There are more AWS SDK examples available in the [AWS Doc SDK Examples](https://github.com/awsdocs/aws-doc-sdk-examples) GitHub repo.

# Actions for CloudWatch using AWS SDKs
<a name="cloudwatch_code_examples_actions"></a>

The following code examples demonstrate how to perform individual CloudWatch actions with AWS SDKs. Each example includes a link to GitHub, where you can find instructions for setting up and running the code. 

These excerpts call the CloudWatch API and are code excerpts from larger programs that must be run in context. You can see actions in context in [Scenarios for CloudWatch using AWS SDKs](cloudwatch_code_examples_scenarios.md). 

 The following examples include only the most commonly used actions. For a complete list, see the [Amazon CloudWatch API Reference](https://docs.aws.amazon.com/AmazonCloudWatch/latest/APIReference/Welcome.html). 

**Topics**
+ [`DeleteAlarms`](cloudwatch_example_cloudwatch_DeleteAlarms_section.md)
+ [`DeleteAnomalyDetector`](cloudwatch_example_cloudwatch_DeleteAnomalyDetector_section.md)
+ [`DeleteDashboards`](cloudwatch_example_cloudwatch_DeleteDashboards_section.md)
+ [`DescribeAlarmHistory`](cloudwatch_example_cloudwatch_DescribeAlarmHistory_section.md)
+ [`DescribeAlarms`](cloudwatch_example_cloudwatch_DescribeAlarms_section.md)
+ [`DescribeAlarmsForMetric`](cloudwatch_example_cloudwatch_DescribeAlarmsForMetric_section.md)
+ [`DescribeAnomalyDetectors`](cloudwatch_example_cloudwatch_DescribeAnomalyDetectors_section.md)
+ [`DisableAlarmActions`](cloudwatch_example_cloudwatch_DisableAlarmActions_section.md)
+ [`EnableAlarmActions`](cloudwatch_example_cloudwatch_EnableAlarmActions_section.md)
+ [`GetDashboard`](cloudwatch_example_cloudwatch_GetDashboard_section.md)
+ [`GetMetricData`](cloudwatch_example_cloudwatch_GetMetricData_section.md)
+ [`GetMetricStatistics`](cloudwatch_example_cloudwatch_GetMetricStatistics_section.md)
+ [`GetMetricWidgetImage`](cloudwatch_example_cloudwatch_GetMetricWidgetImage_section.md)
+ [`ListDashboards`](cloudwatch_example_cloudwatch_ListDashboards_section.md)
+ [`ListMetrics`](cloudwatch_example_cloudwatch_ListMetrics_section.md)
+ [`PutAnomalyDetector`](cloudwatch_example_cloudwatch_PutAnomalyDetector_section.md)
+ [`PutDashboard`](cloudwatch_example_cloudwatch_PutDashboard_section.md)
+ [`PutMetricAlarm`](cloudwatch_example_cloudwatch_PutMetricAlarm_section.md)
+ [`PutMetricData`](cloudwatch_example_cloudwatch_PutMetricData_section.md)

# Use `DeleteAlarms` with an AWS SDK or CLI
<a name="cloudwatch_example_cloudwatch_DeleteAlarms_section"></a>

The following code examples show how to use `DeleteAlarms`.

Action examples are code excerpts from larger programs and must be run in context. You can see this action in context in the following code examples: 
+  [Learn the basics](cloudwatch_example_cloudwatch_GetStartedMetricsDashboardsAlarms_section.md) 
+  [Get started with alarms](cloudwatch_example_cloudwatch_Scenario_GettingStarted_section.md) 
+  [Manage metrics and alarms](cloudwatch_example_cloudwatch_Usage_MetricsAlarms_section.md) 
+  [Run CPU stress tests on EC2 instances using FIS](cloudwatch_example_iam_GettingStarted_069_section.md) 

------
#### [ .NET ]

**SDK for .NET (v4)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/CloudWatch#code-examples). 

```
    /// <summary>
    /// Delete a list of alarms from CloudWatch.
    /// </summary>
    /// <param name="alarmNames">A list of names of alarms to delete.</param>
    /// <returns>True if successful.</returns>
    public async Task<bool> DeleteAlarms(List<string> alarmNames)
    {
        var deleteAlarmsResult = await _amazonCloudWatch.DeleteAlarmsAsync(
            new DeleteAlarmsRequest()
            {
                AlarmNames = alarmNames
            });

        return deleteAlarmsResult.HttpStatusCode == HttpStatusCode.OK;
    }
```
+  For API details, see [DeleteAlarms](https://docs.aws.amazon.com/goto/DotNetSDKV4/monitoring-2010-08-01/DeleteAlarms) in *AWS SDK for .NET API Reference*. 

------
#### [ C\$1\$1 ]

**SDK for C\$1\$1**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/cpp/example_code/cloudwatch#code-examples). 
Include the required files.  

```
#include <aws/core/Aws.h>
#include <aws/monitoring/CloudWatchClient.h>
#include <aws/monitoring/model/DeleteAlarmsRequest.h>
#include <iostream>
```
Delete the alarm.  

```
        Aws::CloudWatch::CloudWatchClient cw;
        Aws::CloudWatch::Model::DeleteAlarmsRequest request;
        request.AddAlarmNames(alarm_name);

        auto outcome = cw.DeleteAlarms(request);
        if (!outcome.IsSuccess())
        {
            std::cout << "Failed to delete CloudWatch alarm:" <<
                outcome.GetError().GetMessage() << std::endl;
        }
        else
        {
            std::cout << "Successfully deleted CloudWatch alarm " << alarm_name
                << std::endl;
        }
```
+  For API details, see [DeleteAlarms](https://docs.aws.amazon.com/goto/SdkForCpp/monitoring-2010-08-01/DeleteAlarms) in *AWS SDK for C\$1\$1 API Reference*. 

------
#### [ CLI ]

**AWS CLI**  
**To delete an alarm**  
The following example uses the `delete-alarms` command to delete the Amazon CloudWatch alarm named "myalarm":  

```
aws cloudwatch delete-alarms --alarm-names myalarm
```
Output:  

```
This command returns to the prompt if successful.
```
+  For API details, see [DeleteAlarms](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/cloudwatch/delete-alarms.html) in *AWS CLI Command Reference*. 

------
#### [ Java ]

**SDK for Java 2.x**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/cloudwatch#code-examples). 

```
    /**
     * Deletes a CloudWatch alarm.
     *
     * @param alarmName the name of the alarm to be deleted
     * @return a {@link CompletableFuture} representing the asynchronous operation to delete the alarm
     * the {@link DeleteAlarmsResponse} is returned when the operation completes successfully,
     * or a {@link RuntimeException} is thrown if the operation fails
     */
    public CompletableFuture<DeleteAlarmsResponse> deleteCWAlarmAsync(String alarmName) {
        DeleteAlarmsRequest request = DeleteAlarmsRequest.builder()
            .alarmNames(alarmName)
            .build();

        return getAsyncClient().deleteAlarms(request)
            .whenComplete((response, exception) -> {
                if (exception != null) {
                    throw new RuntimeException("Failed to delete the alarm:{} " + alarmName, exception);
                } else {
                    logger.info("Successfully deleted alarm {} ", alarmName);
                }
            });
    }
```
+  For API details, see [DeleteAlarms](https://docs.aws.amazon.com/goto/SdkForJavaV2/monitoring-2010-08-01/DeleteAlarms) in *AWS SDK for Java 2.x API Reference*. 

------
#### [ JavaScript ]

**SDK for JavaScript (v3)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascriptv3/example_code/cloudwatch#code-examples). 
Import the SDK and client modules and call the API.  

```
import { DeleteAlarmsCommand } from "@aws-sdk/client-cloudwatch";
import { client } from "../libs/client.js";

const run = async () => {
  const command = new DeleteAlarmsCommand({
    AlarmNames: [process.env.CLOUDWATCH_ALARM_NAME], // Set the value of CLOUDWATCH_ALARM_NAME to the name of an existing alarm.
  });

  try {
    return await client.send(command);
  } catch (err) {
    console.error(err);
  }
};

export default run();
```
Create the client in a separate module and export it.  

```
import { CloudWatchClient } from "@aws-sdk/client-cloudwatch";

export const client = new CloudWatchClient({});
```
+  For more information, see [AWS SDK for JavaScript Developer Guide](https://docs.aws.amazon.com/sdk-for-javascript/v3/developer-guide/cloudwatch-examples-creating-alarms.html#cloudwatch-examples-creating-alarms-deleting). 
+  For API details, see [DeleteAlarms](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/client/cloudwatch/command/DeleteAlarmsCommand) in *AWS SDK for JavaScript API Reference*. 

**SDK for JavaScript (v2)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/cloudwatch#code-examples). 
Import the SDK and client modules and call the 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);
  }
});
```
+  For more information, see [AWS SDK for JavaScript Developer Guide](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-creating-alarms.html#cloudwatch-examples-creating-alarms-deleting). 
+  For API details, see [DeleteAlarms](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/monitoring-2010-08-01/DeleteAlarms) in *AWS SDK for JavaScript API Reference*. 

------
#### [ Kotlin ]

**SDK for Kotlin**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/cloudwatch#code-examples). 

```
suspend fun deleteAlarm(alarmNameVal: String) {
    val request =
        DeleteAlarmsRequest {
            alarmNames = listOf(alarmNameVal)
        }

    CloudWatchClient.fromEnvironment { region = "us-east-1" }.use { cwClient ->
        cwClient.deleteAlarms(request)
        println("Successfully deleted alarm $alarmNameVal")
    }
}
```
+  For API details, see [DeleteAlarms](https://sdk.amazonaws.com/kotlin/api/latest/index.html) in *AWS SDK for Kotlin API reference*. 

------
#### [ Python ]

**SDK for Python (Boto3)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/cloudwatch#code-examples). 

```
class CloudWatchWrapper:
    """Encapsulates Amazon CloudWatch functions."""

    def __init__(self, cloudwatch_resource):
        """
        :param cloudwatch_resource: A Boto3 CloudWatch resource.
        """
        self.cloudwatch_resource = cloudwatch_resource


    def delete_metric_alarms(self, metric_namespace, metric_name):
        """
        Deletes all of the alarms that are currently watching the specified metric.

        :param metric_namespace: The namespace of the metric.
        :param metric_name: The name of the metric.
        """
        try:
            metric = self.cloudwatch_resource.Metric(metric_namespace, metric_name)
            metric.alarms.delete()
            logger.info(
                "Deleted alarms for metric %s.%s.", metric_namespace, metric_name
            )
        except ClientError:
            logger.exception(
                "Couldn't delete alarms for metric %s.%s.",
                metric_namespace,
                metric_name,
            )
            raise
```
+  For API details, see [DeleteAlarms](https://docs.aws.amazon.com/goto/boto3/monitoring-2010-08-01/DeleteAlarms) in *AWS SDK for Python (Boto3) API Reference*. 

------
#### [ SAP ABAP ]

**SDK for SAP ABAP**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/cwt#code-examples). 

```
    TRY.
        lo_cwt->deletealarms(
          it_alarmnames = it_alarm_names ).
        MESSAGE 'Alarms deleted.' TYPE 'I'.
      CATCH /aws1/cx_cwtresourcenotfound.
        MESSAGE 'Resource being accessed is not found.' TYPE 'E'.
    ENDTRY.
```
+  For API details, see [DeleteAlarms](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html) in *AWS SDK for SAP ABAP API reference*. 

------

# Use `DeleteAnomalyDetector` with an AWS SDK or CLI
<a name="cloudwatch_example_cloudwatch_DeleteAnomalyDetector_section"></a>

The following code examples show how to use `DeleteAnomalyDetector`.

Action examples are code excerpts from larger programs and must be run in context. You can see this action in context in the following code example: 
+  [Learn the basics](cloudwatch_example_cloudwatch_GetStartedMetricsDashboardsAlarms_section.md) 

------
#### [ .NET ]

**SDK for .NET (v4)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/CloudWatch#code-examples). 

```
    /// <summary>
    /// Delete a single metric anomaly detector.
    /// </summary>
    /// <param name="anomalyDetector">The anomaly detector to delete.</param>
    /// <returns>True if successful.</returns>
    public async Task<bool> DeleteAnomalyDetector(SingleMetricAnomalyDetector anomalyDetector)
    {
        var deleteAnomalyDetectorResponse = await _amazonCloudWatch.DeleteAnomalyDetectorAsync(
            new DeleteAnomalyDetectorRequest()
            {
                SingleMetricAnomalyDetector = anomalyDetector
            });

        return deleteAnomalyDetectorResponse.HttpStatusCode == HttpStatusCode.OK;
    }
```
+  For API details, see [DeleteAnomalyDetector](https://docs.aws.amazon.com/goto/DotNetSDKV4/monitoring-2010-08-01/DeleteAnomalyDetector) in *AWS SDK for .NET API Reference*. 

------
#### [ CLI ]

**AWS CLI**  
**To delete a specified anomaly detection model**  
The following `delete-anomaly-detector` example deletes an anomaly detector model in the specified account.  

```
aws cloudwatch delete-anomaly-detector \
    --namespace AWS/Logs \
    --metric-name IncomingBytes \
    --stat SampleCount
```
This command produces no output.  
For more information, see [Deleting an anomaly detection model](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/Create_Anomaly_Detection_Alarm.html#Delete_Anomaly_Detection_Model) in the *Amazon CloudWatch User Guide*.  
+  For API details, see [DeleteAnomalyDetector](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/cloudwatch/delete-anomaly-detector.html) in *AWS CLI Command Reference*. 

------
#### [ Java ]

**SDK for Java 2.x**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/cloudwatch#code-examples). 

```
    /**
     * Deletes an Anomaly Detector.
     *
     * @param fileName the name of the file containing the Anomaly Detector configuration
     * @return a CompletableFuture that represents the asynchronous deletion of the Anomaly Detector
     */
    public CompletableFuture<DeleteAnomalyDetectorResponse> deleteAnomalyDetectorAsync(String fileName) {
        CompletableFuture<JsonNode> readFileFuture = CompletableFuture.supplyAsync(() -> {
            try {
                JsonParser parser = new JsonFactory().createParser(new File(fileName));
                return new ObjectMapper().readTree(parser); // Return the root node
            } catch (IOException e) {
                throw new RuntimeException("Failed to read or parse the file", e);
            }
        });

        return readFileFuture.thenCompose(rootNode -> {
            String customMetricNamespace = rootNode.findValue("customMetricNamespace").asText();
            String customMetricName = rootNode.findValue("customMetricName").asText();

            SingleMetricAnomalyDetector singleMetricAnomalyDetector = SingleMetricAnomalyDetector.builder()
                .metricName(customMetricName)
                .namespace(customMetricNamespace)
                .stat("Maximum")
                .build();

            DeleteAnomalyDetectorRequest request = DeleteAnomalyDetectorRequest.builder()
                .singleMetricAnomalyDetector(singleMetricAnomalyDetector)
                .build();

            return getAsyncClient().deleteAnomalyDetector(request);
        }).whenComplete((result, exception) -> {
            if (exception != null) {
                throw new RuntimeException("Failed to delete the Anomaly Detector", exception);
            } else {
                logger.info("Successfully deleted the Anomaly Detector.");
            }
        });
    }
```
+  For API details, see [DeleteAnomalyDetector](https://docs.aws.amazon.com/goto/SdkForJavaV2/monitoring-2010-08-01/DeleteAnomalyDetector) in *AWS SDK for Java 2.x API Reference*. 

------
#### [ Kotlin ]

**SDK for Kotlin**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/cloudwatch#code-examples). 

```
suspend fun deleteAnomalyDetector(fileName: String) {
    // Read values from the JSON file.
    val parser = JsonFactory().createParser(File(fileName))
    val rootNode = ObjectMapper().readTree<JsonNode>(parser)
    val customMetricNamespace = rootNode.findValue("customMetricNamespace").asText()
    val customMetricName = rootNode.findValue("customMetricName").asText()

    val singleMetricAnomalyDetectorVal =
        SingleMetricAnomalyDetector {
            metricName = customMetricName
            namespace = customMetricNamespace
            stat = "Maximum"
        }

    val request =
        DeleteAnomalyDetectorRequest {
            singleMetricAnomalyDetector = singleMetricAnomalyDetectorVal
        }

    CloudWatchClient.fromEnvironment { region = "us-east-1" }.use { cwClient ->
        cwClient.deleteAnomalyDetector(request)
        println("Successfully deleted the Anomaly Detector.")
    }
}
```
+  For API details, see [DeleteAnomalyDetector](https://sdk.amazonaws.com/kotlin/api/latest/index.html) in *AWS SDK for Kotlin API reference*. 

------

# Use `DeleteDashboards` with an AWS SDK or CLI
<a name="cloudwatch_example_cloudwatch_DeleteDashboards_section"></a>

The following code examples show how to use `DeleteDashboards`.

Action examples are code excerpts from larger programs and must be run in context. You can see this action in context in the following code examples: 
+  [Learn the basics](cloudwatch_example_cloudwatch_GetStartedMetricsDashboardsAlarms_section.md) 
+  [Creating a CloudWatch dashboard with function name as a variable](cloudwatch_example_cloudwatch_GettingStarted_031_section.md) 
+  [Using property variables in CloudWatch dashboards to monitor multiple Lambda functions](cloudwatch_example_iam_GettingStarted_032_section.md) 

------
#### [ .NET ]

**SDK for .NET (v4)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/CloudWatch#code-examples). 

```
    /// <summary>
    /// Delete a list of CloudWatch dashboards.
    /// </summary>
    /// <param name="dashboardNames">List of dashboard names to delete.</param>
    /// <returns>True if successful.</returns>
    public async Task<bool> DeleteDashboards(List<string> dashboardNames)
    {
        var deleteDashboardsResponse = await _amazonCloudWatch.DeleteDashboardsAsync(
            new DeleteDashboardsRequest()
            {
                DashboardNames = dashboardNames
            });

        return deleteDashboardsResponse.HttpStatusCode == HttpStatusCode.OK;
    }
```
+  For API details, see [DeleteDashboards](https://docs.aws.amazon.com/goto/DotNetSDKV4/monitoring-2010-08-01/DeleteDashboards) in *AWS SDK for .NET API Reference*. 

------
#### [ CLI ]

**AWS CLI**  
**To delete specified dashboards**  
The following `delete-dashboards` example deletes two dashboards named `Dashboard-A` and `Dashboard-B` in the specified account.  

```
aws cloudwatch delete-dashboards \
    --dashboard-names Dashboard-A Dashboard-B
```
This command produces no output.  
For more information, see [Amazon CloudWatch dashboards](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/CloudWatch_Dashboards.html) in the *Amazon CloudWatch User Guide*.  
+  For API details, see [DeleteDashboards](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/cloudwatch/delete-dashboards.html) in *AWS CLI Command Reference*. 

------
#### [ Java ]

**SDK for Java 2.x**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/cloudwatch#code-examples). 

```
    /**
     * Deletes the specified dashboard.
     *
     * @param dashboardName the name of the dashboard to be deleted
     * @return a {@link CompletableFuture} representing the asynchronous operation of deleting the dashboard
     * @throws RuntimeException if the dashboard deletion fails
     */
    public CompletableFuture<DeleteDashboardsResponse> deleteDashboardAsync(String dashboardName) {
        DeleteDashboardsRequest dashboardsRequest = DeleteDashboardsRequest.builder()
            .dashboardNames(dashboardName)
            .build();

        return getAsyncClient().deleteDashboards(dashboardsRequest)
            .whenComplete((response, exception) -> {
                if (exception != null) {
                    throw new RuntimeException("Failed to delete the dashboard: " + dashboardName, exception);
                } else {
                    logger.info("{} was successfully deleted.", dashboardName);
                }
            });
    }
```
+  For API details, see [DeleteDashboards](https://docs.aws.amazon.com/goto/SdkForJavaV2/monitoring-2010-08-01/DeleteDashboards) in *AWS SDK for Java 2.x API Reference*. 

------
#### [ Kotlin ]

**SDK for Kotlin**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/cloudwatch#code-examples). 

```
suspend fun deleteDashboard(dashboardName: String) {
    val dashboardsRequest =
        DeleteDashboardsRequest {
            dashboardNames = listOf(dashboardName)
        }
    CloudWatchClient.fromEnvironment { region = "us-east-1" }.use { cwClient ->
        cwClient.deleteDashboards(dashboardsRequest)
        println("$dashboardName was successfully deleted.")
    }
}
```
+  For API details, see [DeleteDashboards](https://sdk.amazonaws.com/kotlin/api/latest/index.html) in *AWS SDK for Kotlin API reference*. 

------
#### [ PowerShell ]

**Tools for PowerShell V4**  
**Example 1: Deletes the specified dashboard, promoting for confirmation before proceeding. To bypass confirmation add the -Force switch to the command.**  

```
Remove-CWDashboard -DashboardName Dashboard1
```
+  For API details, see [DeleteDashboards](https://docs.aws.amazon.com/powershell/v4/reference) in *AWS Tools for PowerShell Cmdlet Reference (V4)*. 

**Tools for PowerShell V5**  
**Example 1: Deletes the specified dashboard, promoting for confirmation before proceeding. To bypass confirmation add the -Force switch to the command.**  

```
Remove-CWDashboard -DashboardName Dashboard1
```
+  For API details, see [DeleteDashboards](https://docs.aws.amazon.com/powershell/v5/reference) in *AWS Tools for PowerShell Cmdlet Reference (V5)*. 

------

# Use `DescribeAlarmHistory` with an AWS SDK or CLI
<a name="cloudwatch_example_cloudwatch_DescribeAlarmHistory_section"></a>

The following code examples show how to use `DescribeAlarmHistory`.

Action examples are code excerpts from larger programs and must be run in context. You can see this action in context in the following code example: 
+  [Learn the basics](cloudwatch_example_cloudwatch_GetStartedMetricsDashboardsAlarms_section.md) 

------
#### [ .NET ]

**SDK for .NET (v4)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/CloudWatch#code-examples). 

```
    /// <summary>
    /// Describe the history of an alarm for a number of days in the past.
    /// </summary>
    /// <param name="alarmName">The name of the alarm.</param>
    /// <param name="historyDays">The number of days in the past.</param>
    /// <returns>The list of alarm history data.</returns>
    public async Task<List<AlarmHistoryItem>> DescribeAlarmHistory(string alarmName, int historyDays)
    {
        List<AlarmHistoryItem> alarmHistory = new List<AlarmHistoryItem>();
        var paginatedAlarmHistory = _amazonCloudWatch.Paginators.DescribeAlarmHistory(
            new DescribeAlarmHistoryRequest()
            {
                AlarmName = alarmName,
                EndDateUtc = DateTime.UtcNow,
                HistoryItemType = HistoryItemType.StateUpdate,
                StartDateUtc = DateTime.UtcNow.AddDays(-historyDays)
            });

        await foreach (var data in paginatedAlarmHistory.AlarmHistoryItems)
        {
            alarmHistory.Add(data);
        }
        return alarmHistory;
    }
```
+  For API details, see [DescribeAlarmHistory](https://docs.aws.amazon.com/goto/DotNetSDKV4/monitoring-2010-08-01/DescribeAlarmHistory) in *AWS SDK for .NET API Reference*. 

------
#### [ CLI ]

**AWS CLI**  
**To retrieve history for an alarm**  
The following example uses the `describe-alarm-history` command to retrieve history for the Amazon CloudWatch alarm named "myalarm":  

```
aws cloudwatch describe-alarm-history --alarm-name "myalarm" --history-item-type StateUpdate
```
Output:  

```
{
    "AlarmHistoryItems": [
        {
            "Timestamp": "2014-04-09T18:59:06.442Z",
            "HistoryItemType": "StateUpdate",
            "AlarmName": "myalarm",
            "HistoryData": "{\"version\":\"1.0\",\"oldState\":{\"stateValue\":\"ALARM\",\"stateReason\":\"testing purposes\"},\"newState\":{\"stateValue\":\"OK\",\"stateReason\":\"Threshold Crossed: 2 datapoints were not greater than the threshold (70.0). The most recent datapoints: [38.958, 40.292].\",\"stateReasonData\":{\"version\":\"1.0\",\"queryDate\":\"2014-04-09T18:59:06.419+0000\",\"startDate\":\"2014-04-09T18:44:00.000+0000\",\"statistic\":\"Average\",\"period\":300,\"recentDatapoints\":[38.958,40.292],\"threshold\":70.0}}}",
            "HistorySummary": "Alarm updated from ALARM to OK"
        },
        {
            "Timestamp": "2014-04-09T18:59:05.805Z",
            "HistoryItemType": "StateUpdate",
            "AlarmName": "myalarm",
            "HistoryData": "{\"version\":\"1.0\",\"oldState\":{\"stateValue\":\"OK\",\"stateReason\":\"Threshold Crossed: 2 datapoints were not greater than the threshold (70.0). The most recent datapoints: [38.839999999999996, 39.714].\",\"stateReasonData\":{\"version\":\"1.0\",\"queryDate\":\"2014-03-11T22:45:41.569+0000\",\"startDate\":\"2014-03-11T22:30:00.000+0000\",\"statistic\":\"Average\",\"period\":300,\"recentDatapoints\":[38.839999999999996,39.714],\"threshold\":70.0}},\"newState\":{\"stateValue\":\"ALARM\",\"stateReason\":\"testing purposes\"}}",
            "HistorySummary": "Alarm updated from OK to ALARM"
        }
    ]
}
```
+  For API details, see [DescribeAlarmHistory](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/cloudwatch/describe-alarm-history.html) in *AWS CLI Command Reference*. 

------
#### [ Java ]

**SDK for Java 2.x**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/cloudwatch#code-examples). 

