Obtenir un abonnement Lite

Imprimer le nom, le chemin d'accès du sujet et la configuration de distribution d'un abonnement Lite.

En savoir plus

Pour obtenir une documentation détaillée incluant cet exemple de code, consultez les articles suivants :

• Créer et gérer des abonnements Lite

Exemple de code

Go

Pour vous authentifier auprès de Pub/Sub Lite, configurez les identifiants par défaut de l'application. Pour en savoir plus, consultez Configurer l'authentification pour un environnement de développement local.

import (
	"context"
	"fmt"
	"io"

	"cloud.google.com/go/pubsublite"
)

func getSubscription(w io.Writer, projectID, region, location, subID string) error {
	// projectID := "my-project-id"
	// region := "us-central1"
	// NOTE: location can be either a region ("us-central1") or a zone ("us-central1-a")
	// For a list of valid locations, see https://cloud.google.com/pubsub/lite/docs/locations.
	// location := "us-central1"
	// subID := "my-subscription"
	ctx := context.Background()
	client, err := pubsublite.NewAdminClient(ctx, region)
	if err != nil {
		return fmt.Errorf("pubsublite.NewAdminClient: %w", err)
	}
	defer client.Close()

	subPath := fmt.Sprintf("projects/%s/locations/%s/subscriptions/%s", projectID, location, subID)
	sub, err := client.Subscription(ctx, subPath)
	if err != nil {
		return fmt.Errorf("client.Subscription got err: %w", err)
	}
	fmt.Fprintf(w, "Got subscription: %#v\n", sub)
	return nil
}

Java

Pour vous authentifier auprès de Pub/Sub Lite, configurez les identifiants par défaut de l'application. Pour en savoir plus, consultez Configurer l'authentification pour un environnement de développement local.

import com.google.api.gax.rpc.NotFoundException;
import com.google.cloud.pubsublite.AdminClient;
import com.google.cloud.pubsublite.AdminClientSettings;
import com.google.cloud.pubsublite.CloudRegion;
import com.google.cloud.pubsublite.CloudRegionOrZone;
import com.google.cloud.pubsublite.CloudZone;
import com.google.cloud.pubsublite.ProjectNumber;
import com.google.cloud.pubsublite.SubscriptionName;
import com.google.cloud.pubsublite.SubscriptionPath;
import com.google.cloud.pubsublite.proto.Subscription;
import java.util.concurrent.ExecutionException;

public class GetSubscriptionExample {

  public static void main(String... args) throws Exception {
    // TODO(developer): Replace these variables before running the sample.
    String cloudRegion = "your-cloud-region";
    char zoneId = 'b';
    // Choose an existing subscription.
    String subscriptionId = "your-subscription-id";
    long projectNumber = Long.parseLong("123456789");
    // True if using a regional location. False if using a zonal location.
    // https://cloud.google.com/pubsub/lite/docs/topics
    boolean regional = false;

    getSubscriptionExample(cloudRegion, zoneId, projectNumber, subscriptionId, regional);
  }

  public static void getSubscriptionExample(
      String cloudRegion, char zoneId, long projectNumber, String subscriptionId, boolean regional)
      throws Exception {

    CloudRegionOrZone location;
    if (regional) {
      location = CloudRegionOrZone.of(CloudRegion.of(cloudRegion));
    } else {
      location = CloudRegionOrZone.of(CloudZone.of(CloudRegion.of(cloudRegion), zoneId));
    }

    SubscriptionPath subscriptionPath =
        SubscriptionPath.newBuilder()
            .setLocation(location)
            .setProject(ProjectNumber.of(projectNumber))
            .setName(SubscriptionName.of(subscriptionId))
            .build();

    AdminClientSettings adminClientSettings =
        AdminClientSettings.newBuilder().setRegion(CloudRegion.of(cloudRegion)).build();

    try (AdminClient adminClient = AdminClient.create(adminClientSettings)) {
      Subscription subscription = adminClient.getSubscription(subscriptionPath).get();
      System.out.println(subscription.getAllFields());
    } catch (ExecutionException e) {
      try {
        throw e.getCause();
      } catch (NotFoundException notFound) {
        System.out.println("This subscription is not found.");
      } catch (Throwable throwable) {
        throwable.printStackTrace();
      }
    }
  }
}

Python

Pour vous authentifier auprès de Pub/Sub Lite, configurez le service Identifiants par défaut de l'application. Pour en savoir plus, consultez Configurer l'authentification pour un environnement de développement local.

from google.api_core.exceptions import NotFound
from google.cloud.pubsublite import AdminClient
from google.cloud.pubsublite.types import CloudRegion, CloudZone, SubscriptionPath

# TODO(developer):
# project_number = 1122334455
# cloud_region = "us-central1"
# zone_id = "a"
# subscription_id = "your-subscription-id"
# regional = True

if regional:
    location = CloudRegion(cloud_region)
else:
    location = CloudZone(CloudRegion(cloud_region), zone_id)

subscription_path = SubscriptionPath(project_number, location, subscription_id)

client = AdminClient(cloud_region)
try:
    response = client.get_subscription(subscription_path)
    print(f"{response.name} exists.")
except NotFound:
    print(f"{subscription_path} not found.")

Étapes suivantes

Pour rechercher et filtrer des exemples de code pour d'autres produits Google Cloud, consultez l'explorateur d'exemples Google Cloud.