Month: July 2025

From the “my blog is actually my code backup store” department, this is a simple function I use on Google Cloud to accept a base64-encoded zip file, then unzip it all to a Google Cloud Storage bucket.

import functions_framework
import base64
from google.cloud import storage
import zipfile
import os
import datetime, pytz

@functions_framework.http
def hello_http(request):
    #pull out the base64 encoded data and decode it.
    request_bytes = base64.b64decode(request.get_data())
    print(len(request_bytes))
    print(request.data)
    print(request.content_length)
    print(request.method)
    print(request.method)
    print("request load: " + str(len(request_bytes)))
    #generate working directory prefix name
    datetime_string = datetime.datetime.now(pytz.timezone("US/Central")).isoformat()
    print("Current Chicago Date-Time: %s" % (datetime_string))
    directory_prefix = datetime_string[:19].replace(":", "-")
    #dump to GCS
    gcs_client = storage.Client()
    gcs_bucket = gcs_client.get_bucket("bucket name goes here")
    file_blob = storage.Blob("/zipped/" + directory_prefix + ".zip", gcs_bucket)
    file_blob.upload_from_string(request_bytes, content_type="application/zip", client=gcs_client)
    #dump to temporary directory within functions
    with open("/tmp/" + directory_prefix +  ".zip", "wb") as file:
      file.write(request_bytes)
      file.flush()
      file.close()
    #extract zipfile
    zip_file = zipfile.ZipFile("/tmp/" + directory_prefix + ".zip")
    zip_file.extractall("/tmp/local/unzip/" + directory_prefix + "/")
    #go through extracted files
    for file_name in os.listdir("/tmp/local/unzip/" + directory_prefix + "/"):
      print(str(file_name))
      file_blob = storage.Blob("/open/" + directory_prefix + "/" + file_name + "", gcs_bucket)
      file_blob.upload_from_filename("/tmp/local/unzip/" + directory_prefix + "/" + file_name + "", client=gcs_client)
    print("end")
    return str(len(request_bytes))

You may want to alter the date reference (the US/Central note) but otherwise it’s a small and efficient tool for moving data where I can easily reference it later by date.