Google Display & Video 360 Simple Auth

auth.py

import google.auth
import googleapiclient.discovery

API_NAME = "displayvideo"
API_SCOPES = ["https://www.googleapis.com/auth/display-video"]
API_VERSION = "v1"

credentials, project = google.auth.default(scopes=API_SCOPES)

print(f"Google Cloud Project ID: {project}.")

service = googleapiclient.discovery.build(API_NAME, API_VERSION, credentials=credentials)
service.sdfdownloadtasks().create(body={
  # ...
}).execute()