicationId: appId,
  MessageRequest: {
    Addresses: {
      [toAddress]: {
        ChannelType: "EMAIL",
      },
    },
    MessageConfiguration: {
      EmailMessage: {
        FromAddress: senderAddress,
        SimpleEmail: {
          Subject: {
            Charset: charset,
            Data: subject,
          },
          HtmlPart: {
            Charset: charset,
            Data: body_html,
          },
          TextPart: {
            Charset: charset,
            Data: body_text,
          },
        },
      },
    },
  },
};

//Try to send the email.
pinpoint.sendMessages(params, function (err, data) {
  // If something goes wrong, print an error message.
  if (err) {
    console.log(err.message);
  } else {
    console.log(
      "Email sent! Message ID: ",
      data["MessageResponse"]["Result"][toAddress]["MessageId"]
    );
  }
});
```
发送短信。  

```
"use strict";

var AWS = require("aws-sdk");

// The AWS Region that you want to use to send the message. For a list of
// AWS Regions where the Amazon Pinpoint API is available, see
// https://docs.aws.amazon.com/pinpoint/latest/apireference/.
var aws_region = "us-east-1";

// The phone number or short code to send the message from. The phone number
// or short code that you specify has to be associated with your Amazon Pinpoint
// account. For best results, specify long codes in E.164 format.
var originationNumber = "+12065550199";

// The recipient's phone number.  For best results, you should specify the
// phone number in E.164 format.
var destinationNumber = "+14255550142";

// The content of the SMS message.
var message =
  "This message was sent through Amazon Pinpoint " +
  "using the AWS SDK for JavaScript in Node.js. Reply STOP to " +
  "opt out.";

// The Amazon Pinpoint project/application ID to use when you send this message.
// Make sure that the SMS channel is enabled for the project or application
// that you choose.
var applicationId = "ce796be37f32f178af652b26eexample";

// The type of SMS message that you want to send. If you plan to send
// time-sensitive content, specify TRANSACTIONAL. If you plan to send
// marketing-related content, specify PROMOTIONAL.
var messageType = "TRANSACTIONAL";

// The registered keyword associated with the originating short code.
var registeredKeyword = "myKeyword";

// The sender ID to use when sending the message. Support for sender ID
// varies by country or region. For more information, see
// https://docs.aws.amazon.com/pinpoint/latest/userguide/channels-sms-countries.html
var senderId = "MySenderID";

// Specify that you're using a shared credentials file, and optionally specify
// the profile that you want to use.
var credentials = new AWS.SharedIniFileCredentials({ profile: "default" });
AWS.config.credentials = credentials;

// Specify the region.
AWS.config.update({ region: aws_region });

//Create a new Pinpoint object.
var pinpoint = new AWS.Pinpoint();

// Specify the parameters to pass to the API.
var params = {
  ApplicationId: applicationId,
  MessageRequest: {
    Addresses: {
      [destinationNumber]: {
        ChannelType: "SMS",
      },
    },
    MessageConfiguration: {
      SMSMessage: {
        Body: message,
        Keyword: registeredKeyword,
        MessageType: messageType,
        OriginationNumber: originationNumber,
        SenderId: senderId,
      },
    },
  },
};

//Try to send the message.
pinpoint.sendMessages(params, function (err, data) {
  // If something goes wrong, print an error message.
  if (err) {
    console.log(err.message);
    // Otherwise, show the unique ID for the message.
  } else {
    console.log(
      "Message sent! " +
        data["MessageResponse"]["Result"][destinationNumber]["StatusMessage"]
    );
  }
});
```
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[SendMessages](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/pinpoint-2016-12-01/SendMessages)*中的。

# 使用适用于 JavaScript (v2) 的软件开发工具包的 Amazon Pinpoint 短信和语音 API 示例
<a name="javascript_2_pinpoint-sms-voice_code_examples"></a>

以下代码示例向您展示了如何使用带有 Amazon Pinpoint 短信和语音 API 的 适用于 JavaScript 的 AWS SDK (v2) 来执行操作和实现常见场景。

*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。

每个示例都包含一个指向完整源代码的链接，您可以从中找到有关如何在上下文中设置和运行代码的说明。

**Topics**
+ [操作](#actions)

## 操作
<a name="actions"></a>

### `SendVoiceMessage`
<a name="pinpoint-sms-voice_SendVoiceMessage_javascript_2_topic"></a>

以下代码示例演示了如何使用 `SendVoiceMessage`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/pinpoint-sms-voice#code-examples)中查找完整示例，了解如何进行设置和运行。