```
    /**
     * Retrieves the alarm history for a given alarm name and date range.
     *
     * @param fileName the path to the JSON file containing the alarm name
     * @param date     the date to start the alarm history search (in the format "yyyy-MM-dd'T'HH:mm:ss'Z'")
     * @return a {@code CompletableFuture<Void>} that completes when the alarm history has been retrieved and processed
     */
    public CompletableFuture<Void> getAlarmHistoryAsync(String fileName, String date) {
        CompletableFuture<String> readFileFuture = CompletableFuture.supplyAsync(() -> {
            try {
                JsonParser parser = new JsonFactory().createParser(new File(fileName));
                com.fasterxml.jackson.databind.JsonNode rootNode = new ObjectMapper().readTree(parser);
                return rootNode.findValue("exampleAlarmName").asText(); // Return alarmName from the JSON file
            } catch (IOException e) {
                throw new RuntimeException("Failed to read or parse the file", e);
            }
        });

        // Use the alarm name to describe alarm history with a paginator.
        return readFileFuture.thenCompose(alarmName -> {
            try {
                Instant start = Instant.parse(date);
                Instant endDate = Instant.now();
                DescribeAlarmHistoryRequest historyRequest = DescribeAlarmHistoryRequest.builder()
                    .startDate(start)
                    .endDate(endDate)
                    .alarmName(alarmName)
                    .historyItemType(HistoryItemType.ACTION)
                    .build();

                // Use the paginator to paginate through alarm history pages.
                DescribeAlarmHistoryPublisher historyPublisher = getAsyncClient().describeAlarmHistoryPaginator(historyRequest);
                CompletableFuture<Void> future = historyPublisher
                    .subscribe(response -> response.alarmHistoryItems().forEach(item -> {
                        logger.info("History summary: {}", item.historySummary());
                        logger.info("Timestamp: {}", item.timestamp());
                    }))
                    .whenComplete((result, exception) -> {
                        if (exception != null) {
                            logger.error("Error occurred while getting alarm history: " + exception.getMessage(), exception);
                        } else {
                            logger.info("Successfully retrieved all alarm history.");
                        }
                    });

                // Return the future to the calling code for further handling
                return future;
            } catch (Exception e) {
                throw new RuntimeException("Failed to process alarm history", e);
            }
        }).whenComplete((result, exception) -> {
            if (exception != null) {
                throw new RuntimeException("Error completing alarm history processing", exception);
            }
        });
    }
```
+  For API details, see [DescribeAlarmHistory](https://docs.aws.amazon.com/goto/SdkForJavaV2/monitoring-2010-08-01/DescribeAlarmHistory) in *AWS SDK for Java 2.x API Reference*. 

------
#### [ Kotlin ]

**SDK for Kotlin**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/cloudwatch#code-examples). 

```
suspend fun getAlarmHistory(
    fileName: String,
    date: String,
) {
    // Read values from the JSON file.
    val parser = JsonFactory().createParser(File(fileName))
    val rootNode = ObjectMapper().readTree<JsonNode>(parser)
    val alarmNameVal = rootNode.findValue("exampleAlarmName").asText()
    val start = Instant.parse(date)
    val endDateVal = Instant.now()

    val historyRequest =
        DescribeAlarmHistoryRequest {
            startDate =
                aws.smithy.kotlin.runtime.time
                    .Instant(start)
            endDate =
                aws.smithy.kotlin.runtime.time
                    .Instant(endDateVal)
            alarmName = alarmNameVal
            historyItemType = HistoryItemType.Action
        }

    CloudWatchClient.fromEnvironment { region = "us-east-1" }.use { cwClient ->
        val response = cwClient.describeAlarmHistory(historyRequest)
        val historyItems = response.alarmHistoryItems
        if (historyItems != null) {
            if (historyItems.isEmpty()) {
                println("No alarm history data found for $alarmNameVal.")
            } else {
                for (item in historyItems) {
                    println("History summary ${item.historySummary}")
                    println("Time stamp: ${item.timestamp}")
                }
            }
        }
    }
}
```
+  For API details, see [DescribeAlarmHistory](https://sdk.amazonaws.com/kotlin/api/latest/index.html) in *AWS SDK for Kotlin API reference*. 

------

# Use `DescribeAlarms` with an AWS SDK or CLI
<a name="cloudwatch_example_cloudwatch_DescribeAlarms_section"></a>

The following code examples show how to use `DescribeAlarms`.

Action examples are code excerpts from larger programs and must be run in context. You can see this action in context in the following code examples: 
+  [Learn the basics](cloudwatch_example_cloudwatch_GetStartedMetricsDashboardsAlarms_section.md) 
+  [Get started with alarms](cloudwatch_example_cloudwatch_Scenario_GettingStarted_section.md) 
+  [Run CPU stress tests on EC2 instances using FIS](cloudwatch_example_iam_GettingStarted_069_section.md) 

------
#### [ .NET ]

**SDK for .NET (v4)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/CloudWatch#code-examples). 

```
    /// <summary>
    /// Describe the current alarms, optionally filtered by state.
    /// </summary>
    /// <param name="stateValue">Optional filter for alarm state.</param>
    /// <returns>The list of alarm data.</returns>
    public async Task<List<MetricAlarm>> DescribeAlarms(StateValue? stateValue = null)
    {
        List<MetricAlarm> alarms = new List<MetricAlarm>();
        var paginatedDescribeAlarms = _amazonCloudWatch.Paginators.DescribeAlarms(
            new DescribeAlarmsRequest()
            {
                StateValue = stateValue
            });

        await foreach (var data in paginatedDescribeAlarms.MetricAlarms)
        {
            alarms.Add(data);
        }
        return alarms;
    }
```
+  For API details, see [DescribeAlarms](https://docs.aws.amazon.com/goto/DotNetSDKV4/monitoring-2010-08-01/DescribeAlarms) in *AWS SDK for .NET API Reference*. 

------
#### [ CLI ]

**AWS CLI**  
**To list information about an alarm**  
The following example uses the `describe-alarms` command to provide information about the alarm named "myalarm":  

```
aws cloudwatch describe-alarms --alarm-names "myalarm"
```
Output:  

```
{
    "MetricAlarms": [
        {
            "EvaluationPeriods": 2,
            "AlarmArn": "arn:aws:cloudwatch:us-east-1:123456789012:alarm:myalarm",
            "StateUpdatedTimestamp": "2014-04-09T18:59:06.442Z",
            "AlarmConfigurationUpdatedTimestamp": "2012-12-27T00:49:54.032Z",
            "ComparisonOperator": "GreaterThanThreshold",
            "AlarmActions": [
                "arn:aws:sns:us-east-1:123456789012:myHighCpuAlarm"
            ],
            "Namespace": "AWS/EC2",
            "AlarmDescription": "CPU usage exceeds 70 percent",
            "StateReasonData": "{\"version\":\"1.0\",\"queryDate\":\"2014-04-09T18:59:06.419+0000\",\"startDate\":\"2014-04-09T18:44:00.000+0000\",\"statistic\":\"Average\",\"period\":300,\"recentDatapoints\":[38.958,40.292],\"threshold\":70.0}",
            "Period": 300,
            "StateValue": "OK",
            "Threshold": 70.0,
            "AlarmName": "myalarm",
            "Dimensions": [
                {
                    "Name": "InstanceId",
                    "Value": "i-0c986c72"
                }
            ],
            "Statistic": "Average",
            "StateReason": "Threshold Crossed: 2 datapoints were not greater than the threshold (70.0). The most recent datapoints: [38.958, 40.292].",
            "InsufficientDataActions": [],
            "OKActions": [],
            "ActionsEnabled": true,
            "MetricName": "CPUUtilization"
        }
    ]
}
```
+  For API details, see [DescribeAlarms](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/cloudwatch/describe-alarms.html) in *AWS CLI Command Reference*. 

------
#### [ Java ]

**SDK for Java 2.x**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/cloudwatch#code-examples). 

```
    /**
     * Describes the CloudWatch alarms of the 'METRIC_ALARM' type.
     *
     * @return a {@link CompletableFuture} that represents the asynchronous operation
     * of describing the CloudWatch alarms. The future completes when the
     * operation is finished, either successfully or with an error.
     */
    public CompletableFuture<Void> describeAlarmsAsync() {
        List<AlarmType> typeList = new ArrayList<>();
        typeList.add(AlarmType.METRIC_ALARM);
        DescribeAlarmsRequest alarmsRequest = DescribeAlarmsRequest.builder()
            .alarmTypes(typeList)
            .maxRecords(10)
            .build();

        return getAsyncClient().describeAlarms(alarmsRequest)
            .thenAccept(response -> {
                List<MetricAlarm> alarmList = response.metricAlarms();
                for (MetricAlarm alarm : alarmList) {
                    logger.info("Alarm name: {}", alarm.alarmName());
                    logger.info("Alarm description: {} ", alarm.alarmDescription());
                }
            })
            .whenComplete((response, ex) -> {
                if (ex != null) {
                    logger.info("Failed to describe alarms: {}", ex.getMessage());
                } else {
                    logger.info("Successfully described alarms.");
                }
            });
    }
```
+  For API details, see [DescribeAlarms](https://docs.aws.amazon.com/goto/SdkForJavaV2/monitoring-2010-08-01/DescribeAlarms) in *AWS SDK for Java 2.x API Reference*. 

------
#### [ Kotlin ]

**SDK for Kotlin**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/cloudwatch#code-examples). 

```
suspend fun describeAlarms() {
    val typeList = ArrayList<AlarmType>()
    typeList.add(AlarmType.MetricAlarm)
    val alarmsRequest =
        DescribeAlarmsRequest {
            alarmTypes = typeList
            maxRecords = 10
        }

    CloudWatchClient.fromEnvironment { region = "us-east-1" }.use { cwClient ->
        val response = cwClient.describeAlarms(alarmsRequest)
        response.metricAlarms?.forEach { alarm ->
            println("Alarm name: ${alarm.alarmName}")
            println("Alarm description: ${alarm.alarmDescription}")
        }
    }
}
```
+  For API details, see [DescribeAlarms](https://sdk.amazonaws.com/kotlin/api/latest/index.html) in *AWS SDK for Kotlin API reference*. 

------
#### [ PowerShell ]

**Tools for PowerShell V4**  
**Example 1: Returns all the alarms including Composite and Metric Alarms from CloudWatch.**  

```
Get-CWAlarm -MaxRecords 1
```
**Output:**  

```
CompositeAlarms MetricAlarms         NextToken
--------------- ------------         ---------
                {MetricAlarms-01}    NextToken-01
                {MetricAlarms-02}    NextToken-02
                {MetricAlarms-03}    NextToken-03
```
**Example 2: Returns only the composite alarms data from CloudWatch after setting -AlarmType parameter to CompositeAlarms.**  

```
Get-CWAlarm -AlarmType 'CompositeAlarms'
```
**Output:**  

```
CompositeAlarms        MetricAlarms NextToken
---------------        ------------ ---------
{CompositeAlarms-01}
{CompositeAlarms-02}
{CompositeAlarms-03}
```
+  For API details, see [DescribeAlarms](https://docs.aws.amazon.com/powershell/v4/reference) in *AWS Tools for PowerShell Cmdlet Reference (V4)*. 

------
#### [ Ruby ]

**SDK for Ruby**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/cloudwatch#code-examples). 

```
require 'aws-sdk-cloudwatch'

# Lists the names of available Amazon CloudWatch alarms.
#
# @param cloudwatch_client [Aws::CloudWatch::Client]
#   An initialized CloudWatch client.
# @example
#   list_alarms(Aws::CloudWatch::Client.new(region: 'us-east-1'))
def list_alarms(cloudwatch_client)
  response = cloudwatch_client.describe_alarms
  if response.metric_alarms.count.positive?
    response.metric_alarms.each do |alarm|
      puts alarm.alarm_name
    end
  else
    puts 'No alarms found.'
  end
rescue StandardError => e
  puts "Error getting information about alarms: #{e.message}"
end
```
+  For API details, see [DescribeAlarms](https://docs.aws.amazon.com/goto/SdkForRubyV3/monitoring-2010-08-01/DescribeAlarms) in *AWS SDK for Ruby API Reference*. 

------
#### [ SAP ABAP ]

**SDK for SAP ABAP**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/cwt#code-examples). 

```
    TRY.
        oo_result = lo_cwt->describealarms(                 " oo_result is returned for testing purposes. "
          it_alarmnames = it_alarm_names ).
        MESSAGE 'Alarms retrieved.' TYPE 'I'.
      CATCH /aws1/cx_rt_service_generic INTO DATA(lo_exception).
        DATA(lv_error) = |"{ lo_exception->av_err_code }" - { lo_exception->av_err_msg }|.
        MESSAGE lv_error TYPE 'E'.
    ENDTRY.
```
+  For API details, see [DescribeAlarms](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html) in *AWS SDK for SAP ABAP API reference*. 

------

# Use `DescribeAlarmsForMetric` with an AWS SDK or CLI
<a name="cloudwatch_example_cloudwatch_DescribeAlarmsForMetric_section"></a>

The following code examples show how to use `DescribeAlarmsForMetric`.

Action examples are code excerpts from larger programs and must be run in context. You can see this action in context in the following code examples: 
+  [Learn the basics](cloudwatch_example_cloudwatch_GetStartedMetricsDashboardsAlarms_section.md) 
+  [Manage metrics and alarms](cloudwatch_example_cloudwatch_Usage_MetricsAlarms_section.md) 

------
#### [ .NET ]

**SDK for .NET (v4)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/CloudWatch#code-examples). 

```
    /// <summary>
    /// Describe the current alarms for a specific metric.
    /// </summary>
    /// <param name="metricNamespace">The namespace of the metric.</param>
    /// <param name="metricName">The name of the metric.</param>
    /// <returns>The list of alarm data.</returns>
    public async Task<List<MetricAlarm>> DescribeAlarmsForMetric(string metricNamespace, string metricName)
    {
        var alarmsResult = await _amazonCloudWatch.DescribeAlarmsForMetricAsync(
            new DescribeAlarmsForMetricRequest()
            {
                Namespace = metricNamespace,
                MetricName = metricName
            });

        return alarmsResult.MetricAlarms ?? new List<MetricAlarm>();
    }
```
+  For API details, see [DescribeAlarmsForMetric](https://docs.aws.amazon.com/goto/DotNetSDKV4/monitoring-2010-08-01/DescribeAlarmsForMetric) in *AWS SDK for .NET API Reference*. 

------
#### [ C\$1\$1 ]

**SDK for C\$1\$1**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/cpp/example_code/cloudwatch#code-examples). 
Include the required files.  

```
#include <aws/core/Aws.h>
#include <aws/monitoring/CloudWatchClient.h>
#include <aws/monitoring/model/DescribeAlarmsRequest.h>
#include <aws/monitoring/model/DescribeAlarmsResult.h>
#include <iomanip>
#include <iostream>
```
Describe the alarms.  

```
        Aws::CloudWatch::CloudWatchClient cw;
        Aws::CloudWatch::Model::DescribeAlarmsRequest request;
        request.SetMaxRecords(1);

        bool done = false;
        bool header = false;
        while (!done)
        {
            auto outcome = cw.DescribeAlarms(request);
            if (!outcome.IsSuccess())
            {
                std::cout << "Failed to describe CloudWatch alarms:" <<
                    outcome.GetError().GetMessage() << std::endl;
                break;
            }

            if (!header)
            {
                std::cout << std::left <<
                    std::setw(32) << "Name" <<
                    std::setw(64) << "Arn" <<
                    std::setw(64) << "Description" <<
                    std::setw(20) << "LastUpdated" <<
                    std::endl;
                header = true;
            }

            const auto &alarms = outcome.GetResult().GetMetricAlarms();
            for (const auto &alarm : alarms)
            {
                std::cout << std::left <<
                    std::setw(32) << alarm.GetAlarmName() <<
                    std::setw(64) << alarm.GetAlarmArn() <<
                    std::setw(64) << alarm.GetAlarmDescription() <<
                    std::setw(20) <<
                    alarm.GetAlarmConfigurationUpdatedTimestamp().ToGmtString(
                        SIMPLE_DATE_FORMAT_STR) <<
                    std::endl;
            }

            const auto &next_token = outcome.GetResult().GetNextToken();
            request.SetNextToken(next_token);
            done = next_token.empty();
        }
```
+  For API details, see [DescribeAlarmsForMetric](https://docs.aws.amazon.com/goto/SdkForCpp/monitoring-2010-08-01/DescribeAlarmsForMetric) in *AWS SDK for C\$1\$1 API Reference*. 

------
#### [ CLI ]

**AWS CLI**  
**To display information about alarms associated with a metric**  
The following example uses the `describe-alarms-for-metric` command to display information about any alarms associated with the Amazon EC2 CPUUtilization metric and the instance with the ID i-0c986c72.:  

```
aws cloudwatch describe-alarms-for-metric --metric-name CPUUtilization --namespace AWS/EC2 --dimensions Name=InstanceId,Value=i-0c986c72
```
Output:  

```
{
    "MetricAlarms": [
        {
            "EvaluationPeriods": 10,
            "AlarmArn": "arn:aws:cloudwatch:us-east-1:111122223333:alarm:myHighCpuAlarm2",
            "StateUpdatedTimestamp": "2013-10-30T03:03:51.479Z",
            "AlarmConfigurationUpdatedTimestamp": "2013-10-30T03:03:50.865Z",
            "ComparisonOperator": "GreaterThanOrEqualToThreshold",
            "AlarmActions": [
                "arn:aws:sns:us-east-1:111122223333:NotifyMe"
            ],
            "Namespace": "AWS/EC2",
            "AlarmDescription": "CPU usage exceeds 70 percent",
            "StateReasonData": "{\"version\":\"1.0\",\"queryDate\":\"2013-10-30T03:03:51.479+0000\",\"startDate\":\"2013-10-30T02:08:00.000+0000\",\"statistic\":\"Average\",\"period\":300,\"recentDatapoints\":[40.698,39.612,42.432,39.796,38.816,42.28,42.854,40.088,40.760000000000005,41.316],\"threshold\":70.0}",
            "Period": 300,
            "StateValue": "OK",
            "Threshold": 70.0,
            "AlarmName": "myHighCpuAlarm2",
            "Dimensions": [
                {
                    "Name": "InstanceId",
                    "Value": "i-0c986c72"
                }
            ],
            "Statistic": "Average",
            "StateReason": "Threshold Crossed: 10 datapoints were not greater than or equal to the threshold (70.0). The most recent datapoints: [40.760000000000005, 41.316].",
            "InsufficientDataActions": [],
            "OKActions": [],
            "ActionsEnabled": true,
            "MetricName": "CPUUtilization"
        },
        {
            "EvaluationPeriods": 2,
            "AlarmArn": "arn:aws:cloudwatch:us-east-1:111122223333:alarm:myHighCpuAlarm",
            "StateUpdatedTimestamp": "2014-04-09T18:59:06.442Z",
            "AlarmConfigurationUpdatedTimestamp": "2014-04-09T22:26:05.958Z",
            "ComparisonOperator": "GreaterThanThreshold",
            "AlarmActions": [
                "arn:aws:sns:us-east-1:111122223333:HighCPUAlarm"
            ],
            "Namespace": "AWS/EC2",
            "AlarmDescription": "CPU usage exceeds 70 percent",
            "StateReasonData": "{\"version\":\"1.0\",\"queryDate\":\"2014-04-09T18:59:06.419+0000\",\"startDate\":\"2014-04-09T18:44:00.000+0000\",\"statistic\":\"Average\",\"period\":300,\"recentDatapoints\":[38.958,40.292],\"threshold\":70.0}",
            "Period": 300,
            "StateValue": "OK",
            "Threshold": 70.0,
            "AlarmName": "myHighCpuAlarm",
            "Dimensions": [
                {
                    "Name": "InstanceId",
                    "Value": "i-0c986c72"
                }
            ],
            "Statistic": "Average",
            "StateReason": "Threshold Crossed: 2 datapoints were not greater than the threshold (70.0). The most recent datapoints: [38.958, 40.292].",
            "InsufficientDataActions": [],
            "OKActions": [],
            "ActionsEnabled": false,
            "MetricName": "CPUUtilization"
        }
    ]
}
```
+  For API details, see [DescribeAlarmsForMetric](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/cloudwatch/describe-alarms-for-metric.html) in *AWS CLI Command Reference*. 

------
#### [ Java ]

**SDK for Java 2.x**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/cloudwatch#code-examples). 

```
    /**
     * Checks for a metric alarm in AWS CloudWatch.
     *
     * @param fileName the name of the file containing the JSON configuration for the custom metric
     * @return a {@link CompletableFuture} that completes when the check for the metric alarm is complete
     */
    public CompletableFuture<Void> checkForMetricAlarmAsync(String fileName) {
        CompletableFuture<String> readFileFuture = CompletableFuture.supplyAsync(() -> {
            try {
                JsonParser parser = new JsonFactory().createParser(new File(fileName));
                com.fasterxml.jackson.databind.JsonNode rootNode = new ObjectMapper().readTree(parser);
                return rootNode.toString(); // Return JSON as a string for further processing
            } catch (IOException e) {
                throw new RuntimeException("Failed to read file", e);
            }
        });

        return readFileFuture.thenCompose(jsonContent -> {
            try {
                com.fasterxml.jackson.databind.JsonNode rootNode = new ObjectMapper().readTree(jsonContent);
                String customMetricNamespace = rootNode.findValue("customMetricNamespace").asText();
                String customMetricName = rootNode.findValue("customMetricName").asText();

                DescribeAlarmsForMetricRequest metricRequest = DescribeAlarmsForMetricRequest.builder()
                    .metricName(customMetricName)
                    .namespace(customMetricNamespace)
                    .build();

                return checkForAlarmAsync(metricRequest, customMetricName, 10);

            } catch (IOException e) {
                throw new RuntimeException("Failed to parse JSON content", e);
            }
        }).whenComplete((result, exception) -> {
            if (exception != null) {
                throw new RuntimeException("Error checking metric alarm", exception);
            }
        });
    }

    // Recursive method to check for the alarm.

