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Créer un sujet avec ingestion Azure Event Hubs

En savoir plus

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

Créer un sujet d'importation Azure Event Hubs

Exemple de code

C++

Avant d'essayer cet exemple, suivez les instructions de configuration pour C++ du guide de démarrage rapide de Pub/Sub : utiliser les bibliothèques clientes. Pour en savoir plus, consultez la documentation de référence sur l'API Pub/Sub C++.

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

namespace pubsub = ::google::cloud::pubsub;
namespace pubsub_admin = ::google::cloud::pubsub_admin;
[](pubsub_admin::TopicAdminClient client, std::string project_id,
   std::string topic_id, std::string const& resource_group,
   std::string const& event_hubs_namespace, std::string const& event_hub,
   std::string const& client_id, std::string const& tenant_id,
   std::string const& subscription_id,
   std::string const& gcp_service_account) {
  google::pubsub::v1::Topic request;
  request.set_name(
      pubsub::Topic(std::move(project_id), std::move(topic_id)).FullName());
  auto* azure_event_hubs = request.mutable_ingestion_data_source_settings()
                               ->mutable_azure_event_hubs();
  azure_event_hubs->set_resource_group(resource_group);
  azure_event_hubs->set_namespace_(event_hubs_namespace);
  azure_event_hubs->set_event_hub(event_hub);
  azure_event_hubs->set_client_id(client_id);
  azure_event_hubs->set_tenant_id(tenant_id);
  azure_event_hubs->set_subscription_id(subscription_id);
  azure_event_hubs->set_gcp_service_account(gcp_service_account);

  auto topic = client.CreateTopic(request);
  // Note that kAlreadyExists is a possible error when the library retries.
  if (topic.status().code() == google::cloud::StatusCode::kAlreadyExists) {
    std::cout << "The topic already exists\n";
    return;
  }
  if (!topic) throw std::move(topic).status();

  std::cout << "The topic was successfully created: " << topic->DebugString()
            << "\n";
}

Go

Avant d'essayer cet exemple, suivez les instructions de configuration pour Go du guide de démarrage rapide de Pub/Sub : utiliser les bibliothèques clientes. Pour en savoir plus, consultez la documentation de référence sur l'API Pub/Sub Go.

import (
	"context"
	"fmt"
	"io"

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

func createTopicWithAzureEventHubsIngestion(w io.Writer, projectID, topicID, resourceGroup, namespace, eventHub, clientID, tenantID, subID, gcpSA string) error {
	// projectID := "my-project-id"
	// topicID := "my-topic"

	// // Azure Event Hubs ingestion settings.
	// resourceGroup := "resource-group"
	// namespace := "namespace"
	// eventHub := "event-hub"
	// clientID := "client-id"
	// tenantID := "tenant-id"
	// subID := "subscription-id"
	// gcpSA := "gcp-service-account"

	ctx := context.Background()
	client, err := pubsub.NewClient(ctx, projectID)
	if err != nil {
		return fmt.Errorf("pubsub.NewClient: %w", err)
	}
	defer client.Close()

	cfg := &pubsub.TopicConfig{
		IngestionDataSourceSettings: &pubsub.IngestionDataSourceSettings{
			Source: &pubsub.IngestionDataSourceAzureEventHubs{
				ResourceGroup:     resourceGroup,
				Namespace:         namespace,
				EventHub:          eventHub,
				ClientID:          clientID,
				TenantID:          tenantID,
				SubscriptionID:    subID,
				GCPServiceAccount: gcpSA,
			},
		},
	}
	t, err := client.CreateTopicWithConfig(ctx, topicID, cfg)
	if err != nil {
		return fmt.Errorf("CreateTopic: %w", err)
	}
	fmt.Fprintf(w, "Created topic with azure event hubs ingestion: %v\n", t)
	return nil
}

Java

Avant d'essayer cet exemple, suivez les instructions de configuration pour Java du guide de démarrage rapide de Pub/Sub : utiliser les bibliothèques clientes. Pour en savoir plus, consultez la documentation de référence sur l'API Pub/Sub Java.


import com.google.cloud.pubsub.v1.TopicAdminClient;
import com.google.pubsub.v1.IngestionDataSourceSettings;
import com.google.pubsub.v1.Topic;
import com.google.pubsub.v1.TopicName;
import java.io.IOException;

public class CreateTopicWithAzureEventHubsIngestionExample {
  public static void main(String... args) throws Exception {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "your-project-id";
    String topicId = "your-topic-id";
    // Azure Event Hubs ingestion settings.
    String resourceGroup = "resource-group";
    String namespace = "namespace";
    String eventHub = "event-hub";
    String clientId = "client-id";
    String tenantId = "tenant-id";
    String subscriptionId = "subscription-id";
    String gcpServiceAccount = "gcp-service-account";

    createTopicWithAzureEventHubsIngestionExample(
        projectId,
        topicId,
        resourceGroup,
        namespace,
        eventHub,
        clientId,
        tenantId,
        subscriptionId,
        gcpServiceAccount);
  }

  public static void createTopicWithAzureEventHubsIngestionExample(
      String projectId,
      String topicId,
      String resourceGroup,
      String namespace,
      String eventHub,
      String clientId,
      String tenantId,
      String subscriptionId,
      String gcpServiceAccount)
      throws IOException {
    try (TopicAdminClient topicAdminClient = TopicAdminClient.create()) {
      TopicName topicName = TopicName.of(projectId, topicId);

