Reflex Cloud - Fast, secure & scalable hosting. One command to deploy.

Configuration

Reflex apps can be configured using a configuration file, environment variables, and command line arguments.

Configuration File

Running reflex init will create an rxconfig.py file in your root directory. You can pass keyword arguments to the Config class to configure your app.

For example:

See the config reference for all the parameters available.

Environment Variables

You can override the configuration file by setting environment variables. For example, to override the frontend_port setting, you can set the FRONTEND_PORT environment variable.

Command Line Arguments

Finally, you can override the configuration file and environment variables by passing command line arguments to reflex run.

See the CLI reference for all the arguments available.

Customizable App Data Directory

The REFLEX