---
title: MongoDB Reader
 | LlamaIndex OSS Documentation
---

Demonstrates our MongoDB data connector

```
%pip install llama-index-readers-mongodb
```

```
import logging
import sys


logging.basicConfig(stream=sys.stdout, level=logging.INFO)
logging.getLogger().addHandler(logging.StreamHandler(stream=sys.stdout))
```

If you’re opening this Notebook on colab, you will probably need to install LlamaIndex 🦙 and pymongo.

```
!pip install llama-index pymongo
```

```
from llama_index.core import SummaryIndex
from llama_index.readers.mongodb import SimpleMongoReader
from IPython.display import Markdown, display
import os
```

```
host = "<host>"
port = "<port>"
db_name = "<db_name>"
collection_name = "<collection_name>"
# query_dict is passed into db.collection.find()
query_dict = {}
field_names = ["text"]
reader = SimpleMongoReader(host, port)
documents = reader.load_data(
    db_name, collection_name, field_names, query_dict=query_dict
)
```

```
index = SummaryIndex.from_documents(documents)
```

```
# set Logging to DEBUG for more detailed outputs
query_engine = index.as_query_engine()
response = query_engine.query("<query_text>")
```

```
display(Markdown(f"<b>{response}</b>"))
```