```
"use strict";

var AWS = require("aws-sdk");

// The AWS Region that you want to use to send the voice message. For a list of
// AWS Regions where the Amazon Pinpoint SMS and Voice API is available, see
// https://docs.aws.amazon.com/pinpoint-sms-voice/latest/APIReference/
var aws_region = "us-east-1";

// The phone number that the message is sent from. The phone number that you
// specify has to be associated with your Amazon Pinpoint account. For best results, you
// should specify the phone number in E.164 format.
var originationNumber = "+12065550110";

// The recipient's phone number. For best results, you should specify the phone
// number in E.164 format.
var destinationNumber = "+12065550142";

// The language to use when sending the message. For a list of supported
// languages, see https://docs.aws.amazon.com/polly/latest/dg/SupportedLanguage.html
var languageCode = "en-US";

// The Amazon Polly voice that you want to use to send the message. For a list
// of voices, see https://docs.aws.amazon.com/polly/latest/dg/voicelist.html
var voiceId = "Matthew";

// The content of the message. This example uses SSML to customize and control
// certain aspects of the message, such as the volume or the speech rate.
// The message can't contain any line breaks.
var ssmlMessage =
  "<speak>" +
  "This is a test message sent from <emphasis>Amazon Pinpoint</emphasis> " +
  "using the <break strength='weak'/>AWS SDK for JavaScript in Node.js. " +
  "<amazon:effect phonation='soft'>Thank you for listening." +
  "</amazon:effect>" +
  "</speak>";

// The phone number that you want to appear on the recipient's device. The phone
// number that you specify has to be associated with your Amazon Pinpoint account.
var callerId = "+12065550199";

// The configuration set that you want to use to send the message.
var configurationSet = "ConfigSet";

// Specify that you're using a shared credentials file, and optionally specify
// the profile that you want to use.
var credentials = new AWS.SharedIniFileCredentials({ profile: "default" });
AWS.config.credentials = credentials;

// Specify the region.
AWS.config.update({ region: aws_region });

//Create a new Pinpoint object.
var pinpointsmsvoice = new AWS.PinpointSMSVoice();

var params = {
  CallerId: callerId,
  ConfigurationSetName: configurationSet,
  Content: {
    SSMLMessage: {
      LanguageCode: languageCode,
      Text: ssmlMessage,
      VoiceId: voiceId,
    },
  },
  DestinationPhoneNumber: destinationNumber,
  OriginationPhoneNumber: originationNumber,
};

//Try to send the message.
pinpointsmsvoice.sendVoiceMessage(params, function (err, data) {
  // If something goes wrong, print an error message.
  if (err) {
    console.log(err.message);
    // Otherwise, show the unique ID for the message.
  } else {
    console.log("Message sent! Message ID: " + data["MessageId"]);
  }
});
```
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[SendVoiceMessage](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/pinpoint-sms-voice-2018-09-05/SendVoiceMessage)*中的。

# 使用适用于 JavaScript (v2) 的软件开发工具包的 Amazon SNS 示例
<a name="javascript_2_sns_code_examples"></a>

以下代码示例向您展示如何使用带有 Amazon SNS 的 适用于 JavaScript 的 AWS SDK (v2) 来执行操作和实现常见场景。

*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。

每个示例都包含一个指向完整源代码的链接，您可以从中找到有关如何在上下文中设置和运行代码的说明。

**Topics**
+ [操作](#actions)

## 操作
<a name="actions"></a>

### `GetTopicAttributes`
<a name="sns_GetTopicAttributes_javascript_2_topic"></a>

以下代码示例演示了如何使用 `GetTopicAttributes`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/sns#code-examples)中查找完整示例，了解如何进行设置和运行。
导入 SDK 和客户端模块，然后调用 API。  

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set region
AWS.config.update({ region: "REGION" });

// Create promise and SNS service object
var getTopicAttribsPromise = new AWS.SNS({ apiVersion: "2010-03-31" })
  .getTopicAttributes({ TopicArn: "TOPIC_ARN" })
  .promise();

// Handle promise's fulfilled/rejected states
getTopicAttribsPromise
  .then(function (data) {
    console.log(data);
  })
  .catch(function (err) {
    console.error(err, err.stack);
  });
```
+  有关更多信息，请参阅[《适用于 JavaScript 的 AWS SDK Developer Guide》](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/sns-examples-managing-topics.html#sns-examples-managing-topicsgetttopicattributes)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[GetTopicAttributes](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/sns-2010-03-31/GetTopicAttributes)*中的。

