Create an uptime check

Demonstrates how to create an uptime check.

Explore further

For detailed documentation that includes this code sample, see the following:

• Create public uptime checks

Code sample

C#

To authenticate to Monitoring, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

public static object CreateUptimeCheck(string projectId, string hostName,
    string displayName)
{
    // Define a new config.
    var config = new UptimeCheckConfig()
    {
        DisplayName = displayName,
        MonitoredResource = new MonitoredResource()
        {
            Type = "uptime_url",
            Labels = { { "host", hostName } }
        },
        HttpCheck = new UptimeCheckConfig.Types.HttpCheck()
        {
            Path = "/",
            Port = 80,
        },
        Timeout = TimeSpan.FromSeconds(10).ToDuration(),
        Period = TimeSpan.FromMinutes(5).ToDuration()
    };
    // Create a client.
    var client = UptimeCheckServiceClient.Create();
    ProjectName projectName = new ProjectName(projectId);
    // Create the config.
    var newConfig = client.CreateUptimeCheckConfig(
        projectName,
        config,
        CallSettings.FromExpiration(
            Expiration.FromTimeout(
                TimeSpan.FromMinutes(2))));
    Console.WriteLine(newConfig.Name);
    return 0;
}

Go

To authenticate to Monitoring, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

// createGet creates an example uptime check on a GET request.
func createGet(w io.Writer, projectID string) (*monitoringpb.UptimeCheckConfig, error) {
	ctx := context.Background()
	client, err := monitoring.NewUptimeCheckClient(ctx)
	if err != nil {
		return nil, fmt.Errorf("NewUptimeCheckClient: %w", err)
	}
	defer client.Close()
	req := &monitoringpb.CreateUptimeCheckConfigRequest{
		Parent: "projects/" + projectID,
		UptimeCheckConfig: &monitoringpb.UptimeCheckConfig{
			DisplayName: "new GET uptime check",
			Resource: &monitoringpb.UptimeCheckConfig_MonitoredResource{
				MonitoredResource: &monitoredres.MonitoredResource{
					Type: "uptime_url",
					Labels: map[string]string{
						"host": "example.com",
					},
				},
			},
			CheckRequestType: &monitoringpb.UptimeCheckConfig_HttpCheck_{
				HttpCheck: &monitoringpb.UptimeCheckConfig_HttpCheck{
					RequestMethod: monitoringpb.UptimeCheckConfig_HttpCheck_GET,
					Path:          "/",
					Port:          80,
				},
			},
			Timeout: &duration.Duration{Seconds: 10},
			Period:  &duration.Duration{Seconds: 300},
		},
	}
	config, err := client.CreateUptimeCheckConfig(ctx, req)
	if err != nil {
		return nil, fmt.Errorf("CreateUptimeCheckConfig GET: %w", err)
	}
	fmt.Fprintf(w, "Successfully created GET uptime check %q\n", config.GetDisplayName())
	return config, nil
}

// createPost creates an example uptime check on a POST request.
func createPost(w io.Writer, projectID string) (*monitoringpb.UptimeCheckConfig, error) {
	ctx := context.Background()
	client, err := monitoring.NewUptimeCheckClient(ctx)
	if err != nil {
		return nil, fmt.Errorf("NewUptimeCheckClient: %w", err)
	}
	defer client.Close()
	req := &monitoringpb.CreateUptimeCheckConfigRequest{
		Parent: "projects/" + projectID,
		UptimeCheckConfig: &monitoringpb.UptimeCheckConfig{
			DisplayName: "new POST uptime check",
			Resource: &monitoringpb.UptimeCheckConfig_MonitoredResource{
				MonitoredResource: &monitoredres.MonitoredResource{
					Type: "uptime_url",
					Labels: map[string]string{
						"host": "example.com",
					},
				},
			},
			CheckRequestType: &monitoringpb.UptimeCheckConfig_HttpCheck_{
				HttpCheck: &monitoringpb.UptimeCheckConfig_HttpCheck{
					RequestMethod: monitoringpb.UptimeCheckConfig_HttpCheck_POST,
					ContentType:   monitoringpb.UptimeCheckConfig_HttpCheck_URL_ENCODED,
					Path:          "/",
					Port:          80,
					Body:          []byte(base64.URLEncoding.EncodeToString([]byte("key: value"))),
				},
			},
			Timeout: &duration.Duration{Seconds: 10},
			Period:  &duration.Duration{Seconds: 300},
		},
	}
	config, err := client.CreateUptimeCheckConfig(ctx, req)
	if err != nil {
		return nil, fmt.Errorf("CreateUptimeCheckConfig POST: %w", err)
	}
	fmt.Fprintf(w, "Successfully created POST uptime check %q\n", config.GetDisplayName())
	return config, nil
}

