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"""This module contains the Amazon DynamoDB Hook."""
from __future__ import annotations

from typing import Iterable

from airflow.exceptions import AirflowException
from import AwsBaseHook

[docs]class DynamoDBHook(AwsBaseHook): """ Interact with Amazon DynamoDB. Provide thick wrapper around :external+boto3:py:class:`boto3.resource("dynamodb") <DynamoDB.ServiceResource>`. :param table_keys: partition key and sort key :param table_name: target DynamoDB table Additional arguments (such as ``aws_conn_id``) may be specified and are passed down to the underlying AwsBaseHook. .. seealso:: - :class:`` """ def __init__( self, *args, table_keys: list | None = None, table_name: str | None = None, **kwargs ) -> None: self.table_keys = table_keys self.table_name = table_name kwargs["resource_type"] = "dynamodb" super().__init__(*args, **kwargs)
[docs] def write_batch_data(self, items: Iterable) -> bool: """ Write batch items to DynamoDB table with provisioned throughout capacity. .. seealso:: - :external+boto3:py:meth:`DynamoDB.ServiceResource.Table` - :external+boto3:py:meth:`DynamoDB.Table.batch_writer` - :external+boto3:py:meth:`DynamoDB.Table.put_item` :param items: list of DynamoDB items. """ try: table = self.get_conn().Table(self.table_name) with table.batch_writer(overwrite_by_pkeys=self.table_keys) as batch: for item in items: batch.put_item(Item=item) return True except Exception as general_error: raise AirflowException(f"Failed to insert items in dynamodb, error: {general_error}")

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