https://cloud.google.com/apis/docs/cloud-client-libraries

java
https://cloud.google.com/java/docs/reference

auth
https://cloud.google.com/docs/authentication/#api-keys
https://github.com/googleapis/google-cloud-java
https://github.com/googleapis/google-cloud-java#authentication


https://cloud.google.com/java/docs/reference/google-auth-library/latest/overview
https://github.com/googleapis/google-auth-library-java
https://googleapis.dev/java/google-auth-library/latest/

https://github.com/googleapis/java-logging