listBucketsPartialSuccess.js

/**
 * Copyright 2025 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.
 */

function main() {
  // [START storage_list_buckets_partial_success]
  // Imports the Google Cloud client library
  const {Storage} = require('@google-cloud/storage');

  // Creates a client
  const storage = new Storage();

  async function listBucketsPartialSuccess() {
    const option = {
      returnPartialSuccess: true,
    };
    const result = await storage.getBuckets(option);
    const buckets = result[0]; // Extract the list of successfully retrieved Bucket objects.
    const unreachable = result[3]; // Extract the list of unreachable buckets.

    console.log('Buckets:');
    buckets.forEach(bucket => {
      console.log(bucket.name);
    });

    if (unreachable && unreachable.length > 0) {
      console.log('Unreachable Buckets:');
      unreachable.forEach(item => {
        console.log(item);
      });
    }
  }

  listBucketsPartialSuccess().catch(console.error);
  // [END storage_list_buckets_partial_success]
}

main(...process.argv.slice(2));