    /**
     * Checks for the existence of an alarm asynchronously for the specified metric.
     *
     * @param metricRequest    the request to describe the alarms for the specified metric
     * @param customMetricName the name of the custom metric to check for an alarm
     * @param retries          the number of retries to perform if no alarm is found
     * @return a {@link CompletableFuture} that completes when an alarm is found or the maximum number of retries has been reached
     */
    private static CompletableFuture<Void> checkForAlarmAsync(DescribeAlarmsForMetricRequest metricRequest, String customMetricName, int retries) {
        if (retries == 0) {
            return CompletableFuture.completedFuture(null).thenRun(() ->
                logger.info("No Alarm state found for {} after 10 retries.", customMetricName)
            );
        }

        return (getAsyncClient().describeAlarmsForMetric(metricRequest).thenCompose(response -> {
            if (response.hasMetricAlarms()) {
                logger.info("Alarm state found for {}", customMetricName);
                return CompletableFuture.completedFuture(null); // Alarm found, complete the future
            } else {
                return CompletableFuture.runAsync(() -> {
                    try {
                        Thread.sleep(20000);
                        logger.info(".");
                    } catch (InterruptedException e) {
                        throw new RuntimeException("Interrupted while waiting to retry", e);
                    }
                }).thenCompose(v -> checkForAlarmAsync(metricRequest, customMetricName, retries - 1)); // Recursive call
            }
        }));
    }
```
+  For API details, see [DescribeAlarmsForMetric](https://docs.aws.amazon.com/goto/SdkForJavaV2/monitoring-2010-08-01/DescribeAlarmsForMetric) in *AWS SDK for Java 2.x API Reference*. 

------
#### [ JavaScript ]

**SDK for JavaScript (v3)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascriptv3/example_code/cloudwatch#code-examples). 
Import the SDK and client modules and call the API.  

```
import { DescribeAlarmsCommand } from "@aws-sdk/client-cloudwatch";
import { client } from "../libs/client.js";

const run = async () => {
  const command = new DescribeAlarmsCommand({
    AlarmNames: [process.env.CLOUDWATCH_ALARM_NAME], // Set the value of CLOUDWATCH_ALARM_NAME to the name of an existing alarm.
  });

  try {
    return await client.send(command);
  } catch (err) {
    console.error(err);
  }
};

export default run();
```
Create the client in a separate module and export it.  

```
import { CloudWatchClient } from "@aws-sdk/client-cloudwatch";

export const client = new CloudWatchClient({});
```
+  For more information, see [AWS SDK for JavaScript Developer Guide](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-creating-alarms.html#cloudwatch-examples-creating-alarms-describing). 
+  For API details, see [DescribeAlarmsForMetric](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/client/cloudwatch/command/DescribeAlarmsForMetricCommand) in *AWS SDK for JavaScript API Reference*. 

**SDK for JavaScript (v2)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/cloudwatch#code-examples). 

```
// 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);
    });
  }
});
```
+  For more information, see [AWS SDK for JavaScript Developer Guide](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-creating-alarms.html#cloudwatch-examples-creating-alarms-describing). 
+  For API details, see [DescribeAlarmsForMetric](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/monitoring-2010-08-01/DescribeAlarmsForMetric) in *AWS SDK for JavaScript API Reference*. 

------
#### [ Kotlin ]

**SDK for Kotlin**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/cloudwatch#code-examples). 

```
suspend fun checkForMetricAlarm(fileName: String?) {
    // Read values from the JSON file.
    val parser = JsonFactory().createParser(File(fileName))
    val rootNode = ObjectMapper().readTree<JsonNode>(parser)
    val customMetricNamespace = rootNode.findValue("customMetricNamespace").asText()
    val customMetricName = rootNode.findValue("customMetricName").asText()
    var hasAlarm = false
    var retries = 10

    val metricRequest =
        DescribeAlarmsForMetricRequest {
            metricName = customMetricName
            namespace = customMetricNamespace
        }
    CloudWatchClient.fromEnvironment { region = "us-east-1" }.use { cwClient ->
        while (!hasAlarm && retries > 0) {
            val response = cwClient.describeAlarmsForMetric(metricRequest)
            if (response.metricAlarms?.count()!! > 0) {
                hasAlarm = true
            }
            retries--
            delay(20000)
            println(".")
        }
        if (!hasAlarm) {
            println("No Alarm state found for $customMetricName after 10 retries.")
        } else {
            println("Alarm state found for $customMetricName.")
        }
    }
}
```
+  For API details, see [DescribeAlarmsForMetric](https://sdk.amazonaws.com/kotlin/api/latest/index.html) in *AWS SDK for Kotlin API reference*. 

------
#### [ Python ]

**SDK for Python (Boto3)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/cloudwatch#code-examples). 

```
class CloudWatchWrapper:
    """Encapsulates Amazon CloudWatch functions."""

    def __init__(self, cloudwatch_resource):
        """
        :param cloudwatch_resource: A Boto3 CloudWatch resource.
        """
        self.cloudwatch_resource = cloudwatch_resource


    def get_metric_alarms(self, metric_namespace, metric_name):
        """
        Gets the alarms that are currently watching the specified metric.

        :param metric_namespace: The namespace of the metric.
        :param metric_name: The name of the metric.
        :returns: An iterator that yields the alarms.
        """
        metric = self.cloudwatch_resource.Metric(metric_namespace, metric_name)
        alarm_iter = metric.alarms.all()
        logger.info("Got alarms for metric %s.%s.", metric_namespace, metric_name)
        return alarm_iter
```
+  For API details, see [DescribeAlarmsForMetric](https://docs.aws.amazon.com/goto/boto3/monitoring-2010-08-01/DescribeAlarmsForMetric) in *AWS SDK for Python (Boto3) API Reference*. 

------
#### [ Ruby ]

**SDK for Ruby**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/cloudwatch#code-examples). 

```
#
# @param cloudwatch_client [Aws::CloudWatch::Client]
#   An initialized CloudWatch client.
# @example
#   describe_metric_alarms(Aws::CloudWatch::Client.new(region: 'us-east-1'))
def describe_metric_alarms(cloudwatch_client)
  response = cloudwatch_client.describe_alarms

  if response.metric_alarms.count.positive?
    response.metric_alarms.each do |alarm|
      puts '-' * 16
      puts "Name:           #{alarm.alarm_name}"
      puts "State value:    #{alarm.state_value}"
      puts "State reason:   #{alarm.state_reason}"
      puts "Metric:         #{alarm.metric_name}"
      puts "Namespace:      #{alarm.namespace}"
      puts "Statistic:      #{alarm.statistic}"
      puts "Period:         #{alarm.period}"
      puts "Unit:           #{alarm.unit}"
      puts "Eval. periods:  #{alarm.evaluation_periods}"
      puts "Threshold:      #{alarm.threshold}"
      puts "Comp. operator: #{alarm.comparison_operator}"

      if alarm.key?(:ok_actions) && alarm.ok_actions.count.positive?
        puts 'OK actions:'
        alarm.ok_actions.each do |a|
          puts "  #{a}"
        end
      end

      if alarm.key?(:alarm_actions) && alarm.alarm_actions.count.positive?
        puts 'Alarm actions:'
        alarm.alarm_actions.each do |a|
          puts "  #{a}"
        end
      end

      if alarm.key?(:insufficient_data_actions) &&
         alarm.insufficient_data_actions.count.positive?
        puts 'Insufficient data actions:'
        alarm.insufficient_data_actions.each do |a|
          puts "  #{a}"
        end
      end

      puts 'Dimensions:'
      if alarm.key?(:dimensions) && alarm.dimensions.count.positive?
        alarm.dimensions.each do |d|
          puts "  Name: #{d.name}, Value: #{d.value}"
        end
      else
        puts '  None for this alarm.'
      end
    end
  else
    puts 'No alarms found.'
  end
rescue StandardError => e
  puts "Error getting information about alarms: #{e.message}"
end

# Example usage:
def run_me
  region = ''

  # Print usage information and then stop.
  if ARGV[0] == '--help' || ARGV[0] == '-h'
    puts 'Usage:   ruby cw-ruby-example-show-alarms.rb REGION'
    puts 'Example: ruby cw-ruby-example-show-alarms.rb us-east-1'
    exit 1
  # If no values are specified at the command prompt, use these default values.
  elsif ARGV.count.zero?
    region = 'us-east-1'
  # Otherwise, use the values as specified at the command prompt.
  else
    region = ARGV[0]
  end

  cloudwatch_client = Aws::CloudWatch::Client.new(region: region)
  puts 'Available alarms:'
  describe_metric_alarms(cloudwatch_client)
end

run_me if $PROGRAM_NAME == __FILE__
```
+  For API details, see [DescribeAlarmsForMetric](https://docs.aws.amazon.com/goto/SdkForRubyV3/monitoring-2010-08-01/DescribeAlarmsForMetric) in *AWS SDK for Ruby API Reference*. 

------
#### [ SAP ABAP ]

**SDK for SAP ABAP**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/cwt#code-examples). 

```
    TRY.
        oo_result = lo_cwt->describealarmsformetric(          " oo_result is returned for testing purposes. "
          iv_namespace   = iv_namespace
          iv_metricname  = iv_metric_name
          it_dimensions  = it_dimensions
          iv_statistic   = iv_statistic
          iv_period      = iv_period
          iv_unit        = iv_unit ).
        MESSAGE 'Alarms for metric retrieved.' TYPE 'I'.
      CATCH /aws1/cx_rt_service_generic INTO DATA(lo_exception).
        DATA(lv_error) = |"{ lo_exception->av_err_code }" - { lo_exception->av_err_msg }|.
        MESSAGE lv_error TYPE 'E'.
    ENDTRY.
```
+  For API details, see [DescribeAlarmsForMetric](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html) in *AWS SDK for SAP ABAP API reference*. 

------

# Use `DescribeAnomalyDetectors` with an AWS SDK or CLI
<a name="cloudwatch_example_cloudwatch_DescribeAnomalyDetectors_section"></a>

The following code examples show how to use `DescribeAnomalyDetectors`.

Action examples are code excerpts from larger programs and must be run in context. You can see this action in context in the following code example: 
+  [Learn the basics](cloudwatch_example_cloudwatch_GetStartedMetricsDashboardsAlarms_section.md) 

------
#### [ .NET ]

**SDK for .NET (v4)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/CloudWatch#code-examples). 

```
    /// <summary>
    /// Describe anomaly detectors for a metric and namespace.
    /// </summary>
    /// <param name="metricNamespace">The namespace of the metric.</param>
    /// <param name="metricName">The metric of the anomaly detectors.</param>
    /// <returns>The list of detectors.</returns>
    public async Task<List<AnomalyDetector>> DescribeAnomalyDetectors(string metricNamespace, string metricName)
    {
        List<AnomalyDetector> detectors = new List<AnomalyDetector>();
        var paginatedDescribeAnomalyDetectors = _amazonCloudWatch.Paginators.DescribeAnomalyDetectors(
            new DescribeAnomalyDetectorsRequest()
            {
                MetricName = metricName,
                Namespace = metricNamespace
            });

        await foreach (var data in paginatedDescribeAnomalyDetectors.AnomalyDetectors)
        {
            detectors.Add(data);
        }

        return detectors;
    }
```
+  For API details, see [DescribeAnomalyDetectors](https://docs.aws.amazon.com/goto/DotNetSDKV4/monitoring-2010-08-01/DescribeAnomalyDetectors) in *AWS SDK for .NET API Reference*. 

------
#### [ CLI ]

**AWS CLI**  
**To retrieve a list of anomaly detection models**  
The following `describe-anomaly-detectors` example displays information about anomaly detector models that are associated with the `AWS/Logs` namespace in the specified account.  

```
aws cloudwatch describe-anomaly-detectors \
    --namespace AWS/Logs
```
Output:  

```
{
    "AnomalyDetectors": [
        {
            "Namespace": "AWS/Logs",
            "MetricName": "IncomingBytes",
            "Dimensions": [],
            "Stat": "SampleCount",
            "Configuration": {
                "ExcludedTimeRanges": []
            },
            "StateValue": "TRAINED",
            "SingleMetricAnomalyDetector": {
                "AccountId": "123456789012",
                "Namespace": "AWS/Logs",
                "MetricName": "IncomingBytes",
                "Dimensions": [],
                "Stat": "SampleCount"
            }
        },
        {
            "Namespace": "AWS/Logs",
            "MetricName": "IncomingBytes",
            "Dimensions": [
                {
                    "Name": "LogGroupName",
                    "Value": "demo"
                }
            ],
            "Stat": "Average",
            "Configuration": {
                "ExcludedTimeRanges": []
            },
            "StateValue": "PENDING_TRAINING",
            "SingleMetricAnomalyDetector": {
                "AccountId": "123456789012",
                "Namespace": "AWS/Logs",
                "MetricName": "IncomingBytes",
                "Dimensions": [
                    {
                        "Name": "LogGroupName",
                        "Value": "demo"
                    }
                ],
                "Stat": "Average"
            }
        }
    ]
}
```
For more information, see [Using CloudWatch anomaly detection](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/CloudWatch_Anomaly_Detection.html) in the *Amazon CloudWatch User Guide*.  
+  For API details, see [DescribeAnomalyDetectors](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/cloudwatch/describe-anomaly-detectors.html) in *AWS CLI Command Reference*. 

------
#### [ Java ]

**SDK for Java 2.x**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/cloudwatch#code-examples). 

```
    /**
     * Describes the anomaly detectors based on the specified JSON file.
     *
     * @param fileName the name of the JSON file containing the custom metric namespace and name
     * @return a {@link CompletableFuture} that completes when the anomaly detectors have been described
     * @throws RuntimeException if there is a failure during the operation, such as when reading or parsing the JSON file,
     *                          or when describing the anomaly detectors
     */
    public CompletableFuture<Void> describeAnomalyDetectorsAsync(String fileName) {
        CompletableFuture<JsonNode> readFileFuture = CompletableFuture.supplyAsync(() -> {
            try {
                JsonParser parser = new JsonFactory().createParser(new File(fileName));
                return new ObjectMapper().readTree(parser);
            } catch (IOException e) {
                throw new RuntimeException("Failed to read or parse the file", e);
            }
        });

        return readFileFuture.thenCompose(rootNode -> {
            try {
                String customMetricNamespace = rootNode.findValue("customMetricNamespace").asText();
                String customMetricName = rootNode.findValue("customMetricName").asText();

                DescribeAnomalyDetectorsRequest detectorsRequest = DescribeAnomalyDetectorsRequest.builder()
                    .maxResults(10)
                    .metricName(customMetricName)
                    .namespace(customMetricNamespace)
                    .build();

                return getAsyncClient().describeAnomalyDetectors(detectorsRequest).thenAccept(response -> {
                    List<AnomalyDetector> anomalyDetectorList = response.anomalyDetectors();
                    for (AnomalyDetector detector : anomalyDetectorList) {
                        logger.info("Metric name: {} ", detector.singleMetricAnomalyDetector().metricName());
                        logger.info("State: {} ", detector.stateValue());
                    }
                });
            } catch (RuntimeException e) {
                throw new RuntimeException("Failed to describe anomaly detectors", e);
            }
        }).whenComplete((result, exception) -> {
            if (exception != null) {
                throw new RuntimeException("Error describing anomaly detectors", exception);
            }
        });
    }
```
+  For API details, see [DescribeAnomalyDetectors](https://docs.aws.amazon.com/goto/SdkForJavaV2/monitoring-2010-08-01/DescribeAnomalyDetectors) in *AWS SDK for Java 2.x API Reference*. 

------
#### [ Kotlin ]

**SDK for Kotlin**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/cloudwatch#code-examples). 

```
suspend fun describeAnomalyDetectors(fileName: String) {
    // Read values from the JSON file.
    val parser = JsonFactory().createParser(File(fileName))
    val rootNode = ObjectMapper().readTree<JsonNode>(parser)
    val customMetricNamespace = rootNode.findValue("customMetricNamespace").asText()
    val customMetricName = rootNode.findValue("customMetricName").asText()

    val detectorsRequest =
        DescribeAnomalyDetectorsRequest {
            maxResults = 10
            metricName = customMetricName
            namespace = customMetricNamespace
        }
    CloudWatchClient.fromEnvironment { region = "us-east-1" }.use { cwClient ->
        val response = cwClient.describeAnomalyDetectors(detectorsRequest)
        response.anomalyDetectors?.forEach { detector ->
            println("Metric name: ${detector.singleMetricAnomalyDetector?.metricName}")
            println("State: ${detector.stateValue}")
        }
    }
}
```
+  For API details, see [DescribeAnomalyDetectors](https://sdk.amazonaws.com/kotlin/api/latest/index.html) in *AWS SDK for Kotlin API reference*. 

------

# Use `DisableAlarmActions` with an AWS SDK or CLI
<a name="cloudwatch_example_cloudwatch_DisableAlarmActions_section"></a>

The following code examples show how to use `DisableAlarmActions`.

Action examples are code excerpts from larger programs and must be run in context. You can see this action in context in the following code examples: 
+  [Get started with alarms](cloudwatch_example_cloudwatch_Scenario_GettingStarted_section.md) 
+  [Manage metrics and alarms](cloudwatch_example_cloudwatch_Usage_MetricsAlarms_section.md) 

------
#### [ .NET ]

**SDK for .NET (v4)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/CloudWatch#code-examples). 

```
    /// <summary>
    /// Disable the actions for a list of alarms from CloudWatch.
    /// </summary>
    /// <param name="alarmNames">A list of names of alarms.</param>
    /// <returns>True if successful.</returns>
    public async Task<bool> DisableAlarmActions(List<string> alarmNames)
    {
        var disableAlarmActionsResult = await _amazonCloudWatch.DisableAlarmActionsAsync(
            new DisableAlarmActionsRequest()
            {
                AlarmNames = alarmNames
            });

        return disableAlarmActionsResult.HttpStatusCode == HttpStatusCode.OK;
    }
```
+  For API details, see [DisableAlarmActions](https://docs.aws.amazon.com/goto/DotNetSDKV4/monitoring-2010-08-01/DisableAlarmActions) in *AWS SDK for .NET API Reference*. 

------
#### [ C\$1\$1 ]

**SDK for C\$1\$1**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/cpp/example_code/cloudwatch#code-examples). 
Include the required files.  

```
#include <aws/core/Aws.h>
#include <aws/monitoring/CloudWatchClient.h>
#include <aws/monitoring/model/DisableAlarmActionsRequest.h>
#include <iostream>
```
Disable the alarm actions.  

```
        Aws::CloudWatch::CloudWatchClient cw;

        Aws::CloudWatch::Model::DisableAlarmActionsRequest disableAlarmActionsRequest;
        disableAlarmActionsRequest.AddAlarmNames(alarm_name);

        auto disableAlarmActionsOutcome = cw.DisableAlarmActions(disableAlarmActionsRequest);
        if (!disableAlarmActionsOutcome.IsSuccess())
        {
            std::cout << "Failed to disable actions for alarm " << alarm_name <<
                ": " << disableAlarmActionsOutcome.GetError().GetMessage() <<
                std::endl;
        }
        else
        {
            std::cout << "Successfully disabled actions for alarm " <<
                alarm_name << std::endl;
        }
```
+  For API details, see [DisableAlarmActions](https://docs.aws.amazon.com/goto/SdkForCpp/monitoring-2010-08-01/DisableAlarmActions) in *AWS SDK for C\$1\$1 API Reference*. 

------
#### [ CLI ]

**AWS CLI**  
**To disable actions for an alarm**  
The following example uses the `disable-alarm-actions` command to disable all actions for the alarm named myalarm.:  

```
aws cloudwatch disable-alarm-actions --alarm-names myalarm
```
This command returns to the prompt if successful.  
+  For API details, see [DisableAlarmActions](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/cloudwatch/disable-alarm-actions.html) in *AWS CLI Command Reference*. 

------
#### [ Java ]

**SDK for Java 2.x**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/cloudwatch#code-examples). 

```
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.cloudwatch.CloudWatchClient;
import software.amazon.awssdk.services.cloudwatch.model.CloudWatchException;
import software.amazon.awssdk.services.cloudwatch.model.DisableAlarmActionsRequest;

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 */
public class DisableAlarmActions {
    public static void main(String[] args) {
        final String usage = """

                Usage:
                  <alarmName>

                Where:
                  alarmName - An alarm name to disable (for example, MyAlarm).
                """;

        if (args.length != 1) {
            System.out.println(usage);
            System.exit(1);
        }

        String alarmName = args[0];
        Region region = Region.US_EAST_1;
        CloudWatchClient cw = CloudWatchClient.builder()
                .region(region)
                .build();

        disableActions(cw, alarmName);
        cw.close();
    }

    public static void disableActions(CloudWatchClient cw, String alarmName) {
        try {
            DisableAlarmActionsRequest request = DisableAlarmActionsRequest.builder()
                    .alarmNames(alarmName)
                    .build();

            cw.disableAlarmActions(request);
            System.out.printf("Successfully disabled actions on alarm %s", alarmName);

        } catch (CloudWatchException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}
```
+  For API details, see [DisableAlarmActions](https://docs.aws.amazon.com/goto/SdkForJavaV2/monitoring-2010-08-01/DisableAlarmActions) in *AWS SDK for Java 2.x API Reference*. 

------
#### [ JavaScript ]

**SDK for JavaScript (v3)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascriptv3/example_code/cloudwatch#code-examples). 
Import the SDK and client modules and call the API.  

```
import { DisableAlarmActionsCommand } from "@aws-sdk/client-cloudwatch";
import { client } from "../libs/client.js";

const run = async () => {
  const command = new DisableAlarmActionsCommand({
    AlarmNames: process.env.CLOUDWATCH_ALARM_NAME, // Set the value of CLOUDWATCH_ALARM_NAME to the name of an existing alarm.
  });

  try {
    return await client.send(command);
  } catch (err) {
    console.error(err);
  }
};

export default run();
```
Create the client in a separate module and export it.  

```
import { CloudWatchClient } from "@aws-sdk/client-cloudwatch";

export const client = new CloudWatchClient({});
```
+  For more information, see [AWS SDK for JavaScript Developer Guide](https://docs.aws.amazon.com/sdk-for-javascript/v3/developer-guide/cloudwatch-examples-using-alarm-actions.html#cloudwatch-examples-using-alarm-actions-disabling). 
+  For API details, see [DisableAlarmActions](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/client/cloudwatch/command/DisableAlarmActionsCommand) in *AWS SDK for JavaScript API Reference*. 

**SDK for JavaScript (v2)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/cloudwatch#code-examples). 
Import the SDK and client modules and call the 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);
    }
  }
);
```
+  For more information, see [AWS SDK for JavaScript 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). 
+  For API details, see [DisableAlarmActions](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/monitoring-2010-08-01/DisableAlarmActions) in *AWS SDK for JavaScript API Reference*. 

------
#### [ Kotlin ]

**SDK for Kotlin**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/cloudwatch#code-examples). 

```
suspend fun disableActions(alarmName: String) {
    val request =
        DisableAlarmActionsRequest {
            alarmNames = listOf(alarmName)
        }
    CloudWatchClient.fromEnvironment { region = "us-east-1" }.use { cwClient ->
        cwClient.disableAlarmActions(request)
        println("Successfully disabled actions on alarm $alarmName")
    }
}
```
+  For API details, see [DisableAlarmActions](https://sdk.amazonaws.com/kotlin/api/latest/index.html) in *AWS SDK for Kotlin API reference*. 

------
#### [ Python ]

**SDK for Python (Boto3)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/cloudwatch#code-examples). 

```
class CloudWatchWrapper:
    """Encapsulates Amazon CloudWatch functions."""

    def __init__(self, cloudwatch_resource):
        """
        :param cloudwatch_resource: A Boto3 CloudWatch resource.
        """
        self.cloudwatch_resource = cloudwatch_resource


    def enable_alarm_actions(self, alarm_name, enable):
        """
        Enables or disables actions on the specified alarm. Alarm actions can be
        used to send notifications or automate responses when an alarm enters a
        particular state.

        :param alarm_name: The name of the alarm.
        :param enable: When True, actions are enabled for the alarm. Otherwise, they
                       disabled.
        """
        try:
            alarm = self.cloudwatch_resource.Alarm(alarm_name)
            if enable:
                alarm.enable_actions()
            else:
                alarm.disable_actions()
            logger.info(
                "%s actions for alarm %s.",
                "Enabled" if enable else "Disabled",
                alarm_name,
            )
        except ClientError:
            logger.exception(
                "Couldn't %s actions alarm %s.",
                "enable" if enable else "disable",
                alarm_name,
            )
            raise
```
+  For API details, see [DisableAlarmActions](https://docs.aws.amazon.com/goto/boto3/monitoring-2010-08-01/DisableAlarmActions) in *AWS SDK for Python (Boto3) API Reference*. 

