How to batch delete buckets

Question

How do I delete buckets in a batch?

Here's what i've tried.

def deleteAllBuckets():
    batch = storage_client.batch()
    with batch:
        for bucket in storage_client.list_buckets():
            bucket.delete()

Technically it works because the buckets get deleted, however i'm not convinced i'm sending a single batch request. It looks like i'm sending one request per bucket.

Compare the above code to a batch request in Google Cloud Datastore

def deleteAllEntities():
    query = datastore_client.query(kind="Charge")
    queryIter = query.fetch()

    batch = datastore_client.batch()
    with batch:
        for entity in queryIter:
            batch.delete(entity.key)

You can see that i'm calling a delete method on the batch object. With the storage code, i'm calling delete on the bucket object. Unfortunately the cloud storage python API doesn't have any examples.

Answer 1

When you use the context manager, it automatically adds the request to the batch and it gets executed when exiting the context manager.

However, the problem I see with your code is that you're calling list buckets inside the batch context manager. I think you want to create the bucket iterator outside. Something like this:

def deleteAllBuckets():
    buckets_iterator = storage_client.list_buckets()
    batch = storage_client.batch()
    with batch:
        for bucket in buckets_iterator:
            bucket.delete()