Enumerar puertas de enlace

Enumera todas las puertas de enlace de un registro específico.

Explora más

Para obtener documentación en la que se incluye esta muestra de código, consulta lo siguiente:

Crear puertas de enlace

Muestra de código

Go

Si quieres obtener más información, consulta la documentación de referencia de la API de Go de Cloud IoT Core.

Para autenticarte en Cloud IoT Core, configura las credenciales predeterminadas de la aplicación. Si deseas obtener más información, consulta Configura la autenticación para un entorno de desarrollo local.

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// listGateways lists all the gateways in a specific registry.
func listGateways(w io.Writer, projectID string, region string, registryID string) ([]*cloudiot.Device, error) {
	// Authorize the client using Application Default Credentials.
	// See https://g.co/dv/identity/protocols/application-default-credentials
	ctx := context.Background()
	httpClient, err := google.DefaultClient(ctx, cloudiot.CloudPlatformScope)
	if err != nil {
		return nil, err
	}
	client, err := cloudiot.New(httpClient)
	if err != nil {
		return nil, err
	}

	parent := fmt.Sprintf("projects/%s/locations/%s/registries/%s", projectID, region, registryID)
	response, err := client.Projects.Locations.Registries.Devices.List(parent).GatewayListOptionsGatewayType("GATEWAY").Do()

	if err != nil {
		return nil, fmt.Errorf("ListGateways: %w", err)
	}

	if len(response.Devices) == 0 {
		fmt.Fprintln(w, "No gateways found")
		return response.Devices, nil
	}

	fmt.Fprintln(w, len(response.Devices), "devices:")
	for _, gateway := range response.Devices {
		fmt.Fprintf(w, "\t%s\n", gateway.Id)
	}

	return response.Devices, nil
}

Java

Si quieres obtener más información, consulta la documentación de referencia de la API de Java de Cloud IoT Core.

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GoogleCredentials credential =
    GoogleCredentials.getApplicationDefault().createScoped(CloudIotScopes.all());
JsonFactory jsonFactory = GsonFactory.getDefaultInstance();
HttpRequestInitializer init = new HttpCredentialsAdapter(credential);
final CloudIot service =
    new CloudIot.Builder(GoogleNetHttpTransport.newTrustedTransport(), jsonFactory, init)
        .setApplicationName(APP_NAME)
        .build();

final String registryPath =
    String.format(
        "projects/%s/locations/%s/registries/%s", projectId, cloudRegion, registryName);

List<Device> gateways =
    service
        .projects()
        .locations()
        .registries()
        .devices()
        .list(registryPath)
        .setGatewayListOptionsGatewayType("GATEWAY")
        .execute()
        .getDevices();

if (gateways != null) {
  System.out.println("Found " + gateways.size() + " devices");
  for (Device d : gateways) {
    System.out.println("Id: " + d.getId());
    if (d.getConfig() != null) {
      // Note that this will show the device config in Base64 encoded format.
      System.out.println("Config: " + d.getGatewayConfig().toPrettyString());
    }
    System.out.println();
  }
} else {
  System.out.println("Registry has no devices.");
}

Node.js

Si quieres obtener más información, consulta la documentación de referencia de la API de Node.js de Cloud IoT Core.

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// const cloudRegion = 'us-central1';
// const projectId = 'adjective-noun-123';
// const registryId = 'my-registry';
const iot = require('@google-cloud/iot');
const iotClient = new iot.v1.DeviceManagerClient({
  // optional auth parameters.
});

async function listDevices() {
  // Construct request
  const registryPath = iotClient.registryPath(
    projectId,
    cloudRegion,
    registryId
  );

  console.log('Current gateways in registry:');
  const [response] = await iotClient.listDevices({
    parent: registryPath,
    fieldMask: {paths: ['config', 'gateway_config']},
  });
  const devices = response;

  devices.forEach(device => {
    if (
      device.gatewayConfig !== undefined &&
      device.gatewayConfig.gatewayType === 'GATEWAY'
    ) {
      console.log('----\n', device);
    }
  });
}

listDevices();

PHP

Si quieres obtener más información, consulta la documentación de referencia de la API de PHP de Cloud IoT Core.

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use Google\Cloud\Iot\V1\DeviceManagerClient;
use Google\Cloud\Iot\V1\GatewayType;
use Google\Protobuf\FieldMask;

/**
 * List gateways in the registry.
 *
 * @param string $registryId IOT Device Registry ID
 * @param string $projectId Google Cloud project ID
 * @param string $location (Optional) Google Cloud region
 */
function list_gateways(
    $registryId,
    $projectId,
    $location = 'us-central1'
) {
    print('Listing gateways' . PHP_EOL);

    // Instantiate a client.
    $deviceManager = new DeviceManagerClient();

    // Format the full registry path
    $registryName = $deviceManager->registryName($projectId, $location, $registryId);

    // Pass field mask to retrieve the gateway configuration fields
    $fieldMask = (new FieldMask())->setPaths(['config', 'gateway_config']);

    // Call the API
    $devices = $deviceManager->listDevices($registryName, [
        'fieldMask' => $fieldMask
    ]);

    // Print the result
    $foundGateway = false;
    foreach ($devices->iterateAllElements() as $device) {
        $gatewayConfig = $device->getGatewayConfig();
        $gatewayType = null;
        if ($gatewayConfig != null) {
            $gatewayType = $gatewayConfig->getGatewayType();
        }

        if ($gatewayType == GatewayType::GATEWAY) {
            $foundGateway = true;
            printf('Device: %s : %s' . PHP_EOL,
                $device->getNumId(),
                $device->getId());
        }
    }
    if (!$foundGateway) {
        printf('Registry %s has no gateways' . PHP_EOL, $registryId);
    }
}

Python

Si quieres obtener más información, consulta la documentación de referencia de la API de Python de Cloud IoT Core.

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# project_id = 'YOUR_PROJECT_ID'
# cloud_region = 'us-central1'
# registry_id = 'your-registry-id'
client = iot_v1.DeviceManagerClient()

path = client.registry_path(project_id, cloud_region, registry_id)
mask = gp_field_mask.FieldMask()
mask.paths.append("config")
mask.paths.append("gateway_config")
devices = list(client.list_devices(request={"parent": path, "field_mask": mask}))

for device in devices:
    if device.gateway_config is not None:
        if device.gateway_config.gateway_type == 1:
            print("Gateway ID: {}\n\t{}".format(device.id, device))

Ruby

Si quieres obtener más información, consulta la documentación de referencia de la API de Ruby de Cloud IoT Core.

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# project_id  = "Your Google Cloud project ID"
# location_id = "The Cloud region for the registry"
# registry_id = "The registry to list gateways in"

require "google/apis/cloudiot_v1"

# Initialize the client and authenticate with the specified scope
Cloudiot   = Google::Apis::CloudiotV1
iot_client = Cloudiot::CloudIotService.new
iot_client.authorization = Google::Auth.get_application_default(
  "https://www.googleapis.com/auth/cloud-platform"
)

# The resource name of the location associated with the project
resource = "projects/#{project_id}/locations/#{location_id}/registries/#{registry_id}"

# List the devices in the provided region
gateways = iot_client.list_project_location_registry_devices(
  resource, field_mask: "config,gatewayConfig"
)

puts "Gateways:"
if gateways.devices && gateways.devices.any?
  gateways.devices.each do |gateway|
    if gateway.gateway_config && gateway.gateway_config.gateway_type == "GATEWAY"
      puts "\t#{gateway.id}"
    end
  end
else
  puts "\tNo gateways found in this registry."
end

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