http_client_logging.py

import firebase_admin
from firebase_admin import messaging


def enable_http_client_logging():
    import http.client as http_client
    http_client.HTTPConnection.debuglevel = 1


if __name__ == '__main__':
    enable_http_client_logging()
    firebase_admin.initialize_app()
    msg = messaging.Message(
        notification=messaging.Notification(title='Hello world!'),
        topic='test',
    )
    msg_id = messaging.send(msg)
    print(msg_id)