Delete subscriptions

You can delete Pub/Sub subscriptions with the Google Cloud console, Google Cloud CLI, client library, or Pub/Sub API.

This document discusses how to delete subscriptions in Pub/Sub.

Before you begin

Required roles and permissions

To get the permissions that you need to delete a subscription, ask your administrator to grant you the Pub/Sub Editor (roles/pubsub.editor) IAM role on your subscription or project that contains the subscription.

This predefined role contains the permissions required to delete a subscription. To see the exact permissions that are required, expand the Required permissions section:

Required permissions

  • pubsub.subscriptions.delete
  • pubsub.subscriptions.list
    • This permission is only required when deleting subscriptions using the Google Cloud console.

You might also be able to get these permissions with other custom roles or predefined Pub/Sub roles.

Delete subscriptions

Console

  1. In the Google Cloud console, go to the Subscriptions page.

    Go to Subscriptions

  2. Select the subscription to delete.
  3. Click Delete.

gcloud

  1. In the Google Cloud console, activate Cloud Shell.

    Activate Cloud Shell

    At the bottom of the Google Cloud console, a Cloud Shell session starts and displays a command-line prompt. Cloud Shell is a shell environment with the Google Cloud CLI already installed and with values already set for your current project. It can take a few seconds for the session to initialize.

  2. To delete a subscription, run the gcloud pubsub subscriptions delete command:

    gcloud pubsub subscriptions delete SUBSCRIPTION_ID

REST

To delete a subscription, use the projects.subscriptions.delete method:

Request:

The request must be authenticated with an access token in the Authorization header. To obtain an access token for the current Application Default Credentials: gcloud auth application-default print-access-token.

DELETE https://pubsub.googleapis.com/v1/projects/PROJECT_ID/subscriptions/SUBSCRIPTION_ID
Authorization: Bearer ACCESS_TOKEN

Where:

  • PROJECT_ID is your project ID.
  • SUBSCRIPTION_ID is your subscription ID.

Response:

If the request is successful, the response is an empty JSON object.

Delete is an eventually consistent operation, so it might take time for other processes to see its effect.

C++

Before trying this sample, follow the C++ setup instructions in Quickstart: Using Client Libraries. For more information, see the Pub/Sub C++ API reference documentation. 

namespace pubsub_admin = ::google::cloud::pubsub_admin;
namespace pubsub = ::google::cloud::pubsub;
[](pubsub_admin::SubscriptionAdminClient client,
   std::string const& project_id, std::string const& subscription_id) {
  auto status = client.DeleteSubscription(
      pubsub::Subscription(project_id, subscription_id).FullName());
  // Note that kNotFound is a possible result when the library retries.
  if (status.code() == google::cloud::StatusCode::kNotFound) {
    std::cout << "The subscription was not found\n";
    return;
  }
  if (!status.ok()) throw std::runtime_error(status.message());
  std::cout << "The subscription was successfully deleted\n";

C#

Before trying this sample, follow the C# setup instructions in Quickstart: Using Client Libraries. For more information, see the Pub/Sub C# API reference documentation. 


using Google.Cloud.PubSub.V1;
public class DeleteSubscriptionSample
{
    public void DeleteSubscription(string projectId, string subscriptionId)
    {
        SubscriberServiceApiClient subscriber = SubscriberServiceApiClient.Create();
        SubscriptionName subscriptionName = SubscriptionName.FromProjectSubscription(projectId, subscriptionId);
        subscriber.DeleteSubscription(subscriptionName);
    }
}

Go

The following sample uses the major version of the Go Pub/Sub client library (v2). If you are still using the v1 library, see the migration guide to v2. To see a list of v1 code samples, see the deprecated code samples.

Before trying this sample, follow the Go setup instructions in Quickstart: Using Client Libraries. For more information, see the Pub/Sub Go API reference documentation.

import (
	"context"
	"fmt"
	"io"
	"cloud.google.com/go/pubsub/v2"
	"cloud.google.com/go/pubsub/v2/apiv1/pubsubpb"
)
func delete(w io.Writer, projectID, subID string) error {
	// projectID := "my-project-id"
	// subID := "my-sub"
	ctx := context.Background()
	client, err := pubsub.NewClient(ctx, projectID)
	if err != nil {
		return fmt.Errorf("pubsub.NewClient: %w", err)
	}
	defer client.Close()
	req := &pubsubpb.DeleteSubscriptionRequest{
		Subscription: fmt.Sprintf("projects/%s/subscriptions/%s", projectID, subID),
	}
	if err := client.SubscriptionAdminClient.DeleteSubscription(ctx, req); err != nil {
		return fmt.Errorf("Delete: %w", err)
	}
	fmt.Fprintf(w, "Subscription %q deleted.", subID)
	return nil
}

Java

Before trying this sample, follow the Java setup instructions in Quickstart: Using Client Libraries. For more information, see the Pub/Sub Java API reference documentation. 


import com.google.api.gax.rpc.NotFoundException;
import com.google.cloud.pubsub.v1.SubscriptionAdminClient;
import com.google.pubsub.v1.SubscriptionName;
import java.io.IOException;
public class DeleteSubscriptionExample {
  public static void main(String... args) throws Exception {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "your-project-id";
    String subscriptionId = "your-subscription-id";
    deleteSubscriptionExample(projectId, subscriptionId);
  }
  public static void deleteSubscriptionExample(String projectId, String subscriptionId)
      throws IOException {
    try (SubscriptionAdminClient subscriptionAdminClient = SubscriptionAdminClient.create()) {
      SubscriptionName subscriptionName = SubscriptionName.of(projectId, subscriptionId);
      try {
        subscriptionAdminClient.deleteSubscription(subscriptionName);
        System.out.println("Deleted subscription.");
      } catch (NotFoundException e) {
        System.out.println(e.getMessage());
      }
    }
  }
}

Node.js

Before trying this sample, follow the Node.js setup instructions in Quickstart: Using Client Libraries. For more information, see the Pub/Sub Node.js API reference documentation. 

/**
 * TODO(developer): Uncomment this variable before running the sample.
 */
// const subscriptionNameOrId = 'YOUR_SUBSCRIPTION_NAME_OR_ID';
// 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 deleteSubscription(subscriptionNameOrId) {
  // Deletes the subscription
  await pubSubClient.subscription(subscriptionNameOrId).delete();
  console.log(`Subscription ${subscriptionNameOrId} deleted.`);
}

Node.ts

Before trying this sample, follow the Node.js setup instructions in Quickstart: Using Client Libraries. For more information, see the Pub/Sub Node.js API reference documentation. 

/**
 * TODO(developer): Uncomment this variable before running the sample.
 */
// const subscriptionNameOrId = 'YOUR_SUBSCRIPTION_NAME_OR_ID';
// 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 deleteSubscription(subscriptionNameOrId: string) {
  // Deletes the subscription
  await pubSubClient.subscription(subscriptionNameOrId).delete();
  console.log(`Subscription ${subscriptionNameOrId} deleted.`);
}

PHP

Before trying this sample, follow the PHP setup instructions in Quickstart: Using Client Libraries. For more information, see the Pub/Sub PHP API reference documentation. 

use Google\Cloud\PubSub\PubSubClient;
/**
 * Creates a Pub/Sub subscription.
 *
 * @param string $projectId  The Google project ID.
 * @param string $subscriptionName  The Pub/Sub subscription name.
 */
function delete_subscription($projectId, $subscriptionName)
{
    $pubsub = new PubSubClient([
        'projectId' => $projectId,
    ]);
    $subscription = $pubsub->subscription($subscriptionName);
    $subscription->delete();
    printf('Subscription deleted: %s' . PHP_EOL, $subscription->name());
}

Python

Before trying this sample, follow the Python setup instructions in Quickstart: Using Client Libraries. For more information, see the Pub/Sub Python API reference documentation. 

from google.cloud import pubsub_v1
# TODO(developer)
# project_id = "your-project-id"
# subscription_id = "your-subscription-id"
subscriber = pubsub_v1.SubscriberClient()
subscription_path = subscriber.subscription_path(project_id, subscription_id)
# Wrap the subscriber in a 'with' block to automatically call close() to
# close the underlying gRPC channel when done.
with subscriber:
    subscriber.delete_subscription(request={"subscription": subscription_path})
print(f"Subscription deleted: {subscription_path}.")

Ruby

Before trying this sample, follow the Ruby setup instructions in Quickstart: Using Client Libraries. For more information, see the Pub/Sub Ruby API reference documentation. 

# subscription_id = "your-subscription-id"
pubsub = Google::Cloud::Pubsub.new
subscription = pubsub.subscription subscription_id
subscription.delete
puts "Subscription #{subscription_id} deleted."

You can create a subscription with the same name as the one that you just deleted. However, the newly created subscription is entirely independent of the previously deleted one. Messages that are intended for the old subscription are not delivered to the new subscription.

What's next