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from typing import Any, Iterator
from langchain_core.document_loaders import BaseLoader
from langchain_core.documents import Document
class AirtableLoader(BaseLoader):
"""Load the `Airtable` tables."""
def __init__(
self, api_token: str, table_id: str, base_id: str, **kwargs: Any
) -> None:
"""Initialize with API token and the IDs for table and base.
Args:
api_token: Airtable API token.
table_id: Airtable table ID.
base_id:
**kwargs: Additional parameters to pass to Table.all(). Refer to the
pyairtable documentation for available options:
https://pyairtable.readthedocs.io/en/latest/api.html#pyairtable.Table.all
""" # noqa: E501
self.api_token = api_token
self.table_id = table_id
self.base_id = base_id
self.kwargs = kwargs
def lazy_load(self) -> Iterator[Document]:
"""Lazy load Documents from table."""
from pyairtable import Table
table = Table(self.api_token, self.base_id, self.table_id)
records = table.all(**self.kwargs)
for record in records:
metadata = {
"source": self.base_id + "_" + self.table_id,
"base_id": self.base_id,
"table_id": self.table_id,
}
if "view" in self.kwargs:
metadata["view"] = self.kwargs["view"]
# Need to convert record from dict to str
yield Document(page_content=str(record), metadata=metadata)
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