      IngestionDataSourceSettings.AzureEventHubs azureEventHubs =
          IngestionDataSourceSettings.AzureEventHubs.newBuilder()
              .setResourceGroup(resourceGroup)
              .setNamespace(namespace)
              .setEventHub(eventHub)
              .setClientId(clientId)
              .setTenantId(tenantId)
              .setSubscriptionId(subscriptionId)
              .setGcpServiceAccount(gcpServiceAccount)
              .build();
      IngestionDataSourceSettings ingestionDataSourceSettings =
          IngestionDataSourceSettings.newBuilder().setAzureEventHubs(azureEventHubs).build();

      Topic topic =
          topicAdminClient.createTopic(
              Topic.newBuilder()
                  .setName(topicName.toString())
                  .setIngestionDataSourceSettings(ingestionDataSourceSettings)
                  .build());

      System.out.println(
          "Created topic with Azure Event Hubs ingestion settings: " + topic.getAllFields());
    }
  }
}

Node.js

/**
 * TODO(developer): Uncomment these variables before running the sample.
 */
// const topicNameOrId = 'YOUR_TOPIC_NAME_OR_ID';
// const resourceGroup = 'YOUR_RESOURCE_GROUP';
// const namespace = 'YOUR_NAMESPACE';
// const eventHub = 'YOUR_EVENT_HUB';
// const clientId = 'YOUR_CLIENT_ID';
// const tenantId = 'YOUR_TENANT_ID';
// const subscriptionId = 'YOUR_SUBSCRIPTION_ID';
// const gcpServiceAccount = 'ingestion-account@...';

// Imports the Google Cloud client library
const {PubSub} = require('@google-cloud/pubsub');

// Creates a client; cache this for further use
const pubSubClient = new PubSub();

async function createTopicWithAzureEventHubsIngestion(
  topicNameOrId,
  resourceGroup,
  namespace,
  eventHub,
  clientId,
  tenantId,
  subscriptionId,
  gcpServiceAccount
) {
  // Creates a new topic with Azure Event Hubs ingestion.
  await pubSubClient.createTopic({
    name: topicNameOrId,
    ingestionDataSourceSettings: {
      azureEventHubs: {
        resourceGroup,
        namespace,
        eventHub,
        clientId,
        tenantId,
        subscriptionId,
        gcpServiceAccount,
      },
    },
  });
  console.log(
    `Topic ${topicNameOrId} created with Azure Event Hubs ingestion.`
  );
}

Node.js

/**
 * TODO(developer): Uncomment these variables before running the sample.
 */
// const topicNameOrId = 'YOUR_TOPIC_NAME_OR_ID';
// const resourceGroup = 'YOUR_RESOURCE_GROUP';
// const namespace = 'YOUR_NAMESPACE';
// const eventHub = 'YOUR_EVENT_HUB';
// const clientId = 'YOUR_CLIENT_ID';
// const tenantId = 'YOUR_TENANT_ID';
// const subscriptionId = 'YOUR_SUBSCRIPTION_ID';
// const gcpServiceAccount = 'ingestion-account@...';

// Imports the Google Cloud client library
import {PubSub} from '@google-cloud/pubsub';

// Creates a client; cache this for further use
const pubSubClient = new PubSub();

async function createTopicWithAzureEventHubsIngestion(
  topicNameOrId: string,
  resourceGroup: string,
  namespace: string,
  eventHub: string,
  clientId: string,
  tenantId: string,
  subscriptionId: string,
  gcpServiceAccount: string
) {
  // Creates a new topic with Azure Event Hubs ingestion.
  await pubSubClient.createTopic({
    name: topicNameOrId,
    ingestionDataSourceSettings: {
      azureEventHubs: {
        resourceGroup,
        namespace,
        eventHub,
        clientId,
        tenantId,
        subscriptionId,
        gcpServiceAccount,
      },
    },
  });
  console.log(
    `Topic ${topicNameOrId} created with Azure Event Hubs ingestion.`
  );
}

Python

Avant d'essayer cet exemple, suivez les instructions de configuration pour Python du guide de démarrage rapide de Pub/Sub : utiliser les bibliothèques clientes. Pour en savoir plus, consultez la documentation de référence sur l'API Pub/Sub Python.

from google.cloud import pubsub_v1
from google.pubsub_v1.types import Topic
from google.pubsub_v1.types import IngestionDataSourceSettings

# TODO(developer)
# project_id = "your-project-id"
# topic_id = "your-topic-id"
# resource_group = "your-resource-group"
# namespace = "your-namespace"
# event_hub = "your-event-hub"
# client_id = "your-client-id"
# tenant_id = "your-tenant-id"
# subscription_id = "your-subscription-id"
# gcp_service_account = "your-gcp-service-account"

publisher = pubsub_v1.PublisherClient()
topic_path = publisher.topic_path(project_id, topic_id)

request = Topic(
    name=topic_path,
    ingestion_data_source_settings=IngestionDataSourceSettings(
        azure_event_hubs=IngestionDataSourceSettings.AzureEventHubs(
            resource_group=resource_group,
            namespace=namespace,
            event_hub=event_hub,
            client_id=client_id,
            tenant_id=tenant_id,
            subscription_id=subscription_id,
            gcp_service_account=gcp_service_account,
        )
    ),
)

topic = publisher.create_topic(request=request)

print(f"Created topic: {topic.name} with Azure Event Hubs Ingestion Settings")

Étape suivante

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