Source code for airflow.providers.google.cloud.transfers.gdrive_to_local
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from __future__ import annotations
from typing import TYPE_CHECKING, Sequence
from airflow.models import BaseOperator
from airflow.providers.google.suite.hooks.drive import GoogleDriveHook
from airflow.utils.context import Context
Writes a Google Drive file into local Storage.
For more information on how to use this operator, take a look at the guide:
:param output_file: Path to downloaded file
:param folder_id: The folder id of the folder in which the Google Drive file resides
:param file_name: The name of the file residing in Google Drive
:param gcp_conn_id: The GCP connection ID to use when fetching connection info.
:param drive_id: Optional. The id of the shared Google Drive in which the file resides.
:param delegate_to: The account to impersonate using domain-wide delegation of authority,
if any. For this to work, the service account making the request must have
domain-wide delegation enabled.
:param impersonation_chain: Optional service account to impersonate using short-term
credentials, or chained list of accounts required to get the access_token
of the last account in the list, which will be impersonated in the request.
If set as a string, the account must grant the originating account
the Service Account Token Creator IAM role.
If set as a sequence, the identities from the list must grant
Service Account Token Creator IAM role to the directly preceding identity, with first
account from the list granting this role to the originating account (templated).
[docs] template_fields: Sequence[str] = (
drive_id: str | None = None,
gcp_conn_id: str = "google_cloud_default",
delegate_to: str | None = None,
impersonation_chain: str | Sequence[str] | None = None,
) -> None:
self.output_file = output_file
self.folder_id = folder_id
self.drive_id = drive_id
self.file_name = file_name
self.gcp_conn_id = gcp_conn_id
self.delegate_to = delegate_to
self.impersonation_chain = impersonation_chain
[docs] def execute(self, context: Context):
self.log.info("Executing download: %s into %s", self.file_name, self.output_file)
gdrive_hook = GoogleDriveHook(
file_metadata = gdrive_hook.get_file_id(
folder_id=self.folder_id, file_name=self.file_name, drive_id=self.drive_id
with open(self.output_file, "wb") as file: