Delete a Kafka consumer group

Delete a Kafka consumer group

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

Code sample

Go

Before trying this sample, follow the Go setup instructions in the Managed Service for Apache Kafka quickstart using client libraries. For more information, see the Managed Service for Apache Kafka Go API reference documentation.

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

import (
	"context"
	"fmt"
	"io"

	"cloud.google.com/go/managedkafka/apiv1/managedkafkapb"
	"google.golang.org/api/option"

	managedkafka "cloud.google.com/go/managedkafka/apiv1"
)

func deleteConsumerGroup(w io.Writer, projectID, region, clusterID, consumerGroupID string, opts ...option.ClientOption) error {
	// projectID := "my-project-id"
	// region := "us-central1"
	// clusterID := "my-cluster"
	// consumerGroupID := "my-consumer-group"
	ctx := context.Background()
	client, err := managedkafka.NewClient(ctx, opts...)
	if err != nil {
		return fmt.Errorf("managedkafka.NewClient got err: %w", err)
	}
	defer client.Close()

	clusterPath := fmt.Sprintf("projects/%s/locations/%s/clusters/%s", projectID, region, clusterID)
	consumerGroupPath := fmt.Sprintf("%s/consumerGroups/%s", clusterPath, consumerGroupID)
	req := &managedkafkapb.DeleteConsumerGroupRequest{
		Name: consumerGroupPath,
	}
	if err := client.DeleteConsumerGroup(ctx, req); err != nil {
		return fmt.Errorf("client.DeleteConsumerGroup got err: %w", err)
	}
	fmt.Fprint(w, "Deleted consumer group\n")
	return nil
}

Java

Before trying this sample, follow the Java setup instructions in the Managed Service for Apache Kafka quickstart using client libraries. For more information, see the Managed Service for Apache Kafka Java API reference documentation.

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

import com.google.api.gax.rpc.ApiException;
import com.google.cloud.managedkafka.v1.ConsumerGroupName;
import com.google.cloud.managedkafka.v1.ManagedKafkaClient;
import java.io.IOException;

public class DeleteConsumerGroup {

  public static void main(String[] args) throws Exception {
    // TODO(developer): Replace these variables before running the example.
    String projectId = "my-project-id";
    String region = "my-region"; // e.g. us-east1
    String clusterId = "my-cluster";
    String consumerGroupId = "my-consumer-group";
    deleteConsumerGroup(projectId, region, clusterId, consumerGroupId);
  }

  public static void deleteConsumerGroup(
      String projectId, String region, String clusterId, String consumerGroupId) throws Exception {
    try (ManagedKafkaClient managedKafkaClient = ManagedKafkaClient.create()) {
      // This operation is being handled synchronously.
      managedKafkaClient.deleteConsumerGroup(
          ConsumerGroupName.of(projectId, region, clusterId, consumerGroupId));
      System.out.println("Deleted consumer group");
    } catch (IOException | ApiException e) {
      System.err.printf("managedKafkaClient.getConsumerGroup got err: %s", e.getMessage());
    }
  }
}

Python

Before trying this sample, follow the Python setup instructions in the Managed Service for Apache Kafka quickstart using client libraries. For more information, see the Managed Service for Apache Kafka Python API reference documentation.

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

from google.api_core.exceptions import NotFound
from google.cloud import managedkafka_v1

# TODO(developer)
# project_id = "my-project-id"
# region = "us-central1"
# cluster_id = "my-cluster"
# consumer_group_id = "my-consumer-group"

client = managedkafka_v1.ManagedKafkaClient()

consumer_group_path = client.consumer_group_path(
    project_id, region, cluster_id, consumer_group_id
)
request = managedkafka_v1.DeleteConsumerGroupRequest(
    name=consumer_group_path,
)

try:
    client.delete_consumer_group(request=request)
    print("Deleted consumer group")
except NotFound as e:
    print(f"Failed to delete consumer group {consumer_group_id} with error: {e.message}")

What's next

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