使用谷歌云中的blob获取文件大小

Question

i use this code to get object of file in google cloud.

client = storage.Client.from_service_account_json("./credential.json")
   bucket = client.get_bucket(bucket)
   object = bucket.blob(fileurlName)

and i have url of file in variable fileurlName, but the results size is none and chunk size is not the same as file size so how can i change it to give me the exact size of file in google cloud?

Answer 1

It's quite tricky.

In fact, when you use the method of the type, you simply ask the client library to build a correct path to access to the object. But you don't access it, you only build a local reference to it. And thus all the value (or almost) are none.

If you want to GET the object, use the get_ method.

In your case replace the bucket.blob(fileurlName) by bucket.get_blob(fileurlName) . This time, the object metadata are really fetched (the API call is performed) and the size field is populated.