Java

To authenticate to Monitoring, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

private static void createUptimeCheck(
    String projectId, String displayName, String hostName, String pathName) throws IOException {
  CreateUptimeCheckConfigRequest request =
      CreateUptimeCheckConfigRequest.newBuilder()
          .setParent(ProjectName.format(projectId))
          .setUptimeCheckConfig(
              UptimeCheckConfig.newBuilder()
                  .setDisplayName(displayName)
                  .setMonitoredResource(
                      MonitoredResource.newBuilder()
                          .setType("uptime_url")
                          .putLabels("host", hostName))
                  .setHttpCheck(HttpCheck.newBuilder().setPath(pathName).setPort(80))
                  .setTimeout(Duration.newBuilder().setSeconds(10))
                  .setPeriod(Duration.newBuilder().setSeconds(300)))
          .build();
  try (UptimeCheckServiceClient client = UptimeCheckServiceClient.create()) {
    UptimeCheckConfig config = client.createUptimeCheckConfig(request);
    System.out.println("Uptime check created: " + config.getName());
  } catch (Exception e) {
    usage("Exception creating uptime check: " + e.toString());
    throw e;
  }
}

Node.js

To authenticate to Monitoring, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

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

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

/**
 * TODO(developer): Uncomment and edit the following lines of code.
 */
// const projectId = 'YOUR_PROJECT_ID';
// const hostname = 'mydomain.com';

const request = {
  // i.e. parent: 'projects/my-project-id'
  parent: client.projectPath(projectId),
  uptimeCheckConfig: {
    displayName: 'My Uptime Check',
    monitoredResource: {
      // See the Uptime Check docs for supported MonitoredResource types
      type: 'uptime_url',
      labels: {
        host: hostname,
      },
    },
    httpCheck: {
      path: '/',
      port: 80,
    },
    timeout: {
      seconds: 10,
    },
    period: {
      seconds: 300,
    },
  },
};

// Creates an uptime check config for a GCE instance
const [uptimeCheckConfig] = await client.createUptimeCheckConfig(request);
console.log('Uptime check created:');
console.log(`ID: ${uptimeCheckConfig.name}`);
console.log(`Display Name: ${uptimeCheckConfig.displayName}`);
console.log('Resource: %j', uptimeCheckConfig.monitoredResource);
console.log('Period: %j', uptimeCheckConfig.period);
console.log('Timeout: %j', uptimeCheckConfig.timeout);
console.log(`Check type: ${uptimeCheckConfig.check_request_type}`);
console.log(
  'Check: %j',
  uptimeCheckConfig.httpCheck || uptimeCheckConfig.tcpCheck
);
console.log(
  `Content matchers: ${uptimeCheckConfig.contentMatchers
    .map(matcher => matcher.content)
    .join(', ')}`
);
console.log(`Regions: ${uptimeCheckConfig.selectedRegions.join(', ')}`);

PHP

To authenticate to Monitoring, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

use Google\Api\MonitoredResource;
use Google\Cloud\Monitoring\V3\Client\UptimeCheckServiceClient;
use Google\Cloud\Monitoring\V3\CreateUptimeCheckConfigRequest;
use Google\Cloud\Monitoring\V3\UptimeCheckConfig;

/**
 * Example:
 * ```
 * create_uptime_check($projectId, 'myproject.appspot.com', 'Test Uptime Check!');
 * ```
 *
 * @param string $projectId Your project ID
 * @param string $hostName
 * @param string $displayName
 */
function create_uptime_check($projectId, $hostName = 'example.com', $displayName = 'New uptime check')
{
    $projectName = 'projects/' . $projectId;
    $uptimeCheckClient = new UptimeCheckServiceClient([
        'projectId' => $projectId,
    ]);