------
#### [ Ruby ]

**SDK for Ruby**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/cloudwatch#code-examples). 

```
# Disables an alarm in Amazon CloudWatch.
#
# Prerequisites.
#
# - The alarm to disable.
#
# @param cloudwatch_client [Aws::CloudWatch::Client]
#   An initialized CloudWatch client.
# @param alarm_name [String] The name of the alarm to disable.
# @return [Boolean] true if the alarm was disabled; otherwise, false.
# @example
#   exit 1 unless alarm_actions_disabled?(
#     Aws::CloudWatch::Client.new(region: 'us-east-1'),
#     'ObjectsInBucket'
#   )
def alarm_actions_disabled?(cloudwatch_client, alarm_name)
  cloudwatch_client.disable_alarm_actions(alarm_names: [alarm_name])
  true
rescue StandardError => e
  puts "Error disabling alarm actions: #{e.message}"
  false
end

# Example usage:
def run_me
  alarm_name = 'ObjectsInBucket'
  alarm_description = 'Objects exist in this bucket for more than 1 day.'
  metric_name = 'NumberOfObjects'
  # Notify this Amazon Simple Notification Service (Amazon SNS) topic when
  # the alarm transitions to the ALARM state.
  alarm_actions = ['arn:aws:sns:us-east-1:111111111111:Default_CloudWatch_Alarms_Topic']
  namespace = 'AWS/S3'
  statistic = 'Average'
  dimensions = [
    {
      name: "BucketName",
      value: "amzn-s3-demo-bucket"
    },
    {
      name: 'StorageType',
      value: 'AllStorageTypes'
    }
  ]
  period = 86_400 # Daily (24 hours * 60 minutes * 60 seconds = 86400 seconds).
  unit = 'Count'
  evaluation_periods = 1 # More than one day.
  threshold = 1 # One object.
  comparison_operator = 'GreaterThanThreshold' # More than one object.
  # Replace us-west-2 with the AWS Region you're using for Amazon CloudWatch.
  region = 'us-east-1'

  cloudwatch_client = Aws::CloudWatch::Client.new(region: region)

  if alarm_created_or_updated?(
    cloudwatch_client,
    alarm_name,
    alarm_description,
    metric_name,
    alarm_actions,
    namespace,
    statistic,
    dimensions,
    period,
    unit,
    evaluation_periods,
    threshold,
    comparison_operator
  )
    puts "Alarm '#{alarm_name}' created or updated."
  else
    puts "Could not create or update alarm '#{alarm_name}'."
  end

  if alarm_actions_disabled?(cloudwatch_client, alarm_name)
    puts "Alarm '#{alarm_name}' disabled."
  else
    puts "Could not disable alarm '#{alarm_name}'."
  end
end

run_me if $PROGRAM_NAME == __FILE__
```
+  For API details, see [DisableAlarmActions](https://docs.aws.amazon.com/goto/SdkForRubyV3/monitoring-2010-08-01/DisableAlarmActions) in *AWS SDK for Ruby API Reference*. 

------
#### [ SAP ABAP ]

**SDK for SAP ABAP**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/cwt#code-examples). 

```
    "Disables actions on the specified alarm. "
    TRY.
        lo_cwt->disablealarmactions(
          it_alarmnames = it_alarm_names ).
        MESSAGE 'Alarm actions disabled.' TYPE 'I'.
      CATCH /aws1/cx_rt_service_generic INTO DATA(lo_exception).
        DATA(lv_error) = |"{ lo_exception->av_err_code }" - { lo_exception->av_err_msg }|.
        MESSAGE lv_error TYPE 'E'.
    ENDTRY.
```
+  For API details, see [DisableAlarmActions](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html) in *AWS SDK for SAP ABAP API reference*. 

------

# Use `EnableAlarmActions` with an AWS SDK or CLI
<a name="cloudwatch_example_cloudwatch_EnableAlarmActions_section"></a>

The following code examples show how to use `EnableAlarmActions`.

Action examples are code excerpts from larger programs and must be run in context. You can see this action in context in the following code example: 
+  [Manage metrics and alarms](cloudwatch_example_cloudwatch_Usage_MetricsAlarms_section.md) 

------
#### [ .NET ]

**SDK for .NET (v4)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/CloudWatch#code-examples). 

```
    /// <summary>
    /// Enable the actions for a list of alarms from CloudWatch.
    /// </summary>
    /// <param name="alarmNames">A list of names of alarms.</param>
    /// <returns>True if successful.</returns>
    public async Task<bool> EnableAlarmActions(List<string> alarmNames)
    {
        var enableAlarmActionsResult = await _amazonCloudWatch.EnableAlarmActionsAsync(
            new EnableAlarmActionsRequest()
            {
                AlarmNames = alarmNames
            });

        return enableAlarmActionsResult.HttpStatusCode == HttpStatusCode.OK;
    }
```
+  For API details, see [EnableAlarmActions](https://docs.aws.amazon.com/goto/DotNetSDKV4/monitoring-2010-08-01/EnableAlarmActions) in *AWS SDK for .NET API Reference*. 

------
#### [ C\$1\$1 ]

**SDK for C\$1\$1**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/cpp/example_code/cloudwatch#code-examples). 
Include the required files.  

```
#include <aws/core/Aws.h>
#include <aws/monitoring/CloudWatchClient.h>
#include <aws/monitoring/model/EnableAlarmActionsRequest.h>
#include <aws/monitoring/model/PutMetricAlarmRequest.h>
#include <iostream>
```
Enable the alarm actions.  

```
    Aws::CloudWatch::CloudWatchClient cw;
    Aws::CloudWatch::Model::PutMetricAlarmRequest request;
    request.SetAlarmName(alarm_name);
    request.SetComparisonOperator(
        Aws::CloudWatch::Model::ComparisonOperator::GreaterThanThreshold);
    request.SetEvaluationPeriods(1);
    request.SetMetricName("CPUUtilization");
    request.SetNamespace("AWS/EC2");
    request.SetPeriod(60);
    request.SetStatistic(Aws::CloudWatch::Model::Statistic::Average);
    request.SetThreshold(70.0);
    request.SetActionsEnabled(false);
    request.SetAlarmDescription("Alarm when server CPU exceeds 70%");
    request.SetUnit(Aws::CloudWatch::Model::StandardUnit::Seconds);
    request.AddAlarmActions(actionArn);

    Aws::CloudWatch::Model::Dimension dimension;
    dimension.SetName("InstanceId");
    dimension.SetValue(instanceId);
    request.AddDimensions(dimension);

    auto outcome = cw.PutMetricAlarm(request);
    if (!outcome.IsSuccess())
    {
        std::cout << "Failed to create CloudWatch alarm:" <<
            outcome.GetError().GetMessage() << std::endl;
        return;
    }

    Aws::CloudWatch::Model::EnableAlarmActionsRequest enable_request;
    enable_request.AddAlarmNames(alarm_name);

    auto enable_outcome = cw.EnableAlarmActions(enable_request);
    if (!enable_outcome.IsSuccess())
    {
        std::cout << "Failed to enable alarm actions:" <<
            enable_outcome.GetError().GetMessage() << std::endl;
        return;
    }

    std::cout << "Successfully created alarm " << alarm_name <<
        " and enabled actions on it." << std::endl;
```
+  For API details, see [EnableAlarmActions](https://docs.aws.amazon.com/goto/SdkForCpp/monitoring-2010-08-01/EnableAlarmActions) in *AWS SDK for C\$1\$1 API Reference*. 

------
#### [ CLI ]

**AWS CLI**  
**To enable all actions for an alarm**  
The following example uses the `enable-alarm-actions` command to enable all actions for the alarm named myalarm.:  

```
aws cloudwatch enable-alarm-actions --alarm-names myalarm
```
This command returns to the prompt if successful.  
+  For API details, see [EnableAlarmActions](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/cloudwatch/enable-alarm-actions.html) in *AWS CLI Command Reference*. 

------
#### [ Java ]

**SDK for Java 2.x**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/cloudwatch#code-examples). 

```
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.cloudwatch.CloudWatchClient;
import software.amazon.awssdk.services.cloudwatch.model.CloudWatchException;
import software.amazon.awssdk.services.cloudwatch.model.EnableAlarmActionsRequest;

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 */
public class EnableAlarmActions {
    public static void main(String[] args) {
        final String usage = """

                Usage:
                  <alarmName>

                Where:
                  alarmName - An alarm name to enable (for example, MyAlarm).
                """;

        if (args.length != 1) {
            System.out.println(usage);
            System.exit(1);
        }

        String alarm = args[0];
        Region region = Region.US_EAST_1;
        CloudWatchClient cw = CloudWatchClient.builder()
                .region(region)
                .build();

        enableActions(cw, alarm);
        cw.close();
    }

    public static void enableActions(CloudWatchClient cw, String alarm) {
        try {
            EnableAlarmActionsRequest request = EnableAlarmActionsRequest.builder()
                    .alarmNames(alarm)
                    .build();

            cw.enableAlarmActions(request);
            System.out.printf("Successfully enabled actions on alarm %s", alarm);

        } catch (CloudWatchException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}
```
+  For API details, see [EnableAlarmActions](https://docs.aws.amazon.com/goto/SdkForJavaV2/monitoring-2010-08-01/EnableAlarmActions) in *AWS SDK for Java 2.x API Reference*. 

------
#### [ JavaScript ]

**SDK for JavaScript (v3)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascriptv3/example_code/cloudwatch#code-examples). 
Import the SDK and client modules and call the API.  

```
import { EnableAlarmActionsCommand } from "@aws-sdk/client-cloudwatch";
import { client } from "../libs/client.js";

const run = async () => {
  const command = new EnableAlarmActionsCommand({
    AlarmNames: [process.env.CLOUDWATCH_ALARM_NAME], // Set the value of CLOUDWATCH_ALARM_NAME to the name of an existing alarm.
  });

  try {
    return await client.send(command);
  } catch (err) {
    console.error(err);
  }
};

export default run();
```
Create the client in a separate module and export it.  

```
import { CloudWatchClient } from "@aws-sdk/client-cloudwatch";

export const client = new CloudWatchClient({});
```
+  For more information, see [AWS SDK for JavaScript Developer Guide](https://docs.aws.amazon.com/sdk-for-javascript/v3/developer-guide/cloudwatch-examples-using-alarm-actions.html#cloudwatch-examples-using-alarm-actions-enabling). 
+  For API details, see [EnableAlarmActions](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/client/cloudwatch/command/EnableAlarmActionsCommand) in *AWS SDK for JavaScript API Reference*. 

**SDK for JavaScript (v2)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/cloudwatch#code-examples). 
Import the SDK and client modules and call the 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);
      }
    });
  }
});
```
+  For more information, see [AWS SDK for JavaScript 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). 
+  For API details, see [EnableAlarmActions](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/monitoring-2010-08-01/EnableAlarmActions) in *AWS SDK for JavaScript API Reference*. 

------
#### [ Kotlin ]

**SDK for Kotlin**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/cloudwatch#code-examples). 

```
suspend fun enableActions(alarm: String) {
    val request =
        EnableAlarmActionsRequest {
            alarmNames = listOf(alarm)
        }

    CloudWatchClient.fromEnvironment { region = "us-east-1" }.use { cwClient ->
        cwClient.enableAlarmActions(request)
        println("Successfully enabled actions on alarm $alarm")
    }
}
```
+  For API details, see [EnableAlarmActions](https://sdk.amazonaws.com/kotlin/api/latest/index.html) in *AWS SDK for Kotlin API reference*. 

------
#### [ Python ]

**SDK for Python (Boto3)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/cloudwatch#code-examples). 

```
class CloudWatchWrapper:
    """Encapsulates Amazon CloudWatch functions."""

    def __init__(self, cloudwatch_resource):
        """
        :param cloudwatch_resource: A Boto3 CloudWatch resource.
        """
        self.cloudwatch_resource = cloudwatch_resource


    def enable_alarm_actions(self, alarm_name, enable):
        """
        Enables or disables actions on the specified alarm. Alarm actions can be
        used to send notifications or automate responses when an alarm enters a
        particular state.

        :param alarm_name: The name of the alarm.
        :param enable: When True, actions are enabled for the alarm. Otherwise, they
                       disabled.
        """
        try:
            alarm = self.cloudwatch_resource.Alarm(alarm_name)
            if enable:
                alarm.enable_actions()
            else:
                alarm.disable_actions()
            logger.info(
                "%s actions for alarm %s.",
                "Enabled" if enable else "Disabled",
                alarm_name,
            )
        except ClientError:
            logger.exception(
                "Couldn't %s actions alarm %s.",
                "enable" if enable else "disable",
                alarm_name,
            )
            raise
```
+  For API details, see [EnableAlarmActions](https://docs.aws.amazon.com/goto/boto3/monitoring-2010-08-01/EnableAlarmActions) in *AWS SDK for Python (Boto3) API Reference*. 

------
#### [ SAP ABAP ]

**SDK for SAP ABAP**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/cwt#code-examples). 

```
    "Enable actions on the specified alarm."
    TRY.
        lo_cwt->enablealarmactions(
          it_alarmnames = it_alarm_names ).
        MESSAGE 'Alarm actions enabled.' TYPE 'I'.
      CATCH /aws1/cx_rt_service_generic INTO DATA(lo_exception).
        DATA(lv_error) = |"{ lo_exception->av_err_code }" - { lo_exception->av_err_msg }|.
        MESSAGE lv_error TYPE 'E'.
    ENDTRY.
```
+  For API details, see [EnableAlarmActions](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html) in *AWS SDK for SAP ABAP API reference*. 

------

# Use `GetDashboard` with an AWS SDK or CLI
<a name="cloudwatch_example_cloudwatch_GetDashboard_section"></a>

The following code examples show how to use `GetDashboard`.

Action examples are code excerpts from larger programs and must be run in context. You can see this action in context in the following code examples: 
+  [Creating a CloudWatch dashboard with function name as a variable](cloudwatch_example_cloudwatch_GettingStarted_031_section.md) 
+  [Using property variables in CloudWatch dashboards to monitor multiple Lambda functions](cloudwatch_example_iam_GettingStarted_032_section.md) 

------
#### [ .NET ]

**SDK for .NET (v4)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/CloudWatch#code-examples). 

```
    /// <summary>
    /// Get information on a dashboard.
    /// </summary>
    /// <param name="dashboardName">The name of the dashboard.</param>
    /// <returns>A JSON object with dashboard information.</returns>
    public async Task<string> GetDashboard(string dashboardName)
    {
        var dashboardResponse = await _amazonCloudWatch.GetDashboardAsync(
            new GetDashboardRequest()
            {
                DashboardName = dashboardName
            });

        return dashboardResponse.DashboardBody;
    }
```
+  For API details, see [GetDashboard](https://docs.aws.amazon.com/goto/DotNetSDKV4/monitoring-2010-08-01/GetDashboard) in *AWS SDK for .NET API Reference*. 

------
#### [ CLI ]

**AWS CLI**  
**To retrieve information about a Dashboard**  
The following `get-dashboard` example displays information about the dashboard named `Dashboard-A` in the specified account.  

```
aws cloudwatch get-dashboard \
    --dashboard-name Dashboard-A
```
Output:  

```
{
    "DashboardArn": "arn:aws:cloudwatch::123456789012:dashboard/Dashboard-A",
    "DashboardBody": "{\"widgets\":[{\"type\":\"metric\",\"x\":0,\"y\":0,\"width\":6,\"height\":6,\"properties\":{\"view\":\"timeSeries\",\"stacked\":false,\"metrics\":[[\"AWS/EC2\",\"NetworkIn\",\"InstanceId\",\"i-0131f062232ade043\"],[\".\",\"NetworkOut\",\".\",\".\"]],\"region\":\"us-east-1\"}}]}",
    "DashboardName": "Dashboard-A"
}
```
For more information, see [Amazon CloudWatch dashboards](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/CloudWatch_Dashboards.html) in the *Amazon CloudWatch User Guide*.  
+  For API details, see [GetDashboard](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/cloudwatch/get-dashboard.html) in *AWS CLI Command Reference*. 

------
#### [ PowerShell ]

**Tools for PowerShell V4**  
**Example 1: Returns the arn the body of the specified dashboard.**  

```
Get-CWDashboard -DashboardName Dashboard1
```
**Output:**  

```
DashboardArn                                          DashboardBody
------------                                          -------------
arn:aws:cloudwatch::123456789012:dashboard/Dashboard1 {...
```
+  For API details, see [GetDashboard](https://docs.aws.amazon.com/powershell/v4/reference) in *AWS Tools for PowerShell Cmdlet Reference (V4)*. 

**Tools for PowerShell V5**  
**Example 1: Returns the arn the body of the specified dashboard.**  

```
Get-CWDashboard -DashboardName Dashboard1
```
**Output:**  

```
DashboardArn                                          DashboardBody
------------                                          -------------
arn:aws:cloudwatch::123456789012:dashboard/Dashboard1 {...
```
+  For API details, see [GetDashboard](https://docs.aws.amazon.com/powershell/v5/reference) in *AWS Tools for PowerShell Cmdlet Reference (V5)*. 

------

# Use `GetMetricData` with an AWS SDK or CLI
<a name="cloudwatch_example_cloudwatch_GetMetricData_section"></a>

The following code examples show how to use `GetMetricData`.

Action examples are code excerpts from larger programs and must be run in context. You can see this action in context in the following code examples: 
+  [Learn the basics](cloudwatch_example_cloudwatch_GetStartedMetricsDashboardsAlarms_section.md) 
+  [Run CPU stress tests on EC2 instances using FIS](cloudwatch_example_iam_GettingStarted_069_section.md) 

------
#### [ .NET ]

**SDK for .NET (v4)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/CloudWatch#code-examples). 

```
    /// <summary>
    /// Get data for CloudWatch metrics.
    /// </summary>
    /// <param name="minutesOfData">The number of minutes of data to include.</param>
    /// <param name="useDescendingTime">True to return the data descending by time.</param>
    /// <param name="endDateUtc">The end date for the data, in UTC.</param>
    /// <param name="maxDataPoints">The maximum data points to include.</param>
    /// <param name="dataQueries">Optional data queries to include.</param>
    /// <returns>A list of the requested metric data.</returns>
    public async Task<List<MetricDataResult>> GetMetricData(int minutesOfData, bool useDescendingTime, DateTime? endDateUtc = null,
        int maxDataPoints = 0, List<MetricDataQuery>? dataQueries = null)
    {
        var metricData = new List<MetricDataResult>();
        // If no end time is provided, use the current time for the end time.
        endDateUtc ??= DateTime.UtcNow;
        var timeZoneOffset = TimeZoneInfo.Local.GetUtcOffset(endDateUtc.Value.ToLocalTime());
        var startTimeUtc = endDateUtc.Value.AddMinutes(-minutesOfData);
        // The timezone string should be in the format +0000, so use the timezone offset to format it correctly.
        var timeZoneString = $"{timeZoneOffset.Hours:D2}{timeZoneOffset.Minutes:D2}";
        // Add the plus sign for positive offsets.
        timeZoneString = timeZoneString.StartsWith('-') ? timeZoneString : "+" + timeZoneString;
        var paginatedMetricData = _amazonCloudWatch.Paginators.GetMetricData(
            new GetMetricDataRequest()
            {
                StartTimeUtc = startTimeUtc,
                EndTimeUtc = endDateUtc.Value,
                LabelOptions = new LabelOptions { Timezone = timeZoneString },
                ScanBy = useDescendingTime ? ScanBy.TimestampDescending : ScanBy.TimestampAscending,
                MaxDatapoints = maxDataPoints,
                MetricDataQueries = dataQueries,
            });

        if (paginatedMetricData.MetricDataResults != null)
        {
            await foreach (var data in paginatedMetricData.MetricDataResults)
            {
                metricData.Add(data);
            }
        }

        return metricData;
    }
```
+  For API details, see [GetMetricData](https://docs.aws.amazon.com/goto/DotNetSDKV4/monitoring-2010-08-01/GetMetricData) in *AWS SDK for .NET API Reference*. 

------
#### [ CLI ]

**AWS CLI**  
**Example 1: To get the Average Total IOPS for the specified EC2 using math expression**  
The following `get-metric-data` example retrieves CloudWatch metric values for the EC2 instance with InstanceID `i-abcdef` using metric math exprssion that combines `EBSReadOps` and `EBSWriteOps` metrics.  

```
aws cloudwatch get-metric-data \
    --metric-data-queries file://file.json \
    --start-time 2024-09-29T22:10:00Z \
    --end-time 2024-09-29T22:15:00Z
```
Contents of `file.json`:  

```
[
    {
        "Id": "m3",
        "Expression": "(m1+m2)/300",
        "Label": "Avg Total IOPS"
    },
    {
        "Id": "m1",
        "MetricStat": {
            "Metric": {
                "Namespace": "AWS/EC2",
                "MetricName": "EBSReadOps",
                "Dimensions": [
                    {
                        "Name": "InstanceId",
                        "Value": "i-abcdef"
                    }
                ]
            },
            "Period": 300,
            "Stat": "Sum",
            "Unit": "Count"
        },
        "ReturnData": false
    },
    {
        "Id": "m2",
        "MetricStat": {
            "Metric": {
                "Namespace": "AWS/EC2",
                "MetricName": "EBSWriteOps",
                "Dimensions": [
                    {
                        "Name": "InstanceId",
                        "Value": "i-abcdef"
                    }
                ]
            },
            "Period": 300,
            "Stat": "Sum",
            "Unit": "Count"
        },
        "ReturnData": false
    }
]
```
Output:  

```
{
    "MetricDataResults": [
        {
            "Id": "m3",
            "Label": "Avg Total IOPS",
            "Timestamps": [
                "2024-09-29T22:10:00+00:00"
            ],
            "Values": [
                96.85
            ],
            "StatusCode": "Complete"
        }
    ],
    "Messages": []
}
```
**Example 2: To monitor the estimated AWS charges using CloudWatch billing metrics**  
The following `get-metric-data` example retrieves `EstimatedCharges` CloudWatch metric from AWS/Billing namespace.  

```
aws cloudwatch get-metric-data \
    --metric-data-queries '[{"Id":"m1","MetricStat":{"Metric":{"Namespace":"AWS/Billing","MetricName":"EstimatedCharges","Dimensions":[{"Name":"Currency","Value":"USD"}]},"Period":21600,"Stat":"Maximum"}}]' \
    --start-time 2024-09-26T12:00:00Z \
    --end-time 2024-09-26T18:00:00Z \
    --region us-east-1
```
Output:  

```
{
    "MetricDataResults": [
        {
            "Id": "m1",
            "Label": "EstimatedCharges",
            "Timestamps": [
                "2024-09-26T12:00:00+00:00"
            ],
            "Values": [
                542.38
            ],
            "StatusCode": "Complete"
        }
    ],
    "Messages": []
}
```
For more information, see [Using math expressions with CloudWatch metrics](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/using-metric-math.html) in the *Amazon CloudWatch User Guide*.  
+  For API details, see [GetMetricData](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/cloudwatch/get-metric-data.html) in *AWS CLI Command Reference*. 

------
#### [ Java ]

**SDK for Java 2.x**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/cloudwatch#code-examples). 

