Create a CloudWatch anomaly detector - Amazon CloudWatch
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Create a CloudWatch anomaly detector

The following code examples show how to create an Amazon CloudWatch anomaly detector.

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:

.NET
Amazon SDK for .NET
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the Amazon Code Examples Repository. 

    /// <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;
    }
Java
SDK for Java 2.x
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the Amazon Code Examples Repository. 

    public static void addAnomalyDetector(CloudWatchClient cw, String fileName) {
        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);
            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();

            cw.putAnomalyDetector(anomalyDetectorRequest);
            System.out.println("Added anomaly detector for metric "+customMetricName+".");

        } catch (CloudWatchException | IOException e) {
            System.err.println(e.getMessage());
            System.exit(1);
        }
    }
Kotlin
SDK for Kotlin
Note

This is prerelease documentation for a feature in preview release. It is subject to change.

Note

There's more on GitHub. Find the complete example and learn how to set up and run in the Amazon Code Examples Repository. 

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 { region = "us-east-1" }.use { cwClient ->
        cwClient.putAnomalyDetector(anomalyDetectorRequest)
        println("Added anomaly detector for metric $customMetricName.")
    }
}

For a complete list of Amazon SDK developer guides and code examples, see Using CloudWatch with an Amazon SDK. This topic also includes information about getting started and details about previous SDK versions.