AddBucketOwner.cs

// Copyright 2020 Google Inc.
//
// 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.

// [START storage_add_bucket_owner]

using Google.Apis.Storage.v1.Data;
using Google.Cloud.Storage.V1;
using System;
using System.Collections.Generic;

public class AddBucketOwnerSample
{
    public Bucket AddBucketOwner(
        string bucketName = "your-unique-bucket-name",
        string userEmail = "dev@iam.gserviceaccount.com")
    {
        var storage = StorageClient.Create();
        var bucket = storage.GetBucket(bucketName, new GetBucketOptions { Projection = Projection.Full });

        bucket.Acl ??= new List<BucketAccessControl>();

        bucket.Acl.Add(new BucketAccessControl
        {
            Bucket = bucketName,
            Entity = $"user-{userEmail}",
            Role = "OWNER",
        });
        var updatedBucket = storage.UpdateBucket(bucket);
        Console.WriteLine($"Added user { userEmail } as an owner on bucket { bucketName }.");
        return updatedBucket;
    }
}
// [END storage_add_bucket_owner]