```
    /**
     * Retrieves custom metric data from the AWS CloudWatch service.
     *
     * @param fileName the name of the file containing the custom metric information
     * @return a {@link CompletableFuture} that completes when the metric data has been retrieved
     */
    public CompletableFuture<Void> getCustomMetricDataAsync(String fileName) {
        CompletableFuture<String> readFileFuture = CompletableFuture.supplyAsync(() -> {
            try {
                // Read values from the JSON file.
                JsonParser parser = new JsonFactory().createParser(new File(fileName));
                com.fasterxml.jackson.databind.JsonNode rootNode = new ObjectMapper().readTree(parser);
                return rootNode.toString(); // Return JSON as a string for further processing
            } catch (IOException e) {
                throw new RuntimeException("Failed to read file", e);
            }
        });

        return readFileFuture.thenCompose(jsonContent -> {
            try {
                // Parse the JSON string to extract relevant values.
                com.fasterxml.jackson.databind.JsonNode rootNode = new ObjectMapper().readTree(jsonContent);
                String customMetricNamespace = rootNode.findValue("customMetricNamespace").asText();
                String customMetricName = rootNode.findValue("customMetricName").asText();

                // Set the current time and date range for metric query.
                Instant nowDate = Instant.now();
                long hours = 1;
                long minutes = 30;
                Instant endTime = nowDate.plus(hours, ChronoUnit.HOURS).plus(minutes, ChronoUnit.MINUTES);

                Metric met = Metric.builder()
                    .metricName(customMetricName)
                    .namespace(customMetricNamespace)
                    .build();

                MetricStat metStat = MetricStat.builder()
                    .stat("Maximum")
                    .period(60)  // Assuming period in seconds
                    .metric(met)
                    .build();

                MetricDataQuery dataQuery = MetricDataQuery.builder()
                    .metricStat(metStat)
                    .id("foo2")
                    .returnData(true)
                    .build();

                List<MetricDataQuery> dq = new ArrayList<>();
                dq.add(dataQuery);

                GetMetricDataRequest getMetricDataRequest = GetMetricDataRequest.builder()
                    .maxDatapoints(10)
                    .scanBy(ScanBy.TIMESTAMP_DESCENDING)
                    .startTime(nowDate)
                    .endTime(endTime)
                    .metricDataQueries(dq)
                    .build();

                // Call the async method for CloudWatch data retrieval.
                return getAsyncClient().getMetricData(getMetricDataRequest);

            } catch (IOException e) {
                throw new RuntimeException("Failed to parse JSON content", e);
            }
        }).thenAccept(response -> {
            List<MetricDataResult> data = response.metricDataResults();
            for (MetricDataResult item : data) {
                logger.info("The label is: {}", item.label());
                logger.info("The status code is: {}", item.statusCode().toString());
            }
        }).exceptionally(exception -> {
            throw new RuntimeException("Failed to get metric data", exception);
        });
    }
```
+  For API details, see [GetMetricData](https://docs.aws.amazon.com/goto/SdkForJavaV2/monitoring-2010-08-01/GetMetricData) in *AWS SDK for Java 2.x API Reference*. 

------
#### [ Kotlin ]

**SDK for Kotlin**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/cloudwatch#code-examples). 

```
suspend fun getCustomMetricData(fileName: String) {
    // Read values from the JSON file.
    val parser = JsonFactory().createParser(File(fileName))
    val rootNode = ObjectMapper().readTree<JsonNode>(parser)
    val customMetricNamespace = rootNode.findValue("customMetricNamespace").asText()
    val customMetricName = rootNode.findValue("customMetricName").asText()

    // Set the date.
    val nowDate = Instant.now()
    val hours: Long = 1
    val minutes: Long = 30
    val date2 =
        nowDate.plus(hours, ChronoUnit.HOURS).plus(
            minutes,
            ChronoUnit.MINUTES,
        )

    val met =
        Metric {
            metricName = customMetricName
            namespace = customMetricNamespace
        }

    val metStat =
        MetricStat {
            stat = "Maximum"
            period = 1
            metric = met
        }

    val dataQUery =
        MetricDataQuery {
            metricStat = metStat
            id = "foo2"
            returnData = true
        }

    val dq = ArrayList<MetricDataQuery>()
    dq.add(dataQUery)
    val getMetReq =
        GetMetricDataRequest {
            maxDatapoints = 10
            scanBy = ScanBy.TimestampDescending
            startTime =
                aws.smithy.kotlin.runtime.time
                    .Instant(nowDate)
            endTime =
                aws.smithy.kotlin.runtime.time
                    .Instant(date2)
            metricDataQueries = dq
        }

    CloudWatchClient.fromEnvironment { region = "us-east-1" }.use { cwClient ->
        val response = cwClient.getMetricData(getMetReq)
        response.metricDataResults?.forEach { item ->
            println("The label is ${item.label}")
            println("The status code is ${item.statusCode}")
        }
    }
}
```
+  For API details, see [GetMetricData](https://sdk.amazonaws.com/kotlin/api/latest/index.html) in *AWS SDK for Kotlin API reference*. 

------

# Use `GetMetricStatistics` with an AWS SDK or CLI
<a name="cloudwatch_example_cloudwatch_GetMetricStatistics_section"></a>

The following code examples show how to use `GetMetricStatistics`.

Action examples are code excerpts from larger programs and must be run in context. You can see this action in context in the following code examples: 
+  [Learn the basics](cloudwatch_example_cloudwatch_GetStartedMetricsDashboardsAlarms_section.md) 
+  [Manage metrics and alarms](cloudwatch_example_cloudwatch_Usage_MetricsAlarms_section.md) 

------
#### [ .NET ]

**SDK for .NET (v4)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/CloudWatch#code-examples). 

```
    /// <summary>
    /// Get billing statistics using a call to a wrapper class.
    /// </summary>
    /// <returns>A collection of billing statistics.</returns>
    private static async Task<List<Datapoint>> SetupBillingStatistics()
    {
        // Make a request for EstimatedCharges with a period of one day for the past seven days.
        var billingStatistics = await _cloudWatchWrapper.GetMetricStatistics(
            "AWS/Billing",
            "EstimatedCharges",
            new List<string>() { "Maximum" },
            new List<Dimension>() { new Dimension { Name = "Currency", Value = "USD" } },
            7,
            86400);

        billingStatistics = billingStatistics.OrderBy(n => n.Timestamp).ToList();

        return billingStatistics;
    }

    /// <summary>
    /// Wrapper to get statistics for a specific CloudWatch metric.
    /// </summary>
    /// <param name="metricNamespace">The namespace of the metric.</param>
    /// <param name="metricName">The name of the metric.</param>
    /// <param name="statistics">The list of statistics to include.</param>
    /// <param name="dimensions">The list of dimensions to include.</param>
    /// <param name="days">The number of days in the past to include.</param>
    /// <param name="period">The period for the data.</param>
    /// <returns>A list of DataPoint objects for the statistics.</returns>
    public async Task<List<Datapoint>> GetMetricStatistics(string metricNamespace,
        string metricName, List<string> statistics, List<Dimension> dimensions, int days, int period)
    {
        var metricStatistics = await _amazonCloudWatch.GetMetricStatisticsAsync(
            new GetMetricStatisticsRequest()
            {
                Namespace = metricNamespace,
                MetricName = metricName,
                Dimensions = dimensions,
                Statistics = statistics,
                StartTimeUtc = DateTime.UtcNow.AddDays(-days),
                EndTimeUtc = DateTime.UtcNow,
                Period = period
            });

        return metricStatistics.Datapoints ?? new List<Datapoint>();
    }
```
+  For API details, see [GetMetricStatistics](https://docs.aws.amazon.com/goto/DotNetSDKV4/monitoring-2010-08-01/GetMetricStatistics) in *AWS SDK for .NET API Reference*. 

------
#### [ CLI ]

**AWS CLI**  
**To get the CPU utilization per EC2 instance**  
The following example uses the `get-metric-statistics` command to get the CPU utilization for an EC2 instance with the ID i-abcdef.  

```
aws cloudwatch get-metric-statistics --metric-name CPUUtilization --start-time 2014-04-08T23:18:00Z --end-time 2014-04-09T23:18:00Z --period 3600 --namespace AWS/EC2 --statistics Maximum --dimensions Name=InstanceId,Value=i-abcdef
```
Output:  

```
{
    "Datapoints": [
        {
            "Timestamp": "2014-04-09T11:18:00Z",
            "Maximum": 44.79,
            "Unit": "Percent"
        },
        {
            "Timestamp": "2014-04-09T20:18:00Z",
            "Maximum": 47.92,
            "Unit": "Percent"
        },
        {
            "Timestamp": "2014-04-09T19:18:00Z",
            "Maximum": 50.85,
            "Unit": "Percent"
        },
        {
            "Timestamp": "2014-04-09T09:18:00Z",
            "Maximum": 47.92,
            "Unit": "Percent"
        },
        {
            "Timestamp": "2014-04-09T03:18:00Z",
            "Maximum": 76.84,
            "Unit": "Percent"
        },
        {
            "Timestamp": "2014-04-09T21:18:00Z",
            "Maximum": 48.96,
            "Unit": "Percent"
        },
        {
            "Timestamp": "2014-04-09T14:18:00Z",
            "Maximum": 47.92,
            "Unit": "Percent"
        },
        {
            "Timestamp": "2014-04-09T08:18:00Z",
            "Maximum": 47.92,
            "Unit": "Percent"
        },
        {
            "Timestamp": "2014-04-09T16:18:00Z",
            "Maximum": 45.55,
            "Unit": "Percent"
        },
        {
            "Timestamp": "2014-04-09T06:18:00Z",
            "Maximum": 47.92,
            "Unit": "Percent"
        },
        {
            "Timestamp": "2014-04-09T13:18:00Z",
            "Maximum": 45.08,
            "Unit": "Percent"
        },
        {
            "Timestamp": "2014-04-09T05:18:00Z",
            "Maximum": 47.92,
            "Unit": "Percent"
        },
        {
            "Timestamp": "2014-04-09T18:18:00Z",
            "Maximum": 46.88,
            "Unit": "Percent"
        },
        {
            "Timestamp": "2014-04-09T17:18:00Z",
            "Maximum": 52.08,
            "Unit": "Percent"
        },
        {
            "Timestamp": "2014-04-09T07:18:00Z",
            "Maximum": 47.92,
            "Unit": "Percent"
        },
        {
            "Timestamp": "2014-04-09T02:18:00Z",
            "Maximum": 51.23,
            "Unit": "Percent"
        },
        {
            "Timestamp": "2014-04-09T12:18:00Z",
            "Maximum": 47.67,
            "Unit": "Percent"
        },
        {
            "Timestamp": "2014-04-08T23:18:00Z",
            "Maximum": 46.88,
            "Unit": "Percent"
        },
        {
            "Timestamp": "2014-04-09T10:18:00Z",
            "Maximum": 51.91,
            "Unit": "Percent"
        },
        {
            "Timestamp": "2014-04-09T04:18:00Z",
            "Maximum": 47.13,
            "Unit": "Percent"
        },
        {
            "Timestamp": "2014-04-09T15:18:00Z",
            "Maximum": 48.96,
            "Unit": "Percent"
        },
        {
            "Timestamp": "2014-04-09T00:18:00Z",
            "Maximum": 48.16,
            "Unit": "Percent"
        },
        {
            "Timestamp": "2014-04-09T01:18:00Z",
            "Maximum": 49.18,
            "Unit": "Percent"
        }
    ],
    "Label": "CPUUtilization"
}
```
**Specifying multiple dimensions**  
The following example illustrates how to specify multiple dimensions. Each dimension is specified as a Name/Value pair, with a comma between the name and the value. Multiple dimensions are separated by a space. If a single metric includes multiple dimensions, you must specify a value for every defined dimension.  
For more examples using the `get-metric-statistics` command, see Get Statistics for a Metric in the *Amazon CloudWatch Developer Guide*.  

```
aws cloudwatch get-metric-statistics --metric-name Buffers --namespace MyNameSpace --dimensions Name=InstanceID,Value=i-abcdef Name=InstanceType,Value=m1.small --start-time 2016-10-15T04:00:00Z --end-time 2016-10-19T07:00:00Z --statistics Average --period 60
```
+  For API details, see [GetMetricStatistics](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/cloudwatch/get-metric-statistics.html) in *AWS CLI Command Reference*. 

------
#### [ Java ]

**SDK for Java 2.x**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/cloudwatch#code-examples). 

```
    /**
     * Retrieves and displays metric statistics for the specified parameters.
     *
     * @param nameSpace    the namespace for the metric
     * @param metVal       the name of the metric
     * @param metricOption the statistic to retrieve for the metric (e.g., "Maximum", "Average")
     * @param date         the date for which to retrieve the metric statistics, in the format "yyyy-MM-dd'T'HH:mm:ss'Z'"
     * @param myDimension  the dimension(s) to filter the metric statistics by
     * @return a {@link CompletableFuture} that completes when the metric statistics have been retrieved and displayed
     */
    public CompletableFuture<GetMetricStatisticsResponse> getAndDisplayMetricStatisticsAsync(String nameSpace, String metVal,
                                                                                             String metricOption, String date, Dimension myDimension) {

        Instant start = Instant.parse(date);
        Instant endDate = Instant.now();

        // Building the request for metric statistics.
        GetMetricStatisticsRequest statisticsRequest = GetMetricStatisticsRequest.builder()
            .endTime(endDate)
            .startTime(start)
            .dimensions(myDimension)
            .metricName(metVal)
            .namespace(nameSpace)
            .period(86400) // 1 day period
            .statistics(Statistic.fromValue(metricOption))
            .build();

        return getAsyncClient().getMetricStatistics(statisticsRequest)
            .whenComplete((response, exception) -> {
                if (response != null) {
                    List<Datapoint> data = response.datapoints();
                    if (!data.isEmpty()) {
                        for (Datapoint datapoint : data) {
                            logger.info("Timestamp: {} Maximum value: {}", datapoint.timestamp(), datapoint.maximum());
                        }
                    } else {
                        logger.info("The returned data list is empty");
                    }
                } else {
                    logger.info("Failed to get metric statistics: {} ", exception.getMessage());
                }
            })
            .exceptionally(exception -> {
                throw new RuntimeException("Error while getting metric statistics: " + exception.getMessage(), exception);
            });
    }
```
+  For API details, see [GetMetricStatistics](https://docs.aws.amazon.com/goto/SdkForJavaV2/monitoring-2010-08-01/GetMetricStatistics) in *AWS SDK for Java 2.x API Reference*. 

------
#### [ Kotlin ]

**SDK for Kotlin**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/cloudwatch#code-examples). 

```
suspend fun getAndDisplayMetricStatistics(
    nameSpaceVal: String,
    metVal: String,
    metricOption: String,
    date: String,
    myDimension: Dimension,
) {
    val start = Instant.parse(date)
    val endDate = Instant.now()
    val statisticsRequest =
        GetMetricStatisticsRequest {
            endTime =
                aws.smithy.kotlin.runtime.time
                    .Instant(endDate)
            startTime =
                aws.smithy.kotlin.runtime.time
                    .Instant(start)
            dimensions = listOf(myDimension)
            metricName = metVal
            namespace = nameSpaceVal
            period = 86400
            statistics = listOf(Statistic.fromValue(metricOption))
        }

    CloudWatchClient { region = "us-east-1" }.use { cwClient ->
        val response = cwClient.getMetricStatistics(statisticsRequest)
        val data = response.datapoints
        if (data != null) {
            if (data.isNotEmpty()) {
                for (datapoint in data) {
                    println("Timestamp: ${datapoint.timestamp} Maximum value: ${datapoint.maximum}")
                }
            } else {
                println("The returned data list is empty")
            }
        }
    }
}
```
+  For API details, see [GetMetricStatistics](https://sdk.amazonaws.com/kotlin/api/latest/index.html) in *AWS SDK for Kotlin API reference*. 

------
#### [ Python ]

**SDK for Python (Boto3)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/cloudwatch#code-examples). 

```
class CloudWatchWrapper:
    """Encapsulates Amazon CloudWatch functions."""

    def __init__(self, cloudwatch_resource):
        """
        :param cloudwatch_resource: A Boto3 CloudWatch resource.
        """
        self.cloudwatch_resource = cloudwatch_resource


    def get_metric_statistics(self, namespace, name, start, end, period, stat_types):
        """
        Gets statistics for a metric within a specified time span. Metrics are grouped
        into the specified period.

        :param namespace: The namespace of the metric.
        :param name: The name of the metric.
        :param start: The UTC start time of the time span to retrieve.
        :param end: The UTC end time of the time span to retrieve.
        :param period: The period, in seconds, in which to group metrics. The period
                       must match the granularity of the metric, which depends on
                       the metric's age. For example, metrics that are older than
                       three hours have a one-minute granularity, so the period must
                       be at least 60 and must be a multiple of 60.
        :param stat_types: The type of statistics to retrieve, such as average value
                           or maximum value.
        :return: The retrieved statistics for the metric.
        """
        try:
            metric = self.cloudwatch_resource.Metric(namespace, name)
            stats = metric.get_statistics(
                StartTime=start, EndTime=end, Period=period, Statistics=stat_types
            )
            logger.info(
                "Got %s statistics for %s.", len(stats["Datapoints"]), stats["Label"]
            )
        except ClientError:
            logger.exception("Couldn't get statistics for %s.%s.", namespace, name)
            raise
        else:
            return stats
```
+  For API details, see [GetMetricStatistics](https://docs.aws.amazon.com/goto/boto3/monitoring-2010-08-01/GetMetricStatistics) in *AWS SDK for Python (Boto3) API Reference*. 

------
#### [ SAP ABAP ]

**SDK for SAP ABAP**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/cwt#code-examples). 

```
    TRY.
        oo_result = lo_cwt->getmetricstatistics(              " oo_result is returned for testing purposes. "
          iv_namespace   = iv_namespace
          iv_metricname  = iv_metric_name
          iv_starttime   = iv_start_time
          iv_endtime     = iv_end_time
          iv_period      = iv_period
          it_statistics  = it_statistics ).
        MESSAGE 'Metric statistics retrieved.' TYPE 'I'.
      CATCH /aws1/cx_cwtinvparamvalueex.
        MESSAGE 'The specified argument was not valid.' TYPE 'E'.
    ENDTRY.
```
+  For API details, see [GetMetricStatistics](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html) in *AWS SDK for SAP ABAP API reference*. 

------

# Use `GetMetricWidgetImage` with an AWS SDK or CLI
<a name="cloudwatch_example_cloudwatch_GetMetricWidgetImage_section"></a>

The following code examples show how to use `GetMetricWidgetImage`.

Action examples are code excerpts from larger programs and must be run in context. You can see this action in context in the following code example: 
+  [Learn the basics](cloudwatch_example_cloudwatch_GetStartedMetricsDashboardsAlarms_section.md) 

------
#### [ .NET ]

**SDK for .NET (v4)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/CloudWatch#code-examples). 

```
    /// <summary>
    /// Get an image for a metric graphed over time.
    /// </summary>
    /// <param name="metricNamespace">The namespace of the metric.</param>
    /// <param name="metric">The name of the metric.</param>
    /// <param name="stat">The name of the stat to chart.</param>
    /// <param name="period">The period to use for the chart.</param>
    /// <returns>A memory stream for the chart image.</returns>
    public async Task<MemoryStream> GetTimeSeriesMetricImage(string metricNamespace, string metric, string stat, int period)
    {
        var metricImageWidget = new
        {
            title = "Example Metric Graph",
            view = "timeSeries",
            stacked = false,
            period = period,
            width = 1400,
            height = 600,
            metrics = new List<List<object>>
                { new() { metricNamespace, metric, new { stat } } }
        };

        var metricImageWidgetString = JsonSerializer.Serialize(metricImageWidget);
        var imageResponse = await _amazonCloudWatch.GetMetricWidgetImageAsync(
            new GetMetricWidgetImageRequest()
            {
                MetricWidget = metricImageWidgetString
            });

        return imageResponse.MetricWidgetImage;
    }

    /// <summary>
    /// Save a metric image to a file.
    /// </summary>
    /// <param name="memoryStream">The MemoryStream for the metric image.</param>
    /// <param name="metricName">The name of the metric.</param>
    /// <returns>The path to the file.</returns>
    public string SaveMetricImage(MemoryStream memoryStream, string metricName)
    {
        var metricFileName = $"{metricName}_{DateTime.Now.Ticks}.png";
        using var sr = new StreamReader(memoryStream);
        // Writes the memory stream to a file.
        File.WriteAllBytes(metricFileName, memoryStream.ToArray());
        var filePath = Path.Join(AppDomain.CurrentDomain.BaseDirectory,
            metricFileName);
        return filePath;
    }
```
+  For API details, see [GetMetricWidgetImage](https://docs.aws.amazon.com/goto/DotNetSDKV4/monitoring-2010-08-01/GetMetricWidgetImage) in *AWS SDK for .NET API Reference*. 

------
#### [ CLI ]

**AWS CLI**  
**To retrieve a snapshot graph of CPUUtilization**  
The following `get-metric-widget-image` example retrieves snapshot graph for the metric `CPUUtilization` of the EC2 instance with the ID `i-abcde` and saves the retrieved image as a file named "image.png" on your local machine.  

```
aws cloudwatch get-metric-widget-image \
    --metric-widget '{"metrics":[["AWS/EC2","CPUUtilization","InstanceId","i-abcde"]]}' \
    --output-format png \
    --output text | base64 --decode > image.png
```
This command produces no output.  
+  For API details, see [GetMetricWidgetImage](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/cloudwatch/get-metric-widget-image.html) in *AWS CLI Command Reference*. 

------
#### [ Java ]

**SDK for Java 2.x**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/cloudwatch#code-examples). 

```
    /**
     * Retrieves and saves a custom metric image to a file.
     *
     * @param fileName the name of the file to save the metric image to
     * @return a {@link CompletableFuture} that completes when the image has been saved to the file
     */
    public CompletableFuture<Void> downloadAndSaveMetricImageAsync(String fileName) {
        logger.info("Getting Image data for custom metric.");
        String myJSON = """
              {
                  "title": "Example Metric Graph",
                  "view": "timeSeries",
                  "stacked ": false,
                  "period": 10,
                  "width": 1400,
                  "height": 600,
                  "metrics": [
                      [
                      "AWS/Billing",
                      "EstimatedCharges",
                      "Currency",
                      "USD"
                     ]
                  ]
              }
            """;

        GetMetricWidgetImageRequest imageRequest = GetMetricWidgetImageRequest.builder()
            .metricWidget(myJSON)
            .build();

        return getAsyncClient().getMetricWidgetImage(imageRequest)
            .thenCompose(response -> {
                SdkBytes sdkBytes = response.metricWidgetImage();
                byte[] bytes = sdkBytes.asByteArray();
                return CompletableFuture.runAsync(() -> {
                    try {
                        File outputFile = new File(fileName);
                        try (FileOutputStream outputStream = new FileOutputStream(outputFile)) {
                            outputStream.write(bytes);
                        }
                    } catch (IOException e) {
                        throw new RuntimeException("Failed to write image to file", e);
                    }
                });
            })
            .whenComplete((result, exception) -> {
                if (exception != null) {
                    throw new RuntimeException("Error getting and saving metric image", exception);
                } else {
                    logger.info("Image data saved successfully to {}", fileName);
                }
            });
    }
```
+  For API details, see [GetMetricWidgetImage](https://docs.aws.amazon.com/goto/SdkForJavaV2/monitoring-2010-08-01/GetMetricWidgetImage) in *AWS SDK for Java 2.x API Reference*. 

------
#### [ Kotlin ]

**SDK for Kotlin**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/cloudwatch#code-examples). 

```
suspend fun getAndOpenMetricImage(fileName: String) {
    println("Getting Image data for custom metric.")
    val myJSON = """{
        "title": "Example Metric Graph",
        "view": "timeSeries",
        "stacked ": false,
        "period": 10,
        "width": 1400,
        "height": 600,
        "metrics": [
            [
            "AWS/Billing",
            "EstimatedCharges",
            "Currency",
            "USD"
            ]
        ]
        }"""

    val imageRequest =
        GetMetricWidgetImageRequest {
            metricWidget = myJSON
        }

    CloudWatchClient.fromEnvironment { region = "us-east-1" }.use { cwClient ->
        val response = cwClient.getMetricWidgetImage(imageRequest)
        val bytes = response.metricWidgetImage
        if (bytes != null) {
            File(fileName).writeBytes(bytes)
        }
    }
    println("You have successfully written data to $fileName")
}
```
+  For API details, see [GetMetricWidgetImage](https://sdk.amazonaws.com/kotlin/api/latest/index.html) in *AWS SDK for Kotlin API reference*. 

------

# Use `ListDashboards` with an AWS SDK or CLI
<a name="cloudwatch_example_cloudwatch_ListDashboards_section"></a>

The following code examples show how to use `ListDashboards`.

Action examples are code excerpts from larger programs and must be run in context. You can see this action in context in the following code example: 
+  [Creating a CloudWatch dashboard with function name as a variable](cloudwatch_example_cloudwatch_GettingStarted_031_section.md) 

------
#### [ .NET ]

**SDK for .NET (v4)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/CloudWatch#code-examples). 

```
    /// <summary>
    /// Get a list of dashboards.
    /// </summary>
    /// <returns>A list of DashboardEntry objects.</returns>
    public async Task<List<DashboardEntry>> ListDashboards()
    {
        var results = new List<DashboardEntry>();
        var paginateDashboards = _amazonCloudWatch.Paginators.ListDashboards(
            new ListDashboardsRequest());
        // Get the entire list using the paginator.
        await foreach (var data in paginateDashboards.DashboardEntries)
        {
            results.Add(data);
        }

        return results;
    }
```
+  For API details, see [ListDashboards](https://docs.aws.amazon.com/goto/DotNetSDKV4/monitoring-2010-08-01/ListDashboards) in *AWS SDK for .NET API Reference*. 

------
#### [ CLI ]

**AWS CLI**  
**To retrieve a list of Dashboards**  
The following `list-dashboards` example lists all the Dashboards in the specified account.  

