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)

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

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]

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]

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]