/// <summary>
/// Retrieves the CloudWatch alarm history for the alarm name passed
/// to the method.
/// </summary>
/// <param name="client">An initialized CloudWatch client object.</param>
/// <param name="alarmName">The CloudWatch alarm for which to retrieve
/// history information.</param>
public static async Task DescribeAlarmHistoriesAsync(IAmazonCloudWatch client, string alarmName)
{
var request = new DescribeAlarmHistoryRequest
{
AlarmName =
"ALARM_NAME",
EndDateUtc = DateTime.Today,
HistoryItemType = HistoryItemType.Action,
MaxRecords = 1,
StartDateUtc = DateTime.Today.Subtract(TimeSpan.FromDays(30)),
};
var response = new DescribeAlarmHistoryResponse();
do
{
response = await client.DescribeAlarmHistoryAsync(request);
foreach (var item in response.AlarmHistoryItems)
{
Console.WriteLine(item.AlarmName);
Console.WriteLine(item.HistorySummary);
Console.WriteLine();
}
request.NextToken = response.NextToken;
} while (!string.IsNullOrEmpty(response.NextToken));
}
async IAsyncEnumerable <DescribeAlarmHistoryResponse> IPaginator <DescribeAlarmHistoryResponse> .PaginateAsync(CancellationToken cancellationToken = default)
{
if (Interlocked.Exchange(ref _isPaginatorInUse, 1) != 0)
{
throw new System.InvalidOperationException("Paginator has already been consumed and cannot be reused. Please create a new instance.");
}
var nextToken = _request.NextToken;
DescribeAlarmHistoryResponse response;
do
{
_request.NextToken = nextToken;
response = await _client.DescribeAlarmHistoryAsync(_request, cancellationToken).ConfigureAwait(false);
nextToken = response.NextToken;
cancellationToken.ThrowIfCancellationRequested();
yield return(response);
}while (nextToken != null);
}
private Amazon.CloudWatch.Model.DescribeAlarmHistoryResponse CallAWSServiceOperation(IAmazonCloudWatch client, Amazon.CloudWatch.Model.DescribeAlarmHistoryRequest request)
{
Utils.Common.WriteVerboseEndpointMessage(this, client.Config, "Amazon CloudWatch", "DescribeAlarmHistory");
try
{
#if DESKTOP
return(client.DescribeAlarmHistory(request));
#elif CORECLR
return(client.DescribeAlarmHistoryAsync(request).GetAwaiter().GetResult());
#else
#error "Unknown build edition"
#endif
}
catch (AmazonServiceException exc)
{
var webException = exc.InnerException as System.Net.WebException;
if (webException != null)
{
throw new Exception(Utils.Common.FormatNameResolutionFailureMessage(client.Config, webException.Message), webException);
}
throw;
}
}
