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storage_set_metadata.py
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48 lines (36 loc) · 1.62 KB
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#!/usr/bin/env python
# Copyright 2020 Google Inc. All Rights Reserved.
#
# 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.
import sys
# [START storage_set_metadata]
from google.cloud import storage
def set_blob_metadata(bucket_name, blob_name):
"""Set a blob's metadata."""
# bucket_name = 'your-bucket-name'
# blob_name = 'your-object-name'
storage_client = storage.Client()
bucket = storage_client.bucket(bucket_name)
blob = bucket.get_blob(blob_name)
metageneration_match_precondition = None
# Optional: set a metageneration-match precondition to avoid potential race
# conditions and data corruptions. The request to patch is aborted if the
# object's metageneration does not match your precondition.
metageneration_match_precondition = blob.metageneration
metadata = {'color': 'Red', 'name': 'Test'}
blob.metadata = metadata
blob.patch(if_metageneration_match=metageneration_match_precondition)
print(f"The metadata for the blob {blob.name} is {blob.metadata}")
# [END storage_set_metadata]
if __name__ == "__main__":
set_blob_metadata(bucket_name=sys.argv[1], blob_name=sys.argv[2])