    $monitoredResource = new MonitoredResource();
    $monitoredResource->setType('uptime_url');
    $monitoredResource->setLabels(['host' => $hostName]);

    $uptimeCheckConfig = new UptimeCheckConfig();
    $uptimeCheckConfig->setDisplayName($displayName);
    $uptimeCheckConfig->setMonitoredResource($monitoredResource);
    $createUptimeCheckConfigRequest = (new CreateUptimeCheckConfigRequest())
        ->setParent($projectName)
        ->setUptimeCheckConfig($uptimeCheckConfig);

    $uptimeCheckConfig = $uptimeCheckClient->createUptimeCheckConfig($createUptimeCheckConfigRequest);

    printf('Created an uptime check: %s' . PHP_EOL, $uptimeCheckConfig->getName());
}

Python

To authenticate to Monitoring, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

def create_uptime_check_config_get(
    project_id: str, host_name: str = None, display_name: str = None
) -> uptime.UptimeCheckConfig:
    """Creates a new uptime check configuration

    Args:
        project_id: Google Cloud project id where the uptime check is created
        host_name: An example label's value for the "host" label
        display_name: A human friendly name of the configuration

    Returns:
        A structure that describes a new created uptime check
    """
    config = monitoring_v3.UptimeCheckConfig()
    config.display_name = display_name or "New GET uptime check"
    config.monitored_resource = {
        "type": "uptime_url",
        "labels": {"host": host_name or "example.com"},
    }
    config.http_check = {
        "request_method": monitoring_v3.UptimeCheckConfig.HttpCheck.RequestMethod.GET,
        "path": "/",
        "port": 80,
    }
    config.timeout = {"seconds": 10}
    config.period = {"seconds": 300}

    client = monitoring_v3.UptimeCheckServiceClient()
    new_config = client.create_uptime_check_config(
        request={"parent": project_id, "uptime_check_config": config}
    )
    pprint.pprint(new_config)
    return new_config


def create_uptime_check_config_post(
    project_id: str, host_name: str = None, display_name: str = None
) -> uptime.UptimeCheckConfig:
    """Creates a new uptime check configuration

    Args:
        project_id: Google Cloud project id where the uptime check is created
        host_name: An example label's value for the "host" label
        display_name: A human friendly name of the configuration

    Returns:
        A structure that describes a new created uptime check
    """
    config = monitoring_v3.UptimeCheckConfig()
    config.display_name = display_name or "New POST uptime check"
    config.monitored_resource = {
        "type": "uptime_url",
        "labels": {"host": host_name or "example.com"},
    }
    config.http_check = {
        "request_method": monitoring_v3.UptimeCheckConfig.HttpCheck.RequestMethod.POST,
        "content_type": monitoring_v3.UptimeCheckConfig.HttpCheck.ContentType.URL_ENCODED,
        "body": "foo=bar".encode("utf-8"),
        "path": "/",
        "port": 80,
    }
    config.timeout = {"seconds": 10}
    config.period = {"seconds": 300}

    client = monitoring_v3.UptimeCheckServiceClient()
    new_config = client.create_uptime_check_config(
        request={"parent": project_id, "uptime_check_config": config}
    )
    pprint.pprint(new_config)
    return new_config

Ruby

To authenticate to Monitoring, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

def create_uptime_check_config project_id: nil, host_name: nil, display_name: nil
  require "google/cloud/monitoring"

  client = Google::Cloud::Monitoring.uptime_check_service
  project_name = client.project_path project: project_id
  config = {
    display_name:       display_name.nil? ? "New uptime check" : display_name,
    monitored_resource: {
      type:   "uptime_url",
      labels: { "host" => host_name.nil? ? "example.com" : host_name }
    },
    http_check:         { path: "/", port: 80 },
    timeout:            { seconds: 10 },
    period:             { seconds: 300 }
  }
  new_config = client.create_uptime_check_config \
    parent:              project_name,
    uptime_check_config: config
  puts new_config.name
  new_config
end

What's next

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