```
aws cloudwatch list-dashboards
```
Output:  

```
{
    "DashboardEntries": [
        {
            "DashboardName": "Dashboard-A",
            "DashboardArn": "arn:aws:cloudwatch::123456789012:dashboard/Dashboard-A",
            "LastModified": "2024-10-11T18:40:11+00:00",
            "Size": 271
        },
        {
            "DashboardName": "Dashboard-B",
            "DashboardArn": "arn:aws:cloudwatch::123456789012:dashboard/Dashboard-B",
            "LastModified": "2024-10-11T18:44:41+00:00",
            "Size": 522
        }
    ]
}
```
For more information, see [Amazon CloudWatch dashboards](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/CloudWatch_Dashboards.html) in the *Amazon CloudWatch User Guide*.  
+  For API details, see [ListDashboards](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/cloudwatch/list-dashboards.html) in *AWS CLI Command Reference*. 

------
#### [ Java ]

**SDK for Java 2.x**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/cloudwatch#code-examples). 

```
    /**
     * Lists the available dashboards.
     *
     * @return a {@link CompletableFuture} that completes when the operation is finished.
     * The future will complete exceptionally if an error occurs while listing the dashboards.
     */
    public CompletableFuture<Void> listDashboardsAsync() {
        ListDashboardsRequest listDashboardsRequest = ListDashboardsRequest.builder().build();
        ListDashboardsPublisher paginator = getAsyncClient().listDashboardsPaginator(listDashboardsRequest);
        return paginator.subscribe(response -> {
            response.dashboardEntries().forEach(entry -> {
                logger.info("Dashboard name is: {} ", entry.dashboardName());
                logger.info("Dashboard ARN is: {} ", entry.dashboardArn());
            });
        }).exceptionally(ex -> {
            logger.info("Failed to list dashboards: {} ", ex.getMessage());
            throw new RuntimeException("Error occurred while listing dashboards", ex);
        });
    }
```
+  For API details, see [ListDashboards](https://docs.aws.amazon.com/goto/SdkForJavaV2/monitoring-2010-08-01/ListDashboards) in *AWS SDK for Java 2.x API Reference*. 

------
#### [ Kotlin ]

**SDK for Kotlin**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/cloudwatch#code-examples). 

```
suspend fun listDashboards() {
    CloudWatchClient { region = "us-east-1" }.use { cwClient ->
        cwClient
            .listDashboardsPaginated({})
            .transform { it.dashboardEntries?.forEach { obj -> emit(obj) } }
            .collect { obj ->
                println("Name is ${obj.dashboardName}")
                println("Dashboard ARN is ${obj.dashboardArn}")
            }
    }
}
```
+  For API details, see [ListDashboards](https://sdk.amazonaws.com/kotlin/api/latest/index.html) in *AWS SDK for Kotlin API reference*. 

------
#### [ PowerShell ]

**Tools for PowerShell V4**  
**Example 1: Returns the collection of dashboards for your account.**  

```
Get-CWDashboardList
```
**Output:**  

```
DashboardArn DashboardName LastModified        Size
------------ ------------- ------------        ----
arn:...      Dashboard1    7/6/2017 8:14:15 PM 252
```
**Example 2: Returns the collection of dashboards for your account whose names start with the prefix 'dev'.**  

```
Get-CWDashboardList -DashboardNamePrefix dev
```
+  For API details, see [ListDashboards](https://docs.aws.amazon.com/powershell/v4/reference) in *AWS Tools for PowerShell Cmdlet Reference (V4)*. 

**Tools for PowerShell V5**  
**Example 1: Returns the collection of dashboards for your account.**  

```
Get-CWDashboardList
```
**Output:**  

```
DashboardArn DashboardName LastModified        Size
------------ ------------- ------------        ----
arn:...      Dashboard1    7/6/2017 8:14:15 PM 252
```
**Example 2: Returns the collection of dashboards for your account whose names start with the prefix 'dev'.**  

```
Get-CWDashboardList -DashboardNamePrefix dev
```
+  For API details, see [ListDashboards](https://docs.aws.amazon.com/powershell/v5/reference) in *AWS Tools for PowerShell Cmdlet Reference (V5)*. 

------

# Use `ListMetrics` with an AWS SDK or CLI
<a name="cloudwatch_example_cloudwatch_ListMetrics_section"></a>

The following code examples show how to use `ListMetrics`.

Action examples are code excerpts from larger programs and must be run in context. You can see this action in context in the following code examples: 
+  [Learn the basics](cloudwatch_example_cloudwatch_GetStartedMetricsDashboardsAlarms_section.md) 
+  [Manage metrics and alarms](cloudwatch_example_cloudwatch_Usage_MetricsAlarms_section.md) 

------
#### [ .NET ]

**SDK for .NET (v4)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/CloudWatch#code-examples). 

```
    /// <summary>
    /// List metrics available, optionally within a namespace.
    /// </summary>
    /// <param name="metricNamespace">Optional CloudWatch namespace to use when listing metrics.</param>
    /// <param name="filter">Optional dimension filter.</param>
    /// <param name="metricName">Optional metric name filter.</param>
    /// <returns>The list of metrics.</returns>
    public async Task<List<Metric>> ListMetrics(string? metricNamespace = null, DimensionFilter? filter = null, string? metricName = null)
    {
        var results = new List<Metric>();
        var paginateMetrics = _amazonCloudWatch.Paginators.ListMetrics(
            new ListMetricsRequest
            {
                Namespace = metricNamespace,
                Dimensions = filter != null ? new List<DimensionFilter> { filter } : null,
                MetricName = metricName
            });
        // Get the entire list using the paginator.
        await foreach (var metric in paginateMetrics.Metrics)
        {
            results.Add(metric);
        }

        return results;
    }
```
+  For API details, see [ListMetrics](https://docs.aws.amazon.com/goto/DotNetSDKV4/monitoring-2010-08-01/ListMetrics) in *AWS SDK for .NET API Reference*. 

------
#### [ C\$1\$1 ]

**SDK for C\$1\$1**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/cpp/example_code/cloudwatch#code-examples). 
Include the required files.  

```
#include <aws/core/Aws.h>
#include <aws/monitoring/CloudWatchClient.h>
#include <aws/monitoring/model/ListMetricsRequest.h>
#include <aws/monitoring/model/ListMetricsResult.h>
#include <iomanip>
#include <iostream>
```
List the metrics.  

```
        Aws::CloudWatch::CloudWatchClient cw;
        Aws::CloudWatch::Model::ListMetricsRequest request;

        if (argc > 1)
        {
            request.SetMetricName(argv[1]);
        }

        if (argc > 2)
        {
            request.SetNamespace(argv[2]);
        }

        bool done = false;
        bool header = false;
        while (!done)
        {
            auto outcome = cw.ListMetrics(request);
            if (!outcome.IsSuccess())
            {
                std::cout << "Failed to list CloudWatch metrics:" <<
                    outcome.GetError().GetMessage() << std::endl;
                break;
            }

            if (!header)
            {
                std::cout << std::left << std::setw(48) << "MetricName" <<
                    std::setw(32) << "Namespace" << "DimensionNameValuePairs" <<
                    std::endl;
                header = true;
            }

            const auto &metrics = outcome.GetResult().GetMetrics();
            for (const auto &metric : metrics)
            {
                std::cout << std::left << std::setw(48) <<
                    metric.GetMetricName() << std::setw(32) <<
                    metric.GetNamespace();
                const auto &dimensions = metric.GetDimensions();
                for (auto iter = dimensions.cbegin();
                    iter != dimensions.cend(); ++iter)
                {
                    const auto &dimkv = *iter;
                    std::cout << dimkv.GetName() << " = " << dimkv.GetValue();
                    if (iter + 1 != dimensions.cend())
                    {
                        std::cout << ", ";
                    }
                }
                std::cout << std::endl;
            }

            const auto &next_token = outcome.GetResult().GetNextToken();
            request.SetNextToken(next_token);
            done = next_token.empty();
        }
```
+  For API details, see [ListMetrics](https://docs.aws.amazon.com/goto/SdkForCpp/monitoring-2010-08-01/ListMetrics) in *AWS SDK for C\$1\$1 API Reference*. 

------
#### [ CLI ]

**AWS CLI**  
**To list the metrics for Amazon SNS**  
The following `list-metrics` example displays the metrics for Amazon SNS.  

```
aws cloudwatch list-metrics \
    --namespace "AWS/SNS"
```
Output:  

```
{
    "Metrics": [
        {
            "Namespace": "AWS/SNS",
            "Dimensions": [
                {
                    "Name": "TopicName",
                    "Value": "NotifyMe"
                }
            ],
            "MetricName": "PublishSize"
        },
        {
            "Namespace": "AWS/SNS",
            "Dimensions": [
                {
                    "Name": "TopicName",
                    "Value": "CFO"
                }
            ],
            "MetricName": "PublishSize"
        },
        {
            "Namespace": "AWS/SNS",
            "Dimensions": [
                {
                    "Name": "TopicName",
                    "Value": "NotifyMe"
                }
            ],
            "MetricName": "NumberOfNotificationsFailed"
        },
        {
            "Namespace": "AWS/SNS",
            "Dimensions": [
                {
                    "Name": "TopicName",
                    "Value": "NotifyMe"
                }
            ],
            "MetricName": "NumberOfNotificationsDelivered"
        },
        {
            "Namespace": "AWS/SNS",
            "Dimensions": [
                {
                    "Name": "TopicName",
                    "Value": "NotifyMe"
                }
            ],
            "MetricName": "NumberOfMessagesPublished"
        },
        {
            "Namespace": "AWS/SNS",
            "Dimensions": [
                {
                    "Name": "TopicName",
                    "Value": "CFO"
                }
            ],
            "MetricName": "NumberOfMessagesPublished"
        },
        {
            "Namespace": "AWS/SNS",
            "Dimensions": [
                {
                    "Name": "TopicName",
                    "Value": "CFO"
                }
            ],
            "MetricName": "NumberOfNotificationsDelivered"
        },
        {
            "Namespace": "AWS/SNS",
            "Dimensions": [
                {
                    "Name": "TopicName",
                    "Value": "CFO"
                }
            ],
            "MetricName": "NumberOfNotificationsFailed"
        }
    ]
}
```
+  For API details, see [ListMetrics](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/cloudwatch/list-metrics.html) in *AWS CLI Command Reference*. 

------
#### [ Java ]

**SDK for Java 2.x**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/cloudwatch#code-examples). 

```
    /**
     * Retrieves a list of metric names for the specified namespace.
     *
     * @param namespace the namespace for which to retrieve the metric names
     * @return a {@link CompletableFuture} that, when completed, contains an {@link ArrayList} of
     * the metric names in the specified namespace
     * @throws RuntimeException if an error occurs while listing the metrics
     */
    public CompletableFuture<ArrayList<String>> listMetsAsync(String namespace) {
        ListMetricsRequest request = ListMetricsRequest.builder()
            .namespace(namespace)
            .build();

        ListMetricsPublisher metricsPaginator = getAsyncClient().listMetricsPaginator(request);
        Set<String> metSet = new HashSet<>();
        CompletableFuture<Void> future = metricsPaginator.subscribe(response -> {
            response.metrics().forEach(metric -> {
                String metricName = metric.metricName();
                metSet.add(metricName);
            });
        });

        return future
            .thenApply(ignored -> new ArrayList<>(metSet))
            .exceptionally(exception -> {
                throw new RuntimeException("Failed to list metrics: " + exception.getMessage(), exception);
            });
    }
```
+  For API details, see [ListMetrics](https://docs.aws.amazon.com/goto/SdkForJavaV2/monitoring-2010-08-01/ListMetrics) in *AWS SDK for Java 2.x API Reference*. 

------
#### [ JavaScript ]

**SDK for JavaScript (v3)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascriptv3/example_code/cloudwatch#code-examples). 
Import the SDK and client modules and call the API.  

```
import {
  CloudWatchServiceException,
  ListMetricsCommand,
} from "@aws-sdk/client-cloudwatch";
import { client } from "../libs/client.js";

export const main = async () => {
  // Use the AWS console to see available namespaces and metric names. Custom metrics can also be created.
  // https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/viewing_metrics_with_cloudwatch.html
  const command = new ListMetricsCommand({
    Dimensions: [
      {
        Name: "LogGroupName",
      },
    ],
    MetricName: "IncomingLogEvents",
    Namespace: "AWS/Logs",
  });

  try {
    const response = await client.send(command);
    console.log(`Metrics count: ${response.Metrics?.length}`);
    return response;
  } catch (caught) {
    if (caught instanceof CloudWatchServiceException) {
      console.error(`Error from CloudWatch. ${caught.name}: ${caught.message}`);
    } else {
      throw caught;
    }
  }
};
```
Create the client in a separate module and export it.  

```
import { CloudWatchClient } from "@aws-sdk/client-cloudwatch";

export const client = new CloudWatchClient({});
```
+  For more information, see [AWS SDK for JavaScript Developer Guide](https://docs.aws.amazon.com/sdk-for-javascript/v3/developer-guide/cloudwatch-examples-getting-metrics.html#cloudwatch-examples-getting-metrics-listing). 
+  For API details, see [ListMetrics](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/client/cloudwatch/command/ListMetricsCommand) in *AWS SDK for JavaScript API Reference*. 

**SDK for JavaScript (v2)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/cloudwatch#code-examples). 

```
// 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));
  }
});
```
+  For more information, see [AWS SDK for JavaScript Developer Guide](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-getting-metrics.html#cloudwatch-examples-getting-metrics-listing). 
+  For API details, see [ListMetrics](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/monitoring-2010-08-01/ListMetrics) in *AWS SDK for JavaScript API Reference*. 

------
#### [ Kotlin ]

**SDK for Kotlin**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/cloudwatch#code-examples). 

```
suspend fun listMets(namespaceVal: String?): ArrayList<String>? {
    val metList = ArrayList<String>()
    val request =
        ListMetricsRequest {
            namespace = namespaceVal
        }
    CloudWatchClient.fromEnvironment { region = "us-east-1" }.use { cwClient ->
        val reponse = cwClient.listMetrics(request)
        reponse.metrics?.forEach { metrics ->
            val data = metrics.metricName
            if (!metList.contains(data)) {
                metList.add(data!!)
            }
        }
    }
    return metList
}
```
+  For API details, see [ListMetrics](https://sdk.amazonaws.com/kotlin/api/latest/index.html) in *AWS SDK for Kotlin API reference*. 

------
#### [ Python ]

**SDK for Python (Boto3)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/cloudwatch#code-examples). 

```
class CloudWatchWrapper:
    """Encapsulates Amazon CloudWatch functions."""

    def __init__(self, cloudwatch_resource):
        """
        :param cloudwatch_resource: A Boto3 CloudWatch resource.
        """
        self.cloudwatch_resource = cloudwatch_resource


    def list_metrics(self, namespace, name, recent=False):
        """
        Gets the metrics within a namespace that have the specified name.
        If the metric has no dimensions, a single metric is returned.
        Otherwise, metrics for all dimensions are returned.

        :param namespace: The namespace of the metric.
        :param name: The name of the metric.
        :param recent: When True, only metrics that have been active in the last
                       three hours are returned.
        :return: An iterator that yields the retrieved metrics.
        """
        try:
            kwargs = {"Namespace": namespace, "MetricName": name}
            if recent:
                kwargs["RecentlyActive"] = "PT3H"  # List past 3 hours only
            metric_iter = self.cloudwatch_resource.metrics.filter(**kwargs)
            logger.info("Got metrics for %s.%s.", namespace, name)
        except ClientError:
            logger.exception("Couldn't get metrics for %s.%s.", namespace, name)
            raise
        else:
            return metric_iter
```
+  For API details, see [ListMetrics](https://docs.aws.amazon.com/goto/boto3/monitoring-2010-08-01/ListMetrics) in *AWS SDK for Python (Boto3) API Reference*. 

------
#### [ Ruby ]

**SDK for Ruby**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/cloudwatch#code-examples). 

```
# Lists available metrics for a metric namespace in Amazon CloudWatch.
#
# @param cloudwatch_client [Aws::CloudWatch::Client]
#   An initialized CloudWatch client.
# @param metric_namespace [String] The namespace of the metric.
# @example
#   list_metrics_for_namespace(
#     Aws::CloudWatch::Client.new(region: 'us-east-1'),
#     'SITE/TRAFFIC'
#   )
def list_metrics_for_namespace(cloudwatch_client, metric_namespace)
  response = cloudwatch_client.list_metrics(namespace: metric_namespace)

  if response.metrics.count.positive?
    response.metrics.each do |metric|
      puts "  Metric name: #{metric.metric_name}"
      if metric.dimensions.count.positive?
        puts '    Dimensions:'
        metric.dimensions.each do |dimension|
          puts "      Name: #{dimension.name}, Value: #{dimension.value}"
        end
      else
        puts 'No dimensions found.'
      end
    end
  else
    puts "No metrics found for namespace '#{metric_namespace}'. " \
      'Note that it could take up to 15 minutes for recently-added metrics ' \
      'to become available.'
  end
end

# Example usage:
def run_me
  metric_namespace = 'SITE/TRAFFIC'
  # Replace us-west-2 with the AWS Region you're using for Amazon CloudWatch.
  region = 'us-east-1'

  cloudwatch_client = Aws::CloudWatch::Client.new(region: region)

  # Add three datapoints.
  puts 'Continuing...' unless datapoint_added_to_metric?(
    cloudwatch_client,
    metric_namespace,
    'UniqueVisitors',
    'SiteName',
    'example.com',
    5_885.0,
    'Count'
  )

  puts 'Continuing...' unless datapoint_added_to_metric?(
    cloudwatch_client,
    metric_namespace,
    'UniqueVisits',
    'SiteName',
    'example.com',
    8_628.0,
    'Count'
  )

  puts 'Continuing...' unless datapoint_added_to_metric?(
    cloudwatch_client,
    metric_namespace,
    'PageViews',
    'PageURL',
    'example.html',
    18_057.0,
    'Count'
  )

  puts "Metrics for namespace '#{metric_namespace}':"
  list_metrics_for_namespace(cloudwatch_client, metric_namespace)
end

run_me if $PROGRAM_NAME == __FILE__
```
+  For API details, see [ListMetrics](https://docs.aws.amazon.com/goto/SdkForRubyV3/monitoring-2010-08-01/ListMetrics) in *AWS SDK for Ruby API Reference*. 

------
#### [ SAP ABAP ]

**SDK for SAP ABAP**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/cwt#code-examples). 

```
    "The following list-metrics example displays the metrics for Amazon CloudWatch."
    TRY.
        oo_result = lo_cwt->listmetrics(            " oo_result is returned for testing purposes. "
          iv_namespace = iv_namespace ).
        DATA(lt_metrics) = oo_result->get_metrics( ).
        MESSAGE 'Metrics retrieved.' TYPE 'I'.
      CATCH /aws1/cx_cwtinvparamvalueex.
        MESSAGE 'The specified argument was not valid.' TYPE 'E'.
    ENDTRY.
```
+  For API details, see [ListMetrics](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html) in *AWS SDK for SAP ABAP API reference*. 

------

# Use `PutAnomalyDetector` with an AWS SDK or CLI
<a name="cloudwatch_example_cloudwatch_PutAnomalyDetector_section"></a>

The following code examples show how to use `PutAnomalyDetector`.

Action examples are code excerpts from larger programs and must be run in context. You can see this action in context in the following code example: 
+  [Learn the basics](cloudwatch_example_cloudwatch_GetStartedMetricsDashboardsAlarms_section.md) 

------
#### [ .NET ]

**SDK for .NET (v4)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/CloudWatch#code-examples). 

```
    /// <summary>
    /// Add an anomaly detector for a single metric.
    /// </summary>
    /// <param name="anomalyDetector">A single metric anomaly detector.</param>
    /// <returns>True if successful.</returns>
    public async Task<bool> PutAnomalyDetector(SingleMetricAnomalyDetector anomalyDetector)
    {
        var putAlarmDetectorResult = await _amazonCloudWatch.PutAnomalyDetectorAsync(
            new PutAnomalyDetectorRequest()
            {
                SingleMetricAnomalyDetector = anomalyDetector
            });

        return putAlarmDetectorResult.HttpStatusCode == HttpStatusCode.OK;
    }
```
+  For API details, see [PutAnomalyDetector](https://docs.aws.amazon.com/goto/DotNetSDKV4/monitoring-2010-08-01/PutAnomalyDetector) in *AWS SDK for .NET API Reference*. 

------
#### [ CLI ]

**AWS CLI**  
**To create an anomaly detection model**  
The following `put-anomaly-detector` example creates an anomaly detection model for a CloudWatch metric.  

```
aws cloudwatch put-anomaly-detector \
    --namespace AWS/Logs \
    --metric-name IncomingBytes \
    --stat SampleCount
```
This command produces no output.  
For more information, see [Using CloudWatch anomaly detection](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/CloudWatch_Anomaly_Detection.html) in the *Amazon CloudWatch User Guide*.  
+  For API details, see [PutAnomalyDetector](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/cloudwatch/put-anomaly-detector.html) in *AWS CLI Command Reference*. 

------
#### [ Java ]

**SDK for Java 2.x**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/cloudwatch#code-examples). 

```
    /**
     * Adds an anomaly detector for the given file.
     *
     * @param fileName the name of the file containing the anomaly detector configuration
     * @return a {@link CompletableFuture} that completes when the anomaly detector has been added
     */
    public CompletableFuture<Void> addAnomalyDetectorAsync(String fileName) {
        CompletableFuture<JsonNode> readFileFuture = CompletableFuture.supplyAsync(() -> {
            try {
                JsonParser parser = new JsonFactory().createParser(new File(fileName));
                return new ObjectMapper().readTree(parser); // Return the root node
            } catch (IOException e) {
                throw new RuntimeException("Failed to read or parse the file", e);
            }
        });

        return readFileFuture.thenCompose(rootNode -> {
            try {
                String customMetricNamespace = rootNode.findValue("customMetricNamespace").asText();
                String customMetricName = rootNode.findValue("customMetricName").asText();

                SingleMetricAnomalyDetector singleMetricAnomalyDetector = SingleMetricAnomalyDetector.builder()
                    .metricName(customMetricName)
                    .namespace(customMetricNamespace)
                    .stat("Maximum")
                    .build();

                PutAnomalyDetectorRequest anomalyDetectorRequest = PutAnomalyDetectorRequest.builder()
                    .singleMetricAnomalyDetector(singleMetricAnomalyDetector)
                    .build();

                return getAsyncClient().putAnomalyDetector(anomalyDetectorRequest).thenAccept(response -> {
                    logger.info("Added anomaly detector for metric {}", customMetricName);
                });
            } catch (Exception e) {
                throw new RuntimeException("Failed to create anomaly detector", e);
            }
        }).whenComplete((result, exception) -> {
            if (exception != null) {
                throw new RuntimeException("Error adding anomaly detector", exception);
            }
        });
    }
```
+  For API details, see [PutAnomalyDetector](https://docs.aws.amazon.com/goto/SdkForJavaV2/monitoring-2010-08-01/PutAnomalyDetector) in *AWS SDK for Java 2.x API Reference*. 

------
#### [ Kotlin ]

**SDK for Kotlin**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/cloudwatch#code-examples). 

