Reading Data From Cloud Storage Via Cloud Functions
The function does not actually receive the contents of the file, just some metadata about it.
You'll want to use the google-cloud-storage
client. See the "Downloading Objects" guide for more details.
Putting that together with the tutorial you're using, you get a function like:
from google.cloud import storage
storage_client = storage.Client()
def hello_gcs_generic(data, context):
bucket = storage_client.get_bucket(data['bucket'])
blob = bucket.blob(data['name'])
contents = blob.download_as_string()
# Process the file contents, etc...
This is an alternative solution using pandas
:
Cloud Function Code:
import pandas as pd
def GCSDataRead(event, context):
bucketName = event['bucket']
blobName = event['name']
fileName = "gs://" + bucketName + "/" + blobName
dataFrame = pd.read_csv(fileName, sep=",")
print(dataFrame)