How to pull buckets and metadata within time range using Python?

[IsaacShoong]

Hello, I was wondering if there are any methods to pull all the buckets and their metadata in a project, when the bucket had been last modified within a specified time window. I understand the Cloud Storage pull method can retrieve buckets, but I would prefer if I didn't have to pull all the buckets. Thank you!

[Robina]

Google Cloud Storage's API doesn't provide a direct way to filter buckets by their last modification date or time window. To retrieve buckets within a specified time window, you typically need to pull a list of all buckets and then filter them based on your criteria.

from google.cloud import storage

client = storage.Client()

# Specify your time window (for example, the last 30 days).
import datetime
from datetime import timedelta

end_date = datetime.datetime.now()
start_date = end_date - timedelta(days=30)

# List all buckets in the project.
buckets = list(client.list_buckets())

# Filter buckets based on last modification time.
filtered_buckets = []
for bucket in buckets:
    bucket_metadata = bucket.get_metadata()
    updated_time = bucket_metadata.get("updated")
    
    if start_date <= updated_time <= end_date:
        filtered_buckets.append(bucket.name)

# filtered_buckets now contains the names of buckets modified within the specified time window.

This method enables you to screen buckets by their most recent modification time without the need to initially retrieve all bucket details.