# 使用适用于 JavaScript (v2) 的软件开发工具包的亚马逊 SQS 示例
<a name="javascript_2_sqs_code_examples"></a>

以下代码示例向您展示如何使用带有 Amazon SQS 的 适用于 JavaScript 的 AWS SDK (v2) 来执行操作和实现常见场景。

*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。

每个示例都包含一个指向完整源代码的链接，您可以从中找到有关如何在上下文中设置和运行代码的说明。

**Topics**
+ [操作](#actions)

## 操作
<a name="actions"></a>

### `ChangeMessageVisibility`
<a name="sqs_ChangeMessageVisibility_javascript_2_topic"></a>

以下代码示例演示了如何使用 `ChangeMessageVisibility`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/sqs#code-examples)中查找完整示例，了解如何进行设置和运行。
接收 Amazon SQS 消息并更改其超时可见性。  

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region to us-west-2
AWS.config.update({ region: "us-west-2" });

// Create the SQS service object
var sqs = new AWS.SQS({ apiVersion: "2012-11-05" });

var queueURL = "https://sqs.REGION.amazonaws.com/ACCOUNT-ID/QUEUE-NAME";

var params = {
  AttributeNames: ["SentTimestamp"],
  MaxNumberOfMessages: 1,
  MessageAttributeNames: ["All"],
  QueueUrl: queueURL,
};

sqs.receiveMessage(params, function (err, data) {
  if (err) {
    console.log("Receive Error", err);
  } else {
    // Make sure we have a message
    if (data.Messages != null) {
      var visibilityParams = {
        QueueUrl: queueURL,
        ReceiptHandle: data.Messages[0].ReceiptHandle,
        VisibilityTimeout: 20, // 20 second timeout
      };
      sqs.changeMessageVisibility(visibilityParams, function (err, data) {
        if (err) {
          console.log("Delete Error", err);
        } else {
          console.log("Timeout Changed", data);
        }
      });
    } else {
      console.log("No messages to change");
    }
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/sqs-examples-managing-visibility-timeout.html#sqs-examples-managing-visibility-timeout-setting](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/sqs-examples-managing-visibility-timeout.html#sqs-examples-managing-visibility-timeout-setting)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[ChangeMessageVisibility](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/sqs-2012-11-05/ChangeMessageVisibility)*中的。

### `CreateQueue`
<a name="sqs_CreateQueue_javascript_2_topic"></a>

以下代码示例演示了如何使用 `CreateQueue`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/sqs#code-examples)中查找完整示例，了解如何进行设置和运行。
创建 Amazon SQS 标准队列。  

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create an SQS service object
var sqs = new AWS.SQS({ apiVersion: "2012-11-05" });

var params = {
  QueueName: "SQS_QUEUE_NAME",
  Attributes: {
    DelaySeconds: "60",
    MessageRetentionPeriod: "86400",
  },
};