```
suspend fun addAnomalyDetector(fileName: String?) {
    // Read values from the JSON file.
    val parser = JsonFactory().createParser(File(fileName))
    val rootNode = ObjectMapper().readTree<JsonNode>(parser)
    val customMetricNamespace = rootNode.findValue("customMetricNamespace").asText()
    val customMetricName = rootNode.findValue("customMetricName").asText()

    val singleMetricAnomalyDetectorVal =
        SingleMetricAnomalyDetector {
            metricName = customMetricName
            namespace = customMetricNamespace
            stat = "Maximum"
        }

    val anomalyDetectorRequest =
        PutAnomalyDetectorRequest {
            singleMetricAnomalyDetector = singleMetricAnomalyDetectorVal
        }

    CloudWatchClient.fromEnvironment { region = "us-east-1" }.use { cwClient ->
        cwClient.putAnomalyDetector(anomalyDetectorRequest)
        println("Added anomaly detector for metric $customMetricName.")
    }
}
```
+  For API details, see [PutAnomalyDetector](https://sdk.amazonaws.com/kotlin/api/latest/index.html) in *AWS SDK for Kotlin API reference*. 

------

# Use `PutDashboard` with an AWS SDK or CLI
<a name="cloudwatch_example_cloudwatch_PutDashboard_section"></a>

The following code examples show how to use `PutDashboard`.

Action examples are code excerpts from larger programs and must be run in context. You can see this action in context in the following code examples: 
+  [Learn the basics](cloudwatch_example_cloudwatch_GetStartedMetricsDashboardsAlarms_section.md) 
+  [Creating a CloudWatch dashboard with function name as a variable](cloudwatch_example_cloudwatch_GettingStarted_031_section.md) 
+  [Using property variables in CloudWatch dashboards to monitor multiple Lambda functions](cloudwatch_example_iam_GettingStarted_032_section.md) 

------
#### [ .NET ]

**SDK for .NET (v4)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/CloudWatch#code-examples). 

```
    /// <summary>
    /// Set up a dashboard using a call to the wrapper class.
    /// </summary>
    /// <param name="customMetricNamespace">The metric namespace.</param>
    /// <param name="customMetricName">The metric name.</param>
    /// <param name="dashboardName">The name of the dashboard.</param>
    /// <returns>A list of validation messages.</returns>
    private static async Task<List<DashboardValidationMessage>> SetupDashboard(
        string customMetricNamespace, string customMetricName, string dashboardName)
    {
        // Get the dashboard model from configuration.
        var newDashboard = new DashboardModel();
        _configuration.GetSection("dashboardExampleBody").Bind(newDashboard);

        // Add a new metric to the dashboard.
        newDashboard.Widgets.Add(new Widget
        {
            Height = 8,
            Width = 8,
            Y = 8,
            X = 0,
            Type = "metric",
            Properties = new Properties
            {
                Metrics = new List<List<object>>
                    { new() { customMetricNamespace, customMetricName } },
                View = "timeSeries",
                Region = "us-east-1",
                Stat = "Sum",
                Period = 86400,
                YAxis = new YAxis { Left = new Left { Min = 0, Max = 100 } },
                Title = "Custom Metric Widget",
                LiveData = true,
                Sparkline = true,
                Trend = true,
                Stacked = false,
                SetPeriodToTimeRange = false
            }
        });

        var newDashboardString = JsonSerializer.Serialize(newDashboard,
            new JsonSerializerOptions
            { DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull });
        var validationMessages =
            await _cloudWatchWrapper.PutDashboard(dashboardName, newDashboardString);

        return validationMessages;
    }

    /// <summary>
    /// Wrapper to create or add to a dashboard with metrics.
    /// </summary>
    /// <param name="dashboardName">The name for the dashboard.</param>
    /// <param name="dashboardBody">The metric data in JSON for the dashboard.</param>
    /// <returns>A list of validation messages for the dashboard.</returns>
    public async Task<List<DashboardValidationMessage>> PutDashboard(string dashboardName,
        string dashboardBody)
    {
        // Updating a dashboard replaces all contents.
        // Best practice is to include a text widget indicating this dashboard was created programmatically.
        var dashboardResponse = await _amazonCloudWatch.PutDashboardAsync(
            new PutDashboardRequest()
            {
                DashboardName = dashboardName,
                DashboardBody = dashboardBody
            });

        return dashboardResponse.DashboardValidationMessages ?? new List<DashboardValidationMessage>();
    }
```
+  For API details, see [PutDashboard](https://docs.aws.amazon.com/goto/DotNetSDKV4/monitoring-2010-08-01/PutDashboard) in *AWS SDK for .NET API Reference*. 

------
#### [ CLI ]

**AWS CLI**  
**To create a dashboard**  
The following `put-dashboard` example creates a dashboard named `Dashboard-A` in the specified account.  

```
aws cloudwatch put-dashboard \
    --dashboard-name Dashboard-A \
    --dashboard-body '{"widgets":[{"height":6,"width":6,"y":0,"x":0,"type":"metric","properties":{"view":"timeSeries","stacked":false,"metrics":[["Namespace","CPUUtilization","Environment","Prod","Type","App"]],"region":"us-east-1"}}]}'
```
Output:  

```
{
    "DashboardValidationMessages": []
}
```
For more information, see [Creating a CloudWatch dashboard](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/create_dashboard.html) in the *Amazon CloudWatch User Guide*.  
+  For API details, see [PutDashboard](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/cloudwatch/put-dashboard.html) in *AWS CLI Command Reference*. 

------
#### [ Java ]

**SDK for Java 2.x**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/cloudwatch#code-examples). 

```
    /**
     * Creates a new dashboard with the specified name and metrics from the given file.
     *
     * @param dashboardName the name of the dashboard to be created
     * @param fileName      the name of the file containing the dashboard body
     * @return a {@link CompletableFuture} representing the asynchronous operation of creating the dashboard
     * @throws IOException if there is an error reading the dashboard body from the file
     */
    public CompletableFuture<PutDashboardResponse> createDashboardWithMetricsAsync(String dashboardName, String fileName) throws IOException {
        String dashboardBody = readFileAsString(fileName);
        PutDashboardRequest dashboardRequest = PutDashboardRequest.builder()
            .dashboardName(dashboardName)
            .dashboardBody(dashboardBody)
            .build();

        return getAsyncClient().putDashboard(dashboardRequest)
            .handle((response, ex) -> {
                if (ex != null) {
                    logger.info("Failed to create dashboard: {}", ex.getMessage());
                    throw new RuntimeException("Dashboard creation failed", ex);
                } else {
                    // Handle the normal response case
                    logger.info("{} was successfully created.", dashboardName);
                    List<DashboardValidationMessage> messages = response.dashboardValidationMessages();
                    if (messages.isEmpty()) {
                        logger.info("There are no messages in the new Dashboard.");
                    } else {
                        for (DashboardValidationMessage message : messages) {
                            logger.info("Message: {}", message.message());
                        }
                    }
                    return response; // Return the response for further use
                }
            });
    }
```
+  For API details, see [PutDashboard](https://docs.aws.amazon.com/goto/SdkForJavaV2/monitoring-2010-08-01/PutDashboard) in *AWS SDK for Java 2.x API Reference*. 

------
#### [ Kotlin ]

**SDK for Kotlin**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/cloudwatch#code-examples). 

```
suspend fun createDashboardWithMetrics(
    dashboardNameVal: String,
    fileNameVal: String,
) {
    val dashboardRequest =
        PutDashboardRequest {
            dashboardName = dashboardNameVal
            dashboardBody = readFileAsString(fileNameVal)
        }

    CloudWatchClient.fromEnvironment { region = "us-east-1" }.use { cwClient ->
        val response = cwClient.putDashboard(dashboardRequest)
        println("$dashboardNameVal was successfully created.")
        val messages = response.dashboardValidationMessages
        if (messages != null) {
            if (messages.isEmpty()) {
                println("There are no messages in the new Dashboard")
            } else {
                for (message in messages) {
                    println("Message is: ${message.message}")
                }
            }
        }
    }
}
```
+  For API details, see [PutDashboard](https://sdk.amazonaws.com/kotlin/api/latest/index.html) in *AWS SDK for Kotlin API reference*. 

------
#### [ PowerShell ]

**Tools for PowerShell V4**  
**Example 1: Creates or updates the dashboard named 'Dashboard1' to include two metric widgets side by side.**  

```
$dashBody = @"
{
    "widgets":[
        {
             "type":"metric",
             "x":0,
             "y":0,
             "width":12,
             "height":6,
             "properties":{
                "metrics":[
                   [
                      "AWS/EC2",
                      "CPUUtilization",
                      "InstanceId",
                      "i-012345"
                   ]
                ],
                "period":300,
                "stat":"Average",
                "region":"us-east-1",
                "title":"EC2 Instance CPU"
             }
        },
        {
             "type":"metric",
             "x":12,
             "y":0,
             "width":12,
             "height":6,
             "properties":{
                "metrics":[
                   [
                      "AWS/S3",
                      "BucketSizeBytes",
                      "BucketName",
                      "amzn-s3-demo-bucket"
                   ]
                ],
                "period":86400,
                "stat":"Maximum",
                "region":"us-east-1",
                "title":"amzn-s3-demo-bucket bytes"
            }
        }
    ]
}
"@

Write-CWDashboard -DashboardName Dashboard1 -DashboardBody $dashBody
```
**Example 2: Creates or updates the dashboard, piping the content describing the dashboard into the cmdlet.**  

```
$dashBody = @"
{
...
}
"@
        
$dashBody | Write-CWDashboard -DashboardName Dashboard1
```
+  For API details, see [PutDashboard](https://docs.aws.amazon.com/powershell/v4/reference) in *AWS Tools for PowerShell Cmdlet Reference (V4)*. 

**Tools for PowerShell V5**  
**Example 1: Creates or updates the dashboard named 'Dashboard1' to include two metric widgets side by side.**  

```
$dashBody = @"
{
    "widgets":[
        {
             "type":"metric",
             "x":0,
             "y":0,
             "width":12,
             "height":6,
             "properties":{
                "metrics":[
                   [
                      "AWS/EC2",
                      "CPUUtilization",
                      "InstanceId",
                      "i-012345"
                   ]
                ],
                "period":300,
                "stat":"Average",
                "region":"us-east-1",
                "title":"EC2 Instance CPU"
             }
        },
        {
             "type":"metric",
             "x":12,
             "y":0,
             "width":12,
             "height":6,
             "properties":{
                "metrics":[
                   [
                      "AWS/S3",
                      "BucketSizeBytes",
                      "BucketName",
                      "amzn-s3-demo-bucket"
                   ]
                ],
                "period":86400,
                "stat":"Maximum",
                "region":"us-east-1",
                "title":"amzn-s3-demo-bucket bytes"
            }
        }
    ]
}
"@

Write-CWDashboard -DashboardName Dashboard1 -DashboardBody $dashBody
```
**Example 2: Creates or updates the dashboard, piping the content describing the dashboard into the cmdlet.**  

```
$dashBody = @"
{
...
}
"@
        
$dashBody | Write-CWDashboard -DashboardName Dashboard1
```
+  For API details, see [PutDashboard](https://docs.aws.amazon.com/powershell/v5/reference) in *AWS Tools for PowerShell Cmdlet Reference (V5)*. 

------

# Use `PutMetricAlarm` with an AWS SDK or CLI
<a name="cloudwatch_example_cloudwatch_PutMetricAlarm_section"></a>

The following code examples show how to use `PutMetricAlarm`.

Action examples are code excerpts from larger programs and must be run in context. You can see this action in context in the following code examples: 
+  [Learn the basics](cloudwatch_example_cloudwatch_GetStartedMetricsDashboardsAlarms_section.md) 
+  [Get started with alarms](cloudwatch_example_cloudwatch_Scenario_GettingStarted_section.md) 
+  [Manage metrics and alarms](cloudwatch_example_cloudwatch_Usage_MetricsAlarms_section.md) 
+  [Run CPU stress tests on EC2 instances using FIS](cloudwatch_example_iam_GettingStarted_069_section.md) 

------
#### [ .NET ]

**SDK for .NET (v4)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/CloudWatch#code-examples). 

```
    /// <summary>
    /// Add a metric alarm to send an email when the metric passes a threshold.
    /// </summary>
    /// <param name="alarmDescription">A description of the alarm.</param>
    /// <param name="alarmName">The name for the alarm.</param>
    /// <param name="comparison">The type of comparison to use.</param>
    /// <param name="metricName">The name of the metric for the alarm.</param>
    /// <param name="metricNamespace">The namespace of the metric.</param>
    /// <param name="threshold">The threshold value for the alarm.</param>
    /// <param name="alarmActions">Optional actions to execute when in an alarm state.</param>
    /// <returns>True if successful.</returns>
    public async Task<bool> PutMetricEmailAlarm(string alarmDescription, string alarmName, ComparisonOperator comparison,
        string metricName, string metricNamespace, double threshold, List<string> alarmActions = null!)
    {
        try
        {
            var putEmailAlarmResponse = await _amazonCloudWatch.PutMetricAlarmAsync(
                new PutMetricAlarmRequest()
                {
                    AlarmActions = alarmActions,
                    AlarmDescription = alarmDescription,
                    AlarmName = alarmName,
                    ComparisonOperator = comparison,
                    Threshold = threshold,
                    Namespace = metricNamespace,
                    MetricName = metricName,
                    EvaluationPeriods = 1,
                    Period = 10,
                    Statistic = new Statistic("Maximum"),
                    DatapointsToAlarm = 1,
                    TreatMissingData = "ignore"
                });
            return putEmailAlarmResponse.HttpStatusCode == HttpStatusCode.OK;
        }
        catch (LimitExceededException lex)
        {
            _logger.LogError(lex, $"Unable to add alarm {alarmName}. Alarm quota has already been reached.");
        }

        return false;
    }

    /// <summary>
    /// Add specific email actions to a list of action strings for a CloudWatch alarm.
    /// </summary>
    /// <param name="accountId">The AccountId for the alarm.</param>
    /// <param name="region">The region for the alarm.</param>
    /// <param name="emailTopicName">An Amazon Simple Notification Service (SNS) topic for the alarm email.</param>
    /// <param name="alarmActions">Optional list of existing alarm actions to append to.</param>
    /// <returns>A list of string actions for an alarm.</returns>
    public List<string> AddEmailAlarmAction(string accountId, string region,
        string emailTopicName, List<string>? alarmActions = null)
    {
        alarmActions ??= new List<string>();
        var snsAlarmAction = $"arn:aws:sns:{region}:{accountId}:{emailTopicName}";
        alarmActions.Add(snsAlarmAction);
        return alarmActions;
    }
```
+  For API details, see [PutMetricAlarm](https://docs.aws.amazon.com/goto/DotNetSDKV4/monitoring-2010-08-01/PutMetricAlarm) in *AWS SDK for .NET API Reference*. 

------
#### [ C\$1\$1 ]

**SDK for C\$1\$1**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/cpp/example_code/cloudwatch#code-examples). 
Include the required files.  

```
#include <aws/core/Aws.h>
#include <aws/monitoring/CloudWatchClient.h>
#include <aws/monitoring/model/PutMetricAlarmRequest.h>
#include <iostream>
```
Create the alarm to watch the metric.  

```
        Aws::CloudWatch::CloudWatchClient cw;
        Aws::CloudWatch::Model::PutMetricAlarmRequest request;
        request.SetAlarmName(alarm_name);
        request.SetComparisonOperator(
            Aws::CloudWatch::Model::ComparisonOperator::GreaterThanThreshold);
        request.SetEvaluationPeriods(1);
        request.SetMetricName("CPUUtilization");
        request.SetNamespace("AWS/EC2");
        request.SetPeriod(60);
        request.SetStatistic(Aws::CloudWatch::Model::Statistic::Average);
        request.SetThreshold(70.0);
        request.SetActionsEnabled(false);
        request.SetAlarmDescription("Alarm when server CPU exceeds 70%");
        request.SetUnit(Aws::CloudWatch::Model::StandardUnit::Seconds);

        Aws::CloudWatch::Model::Dimension dimension;
        dimension.SetName("InstanceId");
        dimension.SetValue(instanceId);

        request.AddDimensions(dimension);

        auto outcome = cw.PutMetricAlarm(request);
        if (!outcome.IsSuccess())
        {
            std::cout << "Failed to create CloudWatch alarm:" <<
                outcome.GetError().GetMessage() << std::endl;
        }
        else
        {
            std::cout << "Successfully created CloudWatch alarm " << alarm_name
                << std::endl;
        }
```
+  For API details, see [PutMetricAlarm](https://docs.aws.amazon.com/goto/SdkForCpp/monitoring-2010-08-01/PutMetricAlarm) in *AWS SDK for C\$1\$1 API Reference*. 

------
#### [ CLI ]

**AWS CLI**  
**To send an Amazon Simple Notification Service email message when CPU utilization exceeds 70 percent**  
The following example uses the `put-metric-alarm` command to send an Amazon Simple Notification Service email message when CPU utilization exceeds 70 percent:  

```
aws cloudwatch put-metric-alarm --alarm-name cpu-mon --alarm-description "Alarm when CPU exceeds 70 percent" --metric-name CPUUtilization --namespace AWS/EC2 --statistic Average --period 300 --threshold 70 --comparison-operator GreaterThanThreshold  --dimensions "Name=InstanceId,Value=i-12345678" --evaluation-periods 2 --alarm-actions arn:aws:sns:us-east-1:111122223333:MyTopic --unit Percent
```
This command returns to the prompt if successful. If an alarm with the same name already exists, it will be overwritten by the new alarm.  
**To specify multiple dimensions**  
The following example illustrates how to specify multiple dimensions. Each dimension is specified as a Name/Value pair, with a comma between the name and the value. Multiple dimensions are separated by a space:  

```
aws cloudwatch put-metric-alarm --alarm-name "Default_Test_Alarm3" --alarm-description "The default example alarm" --namespace "CW EXAMPLE METRICS" --metric-name Default_Test --statistic Average --period 60 --evaluation-periods 3 --threshold 50 --comparison-operator GreaterThanOrEqualToThreshold --dimensions Name=key1,Value=value1 Name=key2,Value=value2
```
+  For API details, see [PutMetricAlarm](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/cloudwatch/put-metric-alarm.html) in *AWS CLI Command Reference*. 

------
#### [ Java ]

**SDK for Java 2.x**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/cloudwatch#code-examples). 

```
    /**
     * Creates an alarm based on the configuration provided in a JSON file.
     *
     * @param fileName the name of the JSON file containing the alarm configuration
     * @return a CompletableFuture that represents the asynchronous operation of creating the alarm
     * @throws RuntimeException if an exception occurs while reading the JSON file or creating the alarm
     */
    public CompletableFuture<String> createAlarmAsync(String fileName) {
        com.fasterxml.jackson.databind.JsonNode rootNode;
        try {
            JsonParser parser = new JsonFactory().createParser(new File(fileName));
            rootNode = new ObjectMapper().readTree(parser);
        } catch (IOException e) {
            throw new RuntimeException("Failed to read the alarm configuration file", e);
        }

        // Extract values from the JSON node.
        String customMetricNamespace = rootNode.findValue("customMetricNamespace").asText();
        String customMetricName = rootNode.findValue("customMetricName").asText();
        String alarmName = rootNode.findValue("exampleAlarmName").asText();
        String emailTopic = rootNode.findValue("emailTopic").asText();
        String accountId = rootNode.findValue("accountId").asText();
        String region = rootNode.findValue("region").asText();

        // Create a List for alarm actions.
        List<String> alarmActions = new ArrayList<>();
        alarmActions.add("arn:aws:sns:" + region + ":" + accountId + ":" + emailTopic);

        PutMetricAlarmRequest alarmRequest = PutMetricAlarmRequest.builder()
            .alarmActions(alarmActions)
            .alarmDescription("Example metric alarm")
            .alarmName(alarmName)
            .comparisonOperator(ComparisonOperator.GREATER_THAN_OR_EQUAL_TO_THRESHOLD)
            .threshold(100.00)
            .metricName(customMetricName)
            .namespace(customMetricNamespace)
            .evaluationPeriods(1)
            .period(10)
            .statistic("Maximum")
            .datapointsToAlarm(1)
            .treatMissingData("ignore")
            .build();

        // Call the putMetricAlarm asynchronously and handle the result.
        return getAsyncClient().putMetricAlarm(alarmRequest)
            .handle((response, ex) -> {
                if (ex != null) {
                    logger.info("Failed to create alarm: {}", ex.getMessage());
                    throw new RuntimeException("Failed to create alarm", ex);
                } else {
                    logger.info("{} was successfully created!", alarmName);
                    return alarmName;
                }
            });
    }
```
+  For API details, see [PutMetricAlarm](https://docs.aws.amazon.com/goto/SdkForJavaV2/monitoring-2010-08-01/PutMetricAlarm) in *AWS SDK for Java 2.x API Reference*. 

------
#### [ JavaScript ]

**SDK for JavaScript (v3)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascriptv3/example_code/cloudwatch#code-examples). 
Import the SDK and client modules and call the API.  

```
import { PutMetricAlarmCommand } from "@aws-sdk/client-cloudwatch";
import { client } from "../libs/client.js";

const run = async () => {
  // This alarm triggers when CPUUtilization exceeds 70% for one minute.
  const command = new PutMetricAlarmCommand({
    AlarmName: process.env.CLOUDWATCH_ALARM_NAME, // Set the value of CLOUDWATCH_ALARM_NAME to the name of an existing alarm.
    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: process.env.EC2_INSTANCE_ID, // Set the value of EC_INSTANCE_ID to the Id of an existing Amazon EC2 instance.
      },
    ],
    Unit: "Percent",
  });

  try {
    return await client.send(command);
  } catch (err) {
    console.error(err);
  }
};

export default run();
```
Create the client in a separate module and export it.  

```
import { CloudWatchClient } from "@aws-sdk/client-cloudwatch";

export const client = new CloudWatchClient({});
```
+  For more information, see [AWS SDK for JavaScript Developer Guide](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-creating-alarms.html#cloudwatch-examples-creating-alarms-putmetricalarm). 
+  For API details, see [PutMetricAlarm](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/client/cloudwatch/command/PutMetricAlarmCommand) in *AWS SDK for JavaScript API Reference*. 

**SDK for JavaScript (v2)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/cloudwatch#code-examples). 

```
// 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);
  }
});
```
+  For more information, see [AWS SDK for JavaScript Developer Guide](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-creating-alarms.html#cloudwatch-examples-creating-alarms-putmetricalarm). 
+  For API details, see [PutMetricAlarm](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/monitoring-2010-08-01/PutMetricAlarm) in *AWS SDK for JavaScript API Reference*. 

------
#### [ Kotlin ]

**SDK for Kotlin**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/cloudwatch#code-examples). 

```
suspend fun putMetricAlarm(
    alarmNameVal: String,
    instanceIdVal: String,
) {
    val dimensionOb =
        Dimension {
            name = "InstanceId"
            value = instanceIdVal
        }

    val request =
        PutMetricAlarmRequest {
            alarmName = alarmNameVal
            comparisonOperator = ComparisonOperator.GreaterThanThreshold
            evaluationPeriods = 1
            metricName = "CPUUtilization"
            namespace = "AWS/EC2"
            period = 60
            statistic = Statistic.fromValue("Average")
            threshold = 70.0
            actionsEnabled = false
            alarmDescription = "An Alarm created by the Kotlin SDK when server CPU utilization exceeds 70%"
            unit = StandardUnit.fromValue("Seconds")
            dimensions = listOf(dimensionOb)
        }

    CloudWatchClient.fromEnvironment { region = "us-east-1" }.use { cwClient ->
        cwClient.putMetricAlarm(request)
        println("Successfully created an alarm with name $alarmNameVal")
    }
}
```
+  For API details, see [PutMetricAlarm](https://sdk.amazonaws.com/kotlin/api/latest/index.html) in *AWS SDK for Kotlin API reference*. 

------
#### [ Python ]

**SDK for Python (Boto3)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/cloudwatch#code-examples). 

```
class CloudWatchWrapper:
    """Encapsulates Amazon CloudWatch functions."""

    def __init__(self, cloudwatch_resource):
        """
        :param cloudwatch_resource: A Boto3 CloudWatch resource.
        """
        self.cloudwatch_resource = cloudwatch_resource


    def create_metric_alarm(
        self,
        metric_namespace,
        metric_name,
        alarm_name,
        stat_type,
        period,
        eval_periods,
        threshold,
        comparison_op,
    ):
        """
        Creates an alarm that watches a metric.

