LlamaIndex Readers Integration: Mongo

Overview

Simple Mongo Reader allows loading data from a MongoDB database. It concatenates specified fields from each document into a single document used by LlamaIndex.

Installation

You can install MongoDB Reader via pip:

bash

pip install llama-index-readers-mongodb

Usage

python

from llama_index.readers.mongodb import SimpleMongoReader

# Initialize SimpleMongoReader
reader = SimpleMongoReader(
    host="<Mongo Host>",  # Mongo host address
    port=27017,  # Mongo port (default: 27017)
    uri="<Mongo Connection String>",  # Provide the URI if not using host and port
)

# Lazy load data from MongoDB
documents = reader.lazy_load_data(
    db_name="<Database Name>",  # Name of the database
    collection_name="<Collection Name>",  # Name of the collection
    field_names=[
        "text"
    ],  # Names of the fields to concatenate (default: ["text"])
    separator="",  # Separator between fields (default: "")
    query_dict=None,  # Query to filter documents (default: None)
    max_docs=0,  # Maximum number of documents to load (default: 0)
    metadata_names=None,  # Names of the fields to add to metadata attribute (default: None)
)

Implementation for MongoDB reader can be found here

This loader is designed to be used as a way to load data into LlamaIndex and/or subsequently used as a Tool in a LangChain Agent.