MongoDB Community Server

1. Download MongoDB Community Server

Go to the official MongoDB website: https://www.mongodb.com/try/download/community
Select your operating system and download the appropriate package.

2. Install MongoDB Community Server

Follow the installation instructions for your operating system to install MongoDB Community Server.

3. Create a Data Directory

MongoDB requires a data directory to store its data files. Create a directory on your system where you want to store the MongoDB data files (e.g., /path/to/data/directory).

4. Start the MongoDB Server

Open a terminal or command prompt.
Navigate to the MongoDB installation directory (e.g., /path/to/mongodb/bin).
Run the following command to start the MongoDB server, replacing /path/to/data/directory with the path to the data directory you created in Step 3:

./mongod --dbpath=/path/to/data/directory

5. Configure MongoDB for Remote Access (Optional)

If you plan to access the MongoDB server from a remote location (e.g., a different machine or a LibreChat instance hosted elsewhere), you need to configure MongoDB for remote access:

Create a configuration file (e.g., /path/to/mongodb/config/mongodb.conf) with the following content:

# Network interfaces
net:
  port: 27017
  bindIp: 0.0.0.0

Stop the MongoDB server if it's running.
Start the MongoDB server with the configuration file:

./mongod --config /path/to/mongodb/config/mongodb.conf

6. Get the Connection String

The connection string for your MongoDB Community Server will be in the following format:

mongodb://[hostname]:[port]

Replace [hostname] with the IP address or hostname of the machine where MongoDB is running, and [port] with the port number (usually 27017).

7. Update the .env File

In your LibreChat project, open the .env file.
Find the MONGO_URI variable and paste your connection string:

MONGO_URI=mongodb://[hostname]:[port]

That's it! You've now set up a MongoDB Community Server for LibreChat. Your LibreChat application should be able to connect to the local MongoDB instance using the connection string you provided.

Note: If you're using LibreChat with Docker, you'll need to utilize the docker-compose.override.yml file. This override file allows you to prevent the installation of the included MongoDB instance. Instead, your LibreChat Docker container will use the local MongoDB Community Server database you've just set up. For more information on using the override file, please refer to our Docker Override Guide.

Example:

services:
  api:
    environment:
    - MONGO_URI=mongodb://user:pass@host1:27017,host2:27017,host3:27017/LibreChat?authSource=admin&replicaSet=setname