        :param metric_namespace: The namespace of the metric.
        :param metric_name: The name of the metric.
        :param alarm_name: The name of the alarm.
        :param stat_type: The type of statistic the alarm watches.
        :param period: The period in which metric data are grouped to calculate
                       statistics.
        :param eval_periods: The number of periods that the metric must be over the
                             alarm threshold before the alarm is set into an alarmed
                             state.
        :param threshold: The threshold value to compare against the metric statistic.
        :param comparison_op: The comparison operation used to compare the threshold
                              against the metric.
        :return: The newly created alarm.
        """
        try:
            metric = self.cloudwatch_resource.Metric(metric_namespace, metric_name)
            alarm = metric.put_alarm(
                AlarmName=alarm_name,
                Statistic=stat_type,
                Period=period,
                EvaluationPeriods=eval_periods,
                Threshold=threshold,
                ComparisonOperator=comparison_op,
            )
            logger.info(
                "Added alarm %s to track metric %s.%s.",
                alarm_name,
                metric_namespace,
                metric_name,
            )
        except ClientError:
            logger.exception(
                "Couldn't add alarm %s to metric %s.%s",
                alarm_name,
                metric_namespace,
                metric_name,
            )
            raise
        else:
            return alarm
```
+  For API details, see [PutMetricAlarm](https://docs.aws.amazon.com/goto/boto3/monitoring-2010-08-01/PutMetricAlarm) in *AWS SDK for Python (Boto3) API Reference*. 

------
#### [ Ruby ]

**SDK for Ruby**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/cloudwatch#code-examples). 

```
# Creates or updates an alarm in Amazon CloudWatch.
#
# @param cloudwatch_client [Aws::CloudWatch::Client]
#   An initialized CloudWatch client.
# @param alarm_name [String] The name of the alarm.
# @param alarm_description [String] A description about the alarm.
# @param metric_name [String] The name of the metric associated with the alarm.
# @param alarm_actions [Array] A list of Strings representing the
#   Amazon Resource Names (ARNs) to execute when the alarm transitions to the
#   ALARM state.
# @param namespace [String] The namespace for the metric to alarm on.
# @param statistic [String] The statistic for the metric.
# @param dimensions [Array] A list of dimensions for the metric, specified as
#   Aws::CloudWatch::Types::Dimension.
# @param period [Integer] The number of seconds before re-evaluating the metric.
# @param unit [String] The unit of measure for the statistic.
# @param evaluation_periods [Integer] The number of periods over which data is
#   compared to the specified threshold.
# @param theshold [Float] The value against which the specified statistic is compared.
# @param comparison_operator [String] The arithmetic operation to use when
#   comparing the specified statistic and threshold.
# @return [Boolean] true if the alarm was created or updated; otherwise, false.
# @example
#   exit 1 unless alarm_created_or_updated?(
#     Aws::CloudWatch::Client.new(region: 'us-east-1'),
#     'ObjectsInBucket',
#     'Objects exist in this bucket for more than 1 day.',
#     'NumberOfObjects',
#     ['arn:aws:sns:us-east-1:111111111111:Default_CloudWatch_Alarms_Topic'],
#     'AWS/S3',
#     'Average',
#     [
#       {
#         name: 'BucketName',
#         value: 'amzn-s3-demo-bucket'
#       },
#       {
#         name: 'StorageType',
#         value: 'AllStorageTypes'
#       }
#     ],
#     86_400,
#     'Count',
#     1,
#     1,
#     'GreaterThanThreshold'
#   )
def alarm_created_or_updated?(
  cloudwatch_client,
  alarm_name,
  alarm_description,
  metric_name,
  alarm_actions,
  namespace,
  statistic,
  dimensions,
  period,
  unit,
  evaluation_periods,
  threshold,
  comparison_operator
)
  cloudwatch_client.put_metric_alarm(
    alarm_name: alarm_name,
    alarm_description: alarm_description,
    metric_name: metric_name,
    alarm_actions: alarm_actions,
    namespace: namespace,
    statistic: statistic,
    dimensions: dimensions,
    period: period,
    unit: unit,
    evaluation_periods: evaluation_periods,
    threshold: threshold,
    comparison_operator: comparison_operator
  )
  true
rescue StandardError => e
  puts "Error creating alarm: #{e.message}"
  false
end
```
+  For API details, see [PutMetricAlarm](https://docs.aws.amazon.com/goto/SdkForRubyV3/monitoring-2010-08-01/PutMetricAlarm) in *AWS SDK for Ruby API Reference*. 

------
#### [ SAP ABAP ]

**SDK for SAP ABAP**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/cwt#code-examples). 

```
    TRY.
        lo_cwt->putmetricalarm(
          iv_alarmname                 = iv_alarm_name
          iv_comparisonoperator        = iv_comparison_operator
          iv_evaluationperiods         = iv_evaluation_periods
          iv_metricname                = iv_metric_name
          iv_namespace                 = iv_namespace
          iv_statistic                 = iv_statistic
          iv_threshold                 = iv_threshold
          iv_actionsenabled            = iv_actions_enabled
          iv_alarmdescription          = iv_alarm_description
          iv_unit                      = iv_unit
          iv_period                    = iv_period
          it_dimensions                = it_dimensions ).
        MESSAGE 'Alarm created.' TYPE 'I'.
      CATCH /aws1/cx_cwtlimitexceededfault.
        MESSAGE 'The request processing has exceeded the limit' TYPE 'E'.
    ENDTRY.
```
+  For API details, see [PutMetricAlarm](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html) in *AWS SDK for SAP ABAP API reference*. 

------

# Use `PutMetricData` with an AWS SDK or CLI
<a name="cloudwatch_example_cloudwatch_PutMetricData_section"></a>

The following code examples show how to use `PutMetricData`.

Action examples are code excerpts from larger programs and must be run in context. You can see this action in context in the following code examples: 
+  [Learn the basics](cloudwatch_example_cloudwatch_GetStartedMetricsDashboardsAlarms_section.md) 
+  [Manage metrics and alarms](cloudwatch_example_cloudwatch_Usage_MetricsAlarms_section.md) 

------
#### [ .NET ]

**SDK for .NET (v4)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/CloudWatch#code-examples). 

```
    /// <summary>
    /// Add some metric data using a call to a wrapper class.
    /// </summary>
    /// <param name="customMetricName">The metric name.</param>
    /// <param name="customMetricNamespace">The metric namespace.</param>
    /// <returns></returns>
    private static async Task<List<MetricDatum>> PutRandomMetricData(string customMetricName,
        string customMetricNamespace)
    {
        List<MetricDatum> customData = new List<MetricDatum>();
        Random rnd = new Random();

        // Add 10 random values up to 100, starting with a timestamp 15 minutes in the past.
        var utcNowMinus15 = DateTime.UtcNow.AddMinutes(-15);
        for (int i = 0; i < 10; i++)
        {
            var metricValue = rnd.Next(0, 100);
            customData.Add(
                new MetricDatum
                {
                    MetricName = customMetricName,
                    Value = metricValue,
                    TimestampUtc = utcNowMinus15.AddMinutes(i)
                }
            );
        }

        await _cloudWatchWrapper.PutMetricData(customMetricNamespace, customData);
        return customData;
    }

    /// <summary>
    /// Wrapper to add metric data to a CloudWatch metric.
    /// </summary>
    /// <param name="metricNamespace">The namespace of the metric.</param>
    /// <param name="metricData">A data object for the metric data.</param>
    /// <returns>True if successful.</returns>
    public async Task<bool> PutMetricData(string metricNamespace,
        List<MetricDatum> metricData)
    {
        var putDataResponse = await _amazonCloudWatch.PutMetricDataAsync(
            new PutMetricDataRequest()
            {
                MetricData = metricData,
                Namespace = metricNamespace,
            });

        return putDataResponse.HttpStatusCode == HttpStatusCode.OK;
    }
```
+  For API details, see [PutMetricData](https://docs.aws.amazon.com/goto/DotNetSDKV4/monitoring-2010-08-01/PutMetricData) in *AWS SDK for .NET API Reference*. 

------
#### [ C\$1\$1 ]

**SDK for C\$1\$1**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/cpp/example_code/cloudwatch#code-examples). 
Include the required files.  

```
#include <aws/core/Aws.h>
#include <aws/monitoring/CloudWatchClient.h>
#include <aws/monitoring/model/PutMetricDataRequest.h>
#include <iostream>
```
Put data into the metric.  

```
        Aws::CloudWatch::CloudWatchClient cw;

        Aws::CloudWatch::Model::Dimension dimension;
        dimension.SetName("UNIQUE_PAGES");
        dimension.SetValue("URLS");

        Aws::CloudWatch::Model::MetricDatum datum;
        datum.SetMetricName("PAGES_VISITED");
        datum.SetUnit(Aws::CloudWatch::Model::StandardUnit::None);
        datum.SetValue(data_point);
        datum.AddDimensions(dimension);

        Aws::CloudWatch::Model::PutMetricDataRequest request;
        request.SetNamespace("SITE/TRAFFIC");
        request.AddMetricData(datum);

        auto outcome = cw.PutMetricData(request);
        if (!outcome.IsSuccess())
        {
            std::cout << "Failed to put sample metric data:" <<
                outcome.GetError().GetMessage() << std::endl;
        }
        else
        {
            std::cout << "Successfully put sample metric data" << std::endl;
        }
```
+  For API details, see [PutMetricData](https://docs.aws.amazon.com/goto/SdkForCpp/monitoring-2010-08-01/PutMetricData) in *AWS SDK for C\$1\$1 API Reference*. 

------
#### [ CLI ]

**AWS CLI**  
**To publish a custom metric to Amazon CloudWatch**  
The following example uses the `put-metric-data` command to publish a custom metric to Amazon CloudWatch:  

```
aws cloudwatch put-metric-data --namespace "Usage Metrics" --metric-data file://metric.json
```
The values for the metric itself are stored in the JSON file, `metric.json`.  
Here are the contents of that file:  

```
[
  {
    "MetricName": "New Posts",
    "Timestamp": "Wednesday, June 12, 2013 8:28:20 PM",
    "Value": 0.50,
    "Unit": "Count"
  }
]
```
For more information, see Publishing Custom Metrics in the *Amazon CloudWatch Developer Guide*.  
**To specify multiple dimensions**  
The following example illustrates how to specify multiple dimensions. Each dimension is specified as a Name=Value pair. Multiple dimensions are separated by a comma.:  

```
aws cloudwatch put-metric-data --metric-name Buffers --namespace MyNameSpace --unit Bytes --value 231434333 --dimensions InstanceID=1-23456789,InstanceType=m1.small
```
+  For API details, see [PutMetricData](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/cloudwatch/put-metric-data.html) in *AWS CLI Command Reference*. 

------
#### [ Java ]

**SDK for Java 2.x**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/cloudwatch#code-examples). 

```
    /**
     * Adds metric data for an alarm asynchronously.
     *
     * @param fileName the name of the JSON file containing the metric data
     * @return a CompletableFuture that asynchronously returns the PutMetricDataResponse
     */
    public CompletableFuture<PutMetricDataResponse> addMetricDataForAlarmAsync(String fileName) {
        CompletableFuture<String> readFileFuture = CompletableFuture.supplyAsync(() -> {
            try {
                JsonParser parser = new JsonFactory().createParser(new File(fileName));
                com.fasterxml.jackson.databind.JsonNode rootNode = new ObjectMapper().readTree(parser);
                return rootNode.toString(); // Return JSON as a string for further processing
            } catch (IOException e) {
                throw new RuntimeException("Failed to read file", e);
            }
        });

        return readFileFuture.thenCompose(jsonContent -> {
            try {
                com.fasterxml.jackson.databind.JsonNode rootNode = new ObjectMapper().readTree(jsonContent);
                String customMetricNamespace = rootNode.findValue("customMetricNamespace").asText();
                String customMetricName = rootNode.findValue("customMetricName").asText();
                Instant instant = Instant.now();

                // Create MetricDatum objects.
                MetricDatum datum1 = MetricDatum.builder()
                    .metricName(customMetricName)
                    .unit(StandardUnit.NONE)
                    .value(1001.00)
                    .timestamp(instant)
                    .build();

                MetricDatum datum2 = MetricDatum.builder()
                    .metricName(customMetricName)
                    .unit(StandardUnit.NONE)
                    .value(1002.00)
                    .timestamp(instant)
                    .build();

                List<MetricDatum> metricDataList = new ArrayList<>();
                metricDataList.add(datum1);
                metricDataList.add(datum2);

                // Build the PutMetricData request.
                PutMetricDataRequest request = PutMetricDataRequest.builder()
                    .namespace(customMetricNamespace)
                    .metricData(metricDataList)
                    .build();

                // Send the request asynchronously.
                return getAsyncClient().putMetricData(request);

            } catch (IOException e) {
                CompletableFuture<PutMetricDataResponse> failedFuture = new CompletableFuture<>();
                failedFuture.completeExceptionally(new RuntimeException("Failed to parse JSON content", e));
                return failedFuture;
            }
        }).whenComplete((response, exception) -> {
            if (exception != null) {
                logger.error("Failed to put metric data: " + exception.getMessage(), exception);
            } else {
                logger.info("Added metric values for metric.");
            }
        });
    }
```
+  For API details, see [PutMetricData](https://docs.aws.amazon.com/goto/SdkForJavaV2/monitoring-2010-08-01/PutMetricData) in *AWS SDK for Java 2.x API Reference*. 

------
#### [ JavaScript ]

**SDK for JavaScript (v3)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascriptv3/example_code/cloudwatch#code-examples). 
Import the SDK and client modules and call the API.  

```
import { PutMetricDataCommand } from "@aws-sdk/client-cloudwatch";
import { client } from "../libs/client.js";

const run = async () => {
  // See https://docs.aws.amazon.com/AmazonCloudWatch/latest/APIReference/API_PutMetricData.html#API_PutMetricData_RequestParameters
  // and https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/publishingMetrics.html
  // for more information about the parameters in this command.
  const command = new PutMetricDataCommand({
    MetricData: [
      {
        MetricName: "PAGES_VISITED",
        Dimensions: [
          {
            Name: "UNIQUE_PAGES",
            Value: "URLS",
          },
        ],
        Unit: "None",
        Value: 1.0,
      },
    ],
    Namespace: "SITE/TRAFFIC",
  });

  try {
    return await client.send(command);
  } catch (err) {
    console.error(err);
  }
};

export default run();
```
Create the client in a separate module and export it.  

```
import { CloudWatchClient } from "@aws-sdk/client-cloudwatch";

export const client = new CloudWatchClient({});
```
+  For more information, see [AWS SDK for JavaScript Developer Guide](https://docs.aws.amazon.com/sdk-for-javascript/v3/developer-guide/cloudwatch-examples-getting-metrics.html#cloudwatch-examples-getting-metrics-publishing-custom). 
+  For API details, see [PutMetricData](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/client/cloudwatch/command/PutMetricDataCommand) in *AWS SDK for JavaScript API Reference*. 

**SDK for JavaScript (v2)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/cloudwatch#code-examples). 

```
// 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));
  }
});
```
+  For more information, see [AWS SDK for JavaScript Developer Guide](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-getting-metrics.html#cloudwatch-examples-getting-metrics-publishing-custom). 
+  For API details, see [PutMetricData](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/monitoring-2010-08-01/PutMetricData) in *AWS SDK for JavaScript API Reference*. 

------
#### [ Kotlin ]

**SDK for Kotlin**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/cloudwatch#code-examples). 

```
suspend fun addMetricDataForAlarm(fileName: String?) {
    // Read values from the JSON file.
    val parser = JsonFactory().createParser(File(fileName))
    val rootNode = ObjectMapper().readTree<JsonNode>(parser)
    val customMetricNamespace = rootNode.findValue("customMetricNamespace").asText()
    val customMetricName = rootNode.findValue("customMetricName").asText()

    // Set an Instant object.
    val time = ZonedDateTime.now(ZoneOffset.UTC).format(DateTimeFormatter.ISO_INSTANT)
    val instant = Instant.parse(time)
    val datum =
        MetricDatum {
            metricName = customMetricName
            unit = StandardUnit.None
            value = 1001.00
            timestamp =
                aws.smithy.kotlin.runtime.time
                    .Instant(instant)
        }

    val datum2 =
        MetricDatum {
            metricName = customMetricName
            unit = StandardUnit.None
            value = 1002.00
            timestamp =
                aws.smithy.kotlin.runtime.time
                    .Instant(instant)
        }

    val metricDataList = ArrayList<MetricDatum>()
    metricDataList.add(datum)
    metricDataList.add(datum2)

    val request =
        PutMetricDataRequest {
            namespace = customMetricNamespace
            metricData = metricDataList
        }

    CloudWatchClient.fromEnvironment { region = "us-east-1" }.use { cwClient ->
        cwClient.putMetricData(request)
        println("Added metric values for for metric $customMetricName")
    }
}
```
+  For API details, see [PutMetricData](https://sdk.amazonaws.com/kotlin/api/latest/index.html) in *AWS SDK for Kotlin API reference*. 

------
#### [ PowerShell ]

**Tools for PowerShell V4**  
**Example 1: Creates a new MetricDatum object, and writes it to Amazon Web Services CloudWatch Metrics.**  

```
### Create a MetricDatum .NET object
$Metric = New-Object -TypeName Amazon.CloudWatch.Model.MetricDatum
$Metric.Timestamp = [DateTime]::UtcNow
$Metric.MetricName = 'CPU'
$Metric.Value = 50

### Write the metric data to the CloudWatch service
Write-CWMetricData -Namespace instance1 -MetricData $Metric
```
+  For API details, see [PutMetricData](https://docs.aws.amazon.com/powershell/v4/reference) in *AWS Tools for PowerShell Cmdlet Reference (V4)*. 

**Tools for PowerShell V5**  
**Example 1: Creates a new MetricDatum object, and writes it to Amazon Web Services CloudWatch Metrics.**  

```
### Create a MetricDatum .NET object
$Metric = New-Object -TypeName Amazon.CloudWatch.Model.MetricDatum
$Metric.Timestamp = [DateTime]::UtcNow
$Metric.MetricName = 'CPU'
$Metric.Value = 50

### Write the metric data to the CloudWatch service
Write-CWMetricData -Namespace instance1 -MetricData $Metric
```
+  For API details, see [PutMetricData](https://docs.aws.amazon.com/powershell/v5/reference) in *AWS Tools for PowerShell Cmdlet Reference (V5)*. 

------
#### [ Python ]

**SDK for Python (Boto3)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/cloudwatch#code-examples). 

```
class CloudWatchWrapper:
    """Encapsulates Amazon CloudWatch functions."""

    def __init__(self, cloudwatch_resource):
        """
        :param cloudwatch_resource: A Boto3 CloudWatch resource.
        """
        self.cloudwatch_resource = cloudwatch_resource


    def put_metric_data(self, namespace, name, value, unit):
        """
        Sends a single data value to CloudWatch for a metric. This metric is given
        a timestamp of the current UTC time.

        :param namespace: The namespace of the metric.
        :param name: The name of the metric.
        :param value: The value of the metric.
        :param unit: The unit of the metric.
        """
        try:
            metric = self.cloudwatch_resource.Metric(namespace, name)
            metric.put_data(
                Namespace=namespace,
                MetricData=[{"MetricName": name, "Value": value, "Unit": unit}],
            )
            logger.info("Put data for metric %s.%s", namespace, name)
        except ClientError:
            logger.exception("Couldn't put data for metric %s.%s", namespace, name)
            raise
```
Put a set of data into a CloudWatch metric.  

```
class CloudWatchWrapper:
    """Encapsulates Amazon CloudWatch functions."""

    def __init__(self, cloudwatch_resource):
        """
        :param cloudwatch_resource: A Boto3 CloudWatch resource.
        """
        self.cloudwatch_resource = cloudwatch_resource


    def put_metric_data_set(self, namespace, name, timestamp, unit, data_set):
        """
        Sends a set of data to CloudWatch for a metric. All of the data in the set
        have the same timestamp and unit.

        :param namespace: The namespace of the metric.
        :param name: The name of the metric.
        :param timestamp: The UTC timestamp for the metric.
        :param unit: The unit of the metric.
        :param data_set: The set of data to send. This set is a dictionary that
                         contains a list of values and a list of corresponding counts.
                         The value and count lists must be the same length.
        """
        try:
            metric = self.cloudwatch_resource.Metric(namespace, name)
            metric.put_data(
                Namespace=namespace,
                MetricData=[
                    {
                        "MetricName": name,
                        "Timestamp": timestamp,
                        "Values": data_set["values"],
                        "Counts": data_set["counts"],
                        "Unit": unit,
                    }
                ],
            )
            logger.info("Put data set for metric %s.%s.", namespace, name)
        except ClientError:
            logger.exception("Couldn't put data set for metric %s.%s.", namespace, name)
            raise
```
+  For API details, see [PutMetricData](https://docs.aws.amazon.com/goto/boto3/monitoring-2010-08-01/PutMetricData) in *AWS SDK for Python (Boto3) API Reference*. 

------
#### [ Ruby ]

**SDK for Ruby**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/cloudwatch#code-examples). 

```
require 'aws-sdk-cloudwatch'

# Adds a datapoint to a metric in Amazon CloudWatch.
#
# @param cloudwatch_client [Aws::CloudWatch::Client]
#   An initialized CloudWatch client.
# @param metric_namespace [String] The namespace of the metric to add the
#   datapoint to.
# @param metric_name [String] The name of the metric to add the datapoint to.
# @param dimension_name [String] The name of the dimension to add the
#   datapoint to.
# @param dimension_value [String] The value of the dimension to add the
#   datapoint to.
# @param metric_value [Float] The value of the datapoint.
# @param metric_unit [String] The unit of measurement for the datapoint.
# @return [Boolean]
# @example
#   exit 1 unless datapoint_added_to_metric?(
#     Aws::CloudWatch::Client.new(region: 'us-east-1'),
#     'SITE/TRAFFIC',
#     'UniqueVisitors',
#     'SiteName',
#     'example.com',
#     5_885.0,
#     'Count'
#   )
def datapoint_added_to_metric?(
  cloudwatch_client,
  metric_namespace,
  metric_name,
  dimension_name,
  dimension_value,
  metric_value,
  metric_unit
)
  cloudwatch_client.put_metric_data(
    namespace: metric_namespace,
    metric_data: [
      {
        metric_name: metric_name,
        dimensions: [
          {
            name: dimension_name,
            value: dimension_value
          }
        ],
        value: metric_value,
        unit: metric_unit
      }
    ]
  )
  puts "Added data about '#{metric_name}' to namespace " \
    "'#{metric_namespace}'."
  true
rescue StandardError => e
  puts "Error adding data about '#{metric_name}' to namespace " \
    "'#{metric_namespace}': #{e.message}"
  false
end
```
+  For API details, see [PutMetricData](https://docs.aws.amazon.com/goto/SdkForRubyV3/monitoring-2010-08-01/PutMetricData) in *AWS SDK for Ruby API Reference*. 

------
#### [ SAP ABAP ]

**SDK for SAP ABAP**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/cwt#code-examples). 

```
    DATA lt_metricdata TYPE /aws1/cl_cwtmetricdatum=>tt_metricdata.

    "Create metric data object.
    DATA(lo_metricdatum) = NEW /aws1/cl_cwtmetricdatum(
      iv_metricname = iv_metric_name
      iv_value      = iv_value
      iv_unit       = iv_unit ).

    INSERT lo_metricdatum INTO TABLE lt_metricdata.

    TRY.
        lo_cwt->putmetricdata(
          iv_namespace   = iv_namespace
          it_metricdata  = lt_metricdata ).
        MESSAGE 'Metric data added.' TYPE 'I'.
      CATCH /aws1/cx_cwtinvparamvalueex.
        MESSAGE 'The specified argument was not valid.' TYPE 'E'.
    ENDTRY.
```
Put a set of data into a CloudWatch metric.  

```
    DATA lt_metricdata TYPE /aws1/cl_cwtmetricdatum=>tt_metricdata.

    "Create metric data object with values and counts.
    DATA(lo_metricdatum) = NEW /aws1/cl_cwtmetricdatum(
      iv_metricname = iv_metric_name
      iv_timestamp  = iv_timestamp
      iv_unit       = iv_unit
      it_values     = it_values
      it_counts     = it_counts ).

    INSERT lo_metricdatum INTO TABLE lt_metricdata.

    TRY.
        lo_cwt->putmetricdata(
          iv_namespace   = iv_namespace
          it_metricdata  = lt_metricdata ).
        MESSAGE 'Metric data set added.' TYPE 'I'.
      CATCH /aws1/cx_cwtinvparamvalueex.
        MESSAGE 'The specified argument was not valid.' TYPE 'E'.
    ENDTRY.
```
+  For API details, see [PutMetricData](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html) in *AWS SDK for SAP ABAP API reference*. 

------