sqs.createQueue(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data.QueueUrl);
  }
});
```
创建等待消息到达的 Amazon SQS 队列。  

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the SQS service object
var sqs = new AWS.SQS({ apiVersion: "2012-11-05" });

var params = {
  QueueName: "SQS_QUEUE_NAME",
  Attributes: {
    ReceiveMessageWaitTimeSeconds: "20",
  },
};

sqs.createQueue(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data.QueueUrl);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/sqs-examples-using-queues.html#sqs-examples-using-queues-create-queue](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/sqs-examples-using-queues.html#sqs-examples-using-queues-create-queue)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[CreateQueue](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/sqs-2012-11-05/CreateQueue)*中的。

### `DeleteMessage`
<a name="sqs_DeleteMessage_javascript_2_topic"></a>

以下代码示例演示了如何使用 `DeleteMessage`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/sqs#code-examples)中查找完整示例，了解如何进行设置和运行。
接收和删除 Amazon SQS 消息。  

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create an SQS service object
var sqs = new AWS.SQS({ apiVersion: "2012-11-05" });

var queueURL = "SQS_QUEUE_URL";

var params = {
  AttributeNames: ["SentTimestamp"],
  MaxNumberOfMessages: 10,
  MessageAttributeNames: ["All"],
  QueueUrl: queueURL,
  VisibilityTimeout: 20,
  WaitTimeSeconds: 0,
};

sqs.receiveMessage(params, function (err, data) {
  if (err) {
    console.log("Receive Error", err);
  } else if (data.Messages) {
    var deleteParams = {
      QueueUrl: queueURL,
      ReceiptHandle: data.Messages[0].ReceiptHandle,
    };
    sqs.deleteMessage(deleteParams, function (err, data) {
      if (err) {
        console.log("Delete Error", err);
      } else {
        console.log("Message Deleted", data);
      }
    });
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/sqs-examples-send-receive-messages.html#sqs-examples-send-receive-messages-receiving](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/sqs-examples-send-receive-messages.html#sqs-examples-send-receive-messages-receiving)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[DeleteMessage](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/sqs-2012-11-05/DeleteMessage)*中的。

### `DeleteQueue`
<a name="sqs_DeleteQueue_javascript_2_topic"></a>

以下代码示例演示了如何使用 `DeleteQueue`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/sqs#code-examples)中查找完整示例，了解如何进行设置和运行。
删除 Amazon SQS 队列。  

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create an SQS service object
var sqs = new AWS.SQS({ apiVersion: "2012-11-05" });

var params = {
  QueueUrl: "SQS_QUEUE_URL",
};

sqs.deleteQueue(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/sqs-examples-using-queues.html#sqs-examples-using-queues-delete-queue](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/sqs-examples-using-queues.html#sqs-examples-using-queues-delete-queue)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[DeleteQueue](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/sqs-2012-11-05/DeleteQueue)*中的。

### `GetQueueUrl`
<a name="sqs_GetQueueUrl_javascript_2_topic"></a>

以下代码示例演示了如何使用 `GetQueueUrl`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/sqs#code-examples)中查找完整示例，了解如何进行设置和运行。
获取 Amazon SQS 队列的 URL。  

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create an SQS service object
var sqs = new AWS.SQS({ apiVersion: "2012-11-05" });

var params = {
  QueueName: "SQS_QUEUE_NAME",
};

sqs.getQueueUrl(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data.QueueUrl);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/sqs-examples-using-queues.html#sqs-examples-using-queues-get-queue-url](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/sqs-examples-using-queues.html#sqs-examples-using-queues-get-queue-url)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[GetQueueUrl](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/sqs-2012-11-05/GetQueueUrl)*中的。

### `ListQueues`
<a name="sqs_ListQueues_javascript_2_topic"></a>

以下代码示例演示了如何使用 `ListQueues`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/sqs#code-examples)中查找完整示例，了解如何进行设置和运行。
列出 Amazon SQS 队列。  

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create an SQS service object
var sqs = new AWS.SQS({ apiVersion: "2012-11-05" });

var params = {};

sqs.listQueues(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data.QueueUrls);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/sqs-examples-using-queues.html#sqs-examples-using-queues-listing-queues](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/sqs-examples-using-queues.html#sqs-examples-using-queues-listing-queues)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[ListQueues](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/sqs-2012-11-05/ListQueues)*中的。

### `ReceiveMessage`
<a name="sqs_ReceiveMessage_javascript_2_topic"></a>

以下代码示例演示了如何使用 `ReceiveMessage`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/sqs#code-examples)中查找完整示例，了解如何进行设置和运行。
使用长轮询接收来自 Amazon SQS 队列的消息。  

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create the SQS service object
var sqs = new AWS.SQS({ apiVersion: "2012-11-05" });

var queueURL = "SQS_QUEUE_URL";

var params = {
  AttributeNames: ["SentTimestamp"],
  MaxNumberOfMessages: 1,
  MessageAttributeNames: ["All"],
  QueueUrl: queueURL,
  WaitTimeSeconds: 20,
};

sqs.receiveMessage(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/sqs-examples-enable-long-polling.html#sqs-examples-enable-long-polling-on-receive-message](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/sqs-examples-enable-long-polling.html#sqs-examples-enable-long-polling-on-receive-message)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[ReceiveMessage](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/sqs-2012-11-05/ReceiveMessage)*中的。

### `SendMessage`
<a name="sqs_SendMessage_javascript_2_topic"></a>

以下代码示例演示了如何使用 `SendMessage`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/sqs#code-examples)中查找完整示例，了解如何进行设置和运行。
向 Amazon SQS 队列发送消息。  

