How to authenticate to Google Cloud API without Application Default Credentials or Cloud SDK?
I'm trying to access the Google Cloud API from an AWS Lambda function but I don't know how to authenticate. The auth guide in the Google Cloud documentation ( https://cloud.google.com/docs/authentication ) wants me to download a credentials JSON file and use Application Default Credentials, but as anyone who has used hosted functions already knows, the point is that you don't need to manage a server or runtime environment, so Lambda doesn't give me the ability to store arbitrary files in the environment of the running code. I can use the Cloud SDK locally to get an access token but it expires