langchain_community.document_loaders.mongodb.MongodbLoader¶

class langchain_community.document_loaders.mongodb.MongodbLoader(connection_string: str, db_name: str, collection_name: str, *, filter_criteria: Optional[Dict] = None, field_names: Optional[Sequence[str]] = None)[source]¶

Load MongoDB documents.

Methods

__init__(connection_string, db_name, ...[, ...])

alazy_load()

A lazy loader for Documents.

aload()

Load data into Document objects.

lazy_load()

A lazy loader for Documents.

load()

Load data into Document objects.

load_and_split([text_splitter])

Load Documents and split into chunks.
Parameters

  • connection_string (str) –

  • db_name (str) –

  • collection_name (str) –

  • filter_criteria (Optional[Dict]) –

  • field_names (Optional[Sequence[str]]) –

__init__(connection_string: str, db_name: str, collection_name: str, *, filter_criteria: Optional[Dict] = None, field_names: Optional[Sequence[str]] = None) → None[source]¶
Parameters

  • connection_string (str) –

  • db_name (str) –

  • collection_name (str) –

  • filter_criteria (Optional[Dict]) –

  • field_names (Optional[Sequence[str]]) –

Return type

None

async alazy_load() → AsyncIterator[Document]¶

A lazy loader for Documents.

Return type

AsyncIterator[Document]

async aload() → List[Document][source]¶

Load data into Document objects.

Return type

List[Document]

lazy_load() → Iterator[Document]¶

A lazy loader for Documents.

Return type

Iterator[Document]

load() → List[Document][source]¶

Load data into Document objects.

Attention:

This implementation starts an asyncio event loop which will only work if running in a sync env. In an async env, it should fail since there is already an event loop running.

This code should be updated to kick off the event loop from a separate thread if running within an async context.

Return type

List[Document]

load_and_split(text_splitter: Optional[TextSplitter] = None) → List[Document]¶

Load Documents and split into chunks. Chunks are returned as Documents.

Do not override this method. It should be considered to be deprecated!

Parameters

text_splitter (Optional[TextSplitter]) – TextSplitter instance to use for splitting documents. Defaults to RecursiveCharacterTextSplitter.

Returns

List of Documents.

Return type

List[Document]

Examples using MongodbLoader¶