```
// Load the AWS SDK for Node.js
var AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

// Create an SQS service object
var sqs = new AWS.SQS({ apiVersion: "2012-11-05" });

var params = {
  // Remove DelaySeconds parameter and value for FIFO queues
  DelaySeconds: 10,
  MessageAttributes: {
    Title: {
      DataType: "String",
      StringValue: "The Whistler",
    },
    Author: {
      DataType: "String",
      StringValue: "John Grisham",
    },
    WeeksOn: {
      DataType: "Number",
      StringValue: "6",
    },
  },
  MessageBody:
    "Information about current NY Times fiction bestseller for week of 12/11/2016.",
  // MessageDeduplicationId: "TheWhistler",  // Required for FIFO queues
  // MessageGroupId: "Group1",  // Required for FIFO queues
  QueueUrl: "SQS_QUEUE_URL",
};

sqs.sendMessage(params, function (err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data.MessageId);
  }
});
```
+  有关更多信息，请参阅《适用于 JavaScript 的 AWS SDK 开发人员指南》[https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/sqs-examples-send-receive-messages.html#sqs-examples-send-receive-messages-sending](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/sqs-examples-send-receive-messages.html#sqs-examples-send-receive-messages-sending)。
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[SendMessage](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/sqs-2012-11-05/SendMessage)*中的。

# AWS STS 使用适用于 JavaScript (v2) 的 SDK 的示例
<a name="javascript_2_sts_code_examples"></a>

以下代码示例向您展示了如何通过使用 适用于 JavaScript 的 AWS SDK (v2) 来执行操作和实现常见场景。 AWS STS

*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。

每个示例都包含一个指向完整源代码的链接，您可以从中找到有关如何在上下文中设置和运行代码的说明。

**Topics**
+ [操作](#actions)

## 操作
<a name="actions"></a>

### `AssumeRole`
<a name="sts_AssumeRole_javascript_2_topic"></a>

以下代码示例演示了如何使用 `AssumeRole`。

**适用于 JavaScript (v2) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/sts#code-examples)中查找完整示例，了解如何进行设置和运行。

```
// Load the AWS SDK for Node.js
const AWS = require("aws-sdk");
// Set the region
AWS.config.update({ region: "REGION" });

var roleToAssume = {
  RoleArn: "arn:aws:iam::123456789012:role/RoleName",
  RoleSessionName: "session1",
  DurationSeconds: 900,
};
var roleCreds;

// Create the STS service object
var sts = new AWS.STS({ apiVersion: "2011-06-15" });

//Assume Role
sts.assumeRole(roleToAssume, function (err, data) {
  if (err) console.log(err, err.stack);
  else {
    roleCreds = {
      accessKeyId: data.Credentials.AccessKeyId,
      secretAccessKey: data.Credentials.SecretAccessKey,
      sessionToken: data.Credentials.SessionToken,
    };
    stsGetCallerIdentity(roleCreds);
  }
});

//Get Arn of current identity
function stsGetCallerIdentity(creds) {
  var stsParams = { credentials: creds };
  // Create STS service object
  var sts = new AWS.STS(stsParams);

  sts.getCallerIdentity({}, function (err, data) {
    if (err) {
      console.log(err, err.stack);
    } else {
      console.log(data.Arn);
    }
  });
}
```
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[AssumeRole](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/sts-2011-06-15/AssumeRole)*中的。