PushConfig: Unable to set attributes for PushConfig while creating a new subscription.

[NimitSharma]

Thanks for stopping by to let us know something could be better!

PLEASE READ: If you have a support contract with Google, please create an issue in the support console instead of filing on GitHub. This will ensure a timely response.

Please run down the following list and make sure you've tried the usual "quick fixes":

• Search the issues already opened: https://github.com/googleapis/java-pubsub/issues
• Check for answers on StackOverflow: http://stackoverflow.com/questions/tagged/google-cloud-platform

If you are still having issues, please include as much information as possible:

Environment details

1. Specify the API at the beginning of the title. For example, "BigQuery: ...").
   General, Core, and Other are also allowed as types
2. OS type and version: All
3. Java version: JDK 8/11/17
4. version(s): 1.125.13 or earlier

Steps to reproduce

1. Create a topic
2. Create a subscription with Push as delivery type and configure custom attributes while creating the subscription
3. Get the subscription object
4. Call this API subscription.getPushConfig().getAttributesMap() on subscription object.

Code example

/*
 * Copyright 2016 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package pubsub;

// [START pubsub_create_push_subscription]

import com.google.cloud.pubsub.v1.SubscriptionAdminClient;
import com.google.pubsub.v1.PushConfig;
import com.google.pubsub.v1.Subscription;
import com.google.pubsub.v1.SubscriptionName;
import com.google.pubsub.v1.TopicName;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

public class CreatePushSubscriptionExample {
  public static void main(String... args) throws Exception {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "project-id";
    String subscriptionId = "sub-test";
    String topicId = "topic-test";
    String pushEndpoint = "https://my-test-project.appspot.com/push";

    createPushSubscriptionExample(projectId, subscriptionId, topicId, pushEndpoint);
  }

  public static void createPushSubscriptionExample(
      String projectId, String subscriptionId, String topicId, String pushEndpoint)
      throws IOException {
    try (SubscriptionAdminClient subscriptionAdminClient = SubscriptionAdminClient.create()) {
      TopicName topicName = TopicName.of(projectId, topicId);
      SubscriptionName subscriptionName = SubscriptionName.of(projectId, subscriptionId);

      Map<String, String> attributes = new HashMap<>();
      attributes.put("test1", "v1");
      attributes.put("test2", "v2");
      attributes.put("test3", "v3");

      PushConfig pushConfig = PushConfig.newBuilder().setPushEndpoint(pushEndpoint).putAllAttributes(attributes).build();


      // Create a push subscription with default acknowledgement deadline of 10 seconds.
      // Messages not successfully acknowledged within 10 seconds will get resent by the server.
      Subscription subscription =
          subscriptionAdminClient.createSubscription(subscriptionName, topicName, pushConfig, 10);
      System.out.println("Custom attributes: " + subscription.getPushConfig().getAttributesMap());
    }
  }
}
// [END pubsub_create_push_subscription]

Result:
Custom attributes: {x-goog-version=v1}
It must include other attributes as well.

Stack trace

NA since I am getting the proper subscription object but it does not contains custom attributes configured while creating the subscription. It only has a default attribute named "x-goog-version". However, when I try to update the subscription then the custom attributes are coming properly.

External references such as API reference guides

• ?

Any additional information below

I am getting the proper subscription object but it does not contains custom attributes configured while creating the subscription. It only has a default attribute named "x-goog-version". However, when I try to update the subscription then the custom attributes are coming properly.

Following these steps guarantees the quickest resolution possible.

Thanks!

[maitrimangal]

Hi thank you for your question. I believe that currently the only supported push-endpoint attribute is x-goog-version, which you can use to change the format of the push message.

Are you trying to set push-endpoint attribute or something else?