Get a metric descriptor

Demonstrates how to get the details of a metric descriptor.

Documentation pages that include this code sample

To view the code sample used in context, see the following documentation:

Code sample

C#

public static object GetMetricDetails(string projectId, string metricType)
{
    MetricServiceClient client = MetricServiceClient.Create();
    MetricDescriptorName name = new MetricDescriptorName(projectId, metricType);
    try
    {
        var response = client.GetMetricDescriptor(name);
        string metric = JObject.Parse($"{response}").ToString();
        Console.WriteLine($"{ metric }");
    }
    catch (Grpc.Core.RpcException ex)
        when (ex.Status.StatusCode == Grpc.Core.StatusCode.NotFound)
    { }
    return 0;
}

Go


import (
	"context"
	"fmt"
	"io"

	monitoring "cloud.google.com/go/monitoring/apiv3"
	monitoringpb "google.golang.org/genproto/googleapis/monitoring/v3"
)

// getMetricDescriptor gets the descriptor for the given metricType and prints
// information about it. metricType is the type of the metric, for example
// compute.googleapis.com/firewall/dropped_packets_count.
func getMetricDescriptor(w io.Writer, projectID, metricType string) error {
	ctx := context.Background()
	c, err := monitoring.NewMetricClient(ctx)
	if err != nil {
		return fmt.Errorf("NewMetricClient: %v", err)
	}
	defer c.Close()
	req := &monitoringpb.GetMetricDescriptorRequest{
		Name: fmt.Sprintf("projects/%s/metricDescriptors/%s", projectID, metricType),
	}
	resp, err := c.GetMetricDescriptor(ctx, req)
	if err != nil {
		return fmt.Errorf("could not get custom metric: %v", err)
	}

	fmt.Fprintf(w, "Name: %v\n", resp.GetName())
	fmt.Fprintf(w, "Description: %v\n", resp.GetDescription())
	fmt.Fprintf(w, "Type: %v\n", resp.GetType())
	fmt.Fprintf(w, "Metric Kind: %v\n", resp.GetMetricKind())
	fmt.Fprintf(w, "Value Type: %v\n", resp.GetValueType())
	fmt.Fprintf(w, "Unit: %v\n", resp.GetUnit())
	fmt.Fprintf(w, "Labels:\n")
	for _, l := range resp.GetLabels() {
		fmt.Fprintf(w, "\t%s (%s) - %s", l.GetKey(), l.GetValueType(), l.GetDescription())
	}
	return nil
}

Java

// Your Google Cloud Platform project ID
String projectId = System.getProperty("projectId");

final MetricServiceClient client = MetricServiceClient.create();
MonitoredResourceDescriptorName name = MonitoredResourceDescriptorName.of(projectId, type);
MonitoredResourceDescriptor response = client.getMonitoredResourceDescriptor(name);

System.out.println("Printing monitored resource descriptor: ");
System.out.println(response);

Node.js

// Imports the Google Cloud client library
const monitoring = require('@google-cloud/monitoring');

// Creates a client
const client = new monitoring.MetricServiceClient();

/**
 * TODO(developer): Uncomment and edit the following lines of code.
 */
// const projectId = 'YOUR_PROJECT_ID';
// const metricId = 'custom.googleapis.com/your/id';

const request = {
  name: client.projectMetricDescriptorPath(projectId, metricId),
};

// Retrieves a metric descriptor
const [descriptor] = await client.getMetricDescriptor(request);
console.log(`Name: ${descriptor.displayName}`);
console.log(`Description: ${descriptor.description}`);
console.log(`Type: ${descriptor.type}`);
console.log(`Kind: ${descriptor.metricKind}`);
console.log(`Value Type: ${descriptor.valueType}`);
console.log(`Unit: ${descriptor.unit}`);
console.log('Labels:');
descriptor.labels.forEach(label => {
  console.log(`  ${label.key} (${label.valueType}) - ${label.description}`);
});

PHP

use Google\Cloud\Monitoring\V3\MetricServiceClient;

/**
 * Example:
 * ```
 * get_descriptor($projectId);
 * ```
 *
 * @param string $projectId Your project ID
 * @param string $metricId  The ID of the Metric Descriptor to get
 */
function get_descriptor($projectId, $metricId)
{
    $metrics = new MetricServiceClient([
        'projectId' => $projectId,
    ]);

    $metricName = $metrics->metricDescriptorName($projectId, $metricId);
    $descriptor = $metrics->getMetricDescriptor($metricName);

    printf('Name: ' . $descriptor->getDisplayName() . PHP_EOL);
    printf('Description: ' . $descriptor->getDescription() . PHP_EOL);
    printf('Type: ' . $descriptor->getType() . PHP_EOL);
    printf('Metric Kind: ' . $descriptor->getMetricKind() . PHP_EOL);
    printf('Value Type: ' . $descriptor->getValueType() . PHP_EOL);
    printf('Unit: ' . $descriptor->getUnit() . PHP_EOL);
    printf('Labels:' . PHP_EOL);
    foreach ($descriptor->getLabels() as $labels) {
        printf('  %s (%s) - %s' . PHP_EOL,
            $labels->getKey(),
            $labels->getValueType(),
            $labels->getDescription());
    }
}

Python

client = monitoring_v3.MetricServiceClient()
descriptor = client.get_metric_descriptor(name=metric_name)
pprint.pprint(descriptor)

Ruby

# Your Google Cloud Platform project ID
# project_id = "YOUR_PROJECT_ID"

# Example metric type
# metric_type = "custom.googleapis.com/my_metric"

client = Google::Cloud::Monitoring.metric_service
metric_name = client.metric_descriptor_path project:           project_id,
                                            metric_descriptor: metric_type

descriptor = client.get_metric_descriptor name: metric_name
p descriptor

What's next

To search and filter code samples for other Google Cloud products, see the Google Cloud sample browser