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import os
import json
from google_auth_oauthlib.flow import InstalledAppFlow
# If modifying these scopes, delete the file token.json.
# If modifying these scopes, delete the file token.json.
SCOPES = [
'https://www.googleapis.com/auth/gmail.send',
'https://www.googleapis.com/auth/drive.file'
]
def get_refresh_token():
"""Shows basic usage of the Gmail API.
Lists the user's Gmail labels.
"""
creds = None
# Check if client_secret.json exists
if not os.path.exists('client_secret.json'):
print("Error: 'client_secret.json' not found.")
print("Please download your OAuth 2.0 Client ID JSON file from Google Cloud Console,")
print("rename it to 'client_secret.json', and place it in this directory.")
return
flow = InstalledAppFlow.from_client_secrets_file(
'client_secret.json', SCOPES)
# Run the local server flow to get credentials
creds = flow.run_local_server(port=0)
print("\n--- Authentication Successful ---")
print("Here are your credentials details. Please add these to your .env file or HF Secrets:\n")
# Extract client config to get ID and Secret easily if needed, though they are in the json file
with open('client_secret.json', 'r') as f:
client_config = json.load(f)
installed = client_config.get('installed', client_config.get('web', {}))
print(f"GOOGLE_CLIENT_ID={installed.get('client_id')}")
print(f"GOOGLE_CLIENT_SECRET={installed.get('client_secret')}")
print(f"GOOGLE_REFRESH_TOKEN={creds.refresh_token}")
print("\n---------------------------------")
print("Note: The access token will expire, but the refresh token is long-lived.")
print("Use the refresh token in your application to get new access tokens automatically.")
if __name__ == '__main__':
get_refresh_token()
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