CloudWatch examples using SDK for C++
The following code examples show you how to perform actions and implement common scenarios by using the AWS SDK for C++ with CloudWatch.
Actions are code excerpts from larger programs and must be run in context. While actions show you how to call individual service functions, you can see actions in context in their related scenarios.
Each example includes a link to the complete source code, where you can find instructions on how to set up and run the code in context.
Topics
Actions
The following code example shows how to use DeleteAlarms.
- SDK for C++
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository
. 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 in AWS SDK for C++ API Reference.
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The following code example shows how to use DescribeAlarmsForMetric.
- SDK for C++
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository
. 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 in AWS SDK for C++ API Reference.
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The following code example shows how to use DisableAlarmActions.
- SDK for C++
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository
. 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 in AWS SDK for C++ API Reference.
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The following code example shows how to use EnableAlarmActions.
- SDK for C++
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository
. 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 in AWS SDK for C++ API Reference.
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The following code example shows how to use ListMetrics.
- SDK for C++
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository
. 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 in AWS SDK for C++ API Reference.
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The following code example shows how to use PutMetricAlarm.
- SDK for C++
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository
. 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 in AWS SDK for C++ API Reference.
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The following code example shows how to use PutMetricData.
- SDK for C++
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository
. 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 in AWS SDK for C++ API Reference.
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