I want to move the assets to Google Cloud.

[mystery-man]

I am trying to move from local storage to Google Cloud Storage.
How should I attach a secretKey as the service account from Google gives a JSON document?
Is it possible to add a file in the key?

[mystery-man]

I wasn't using Hmac keys for Google Cloud Storage.
Created one using https://cloud.google.com/storage/docs/authentication/managing-hmackeys, and all worked fine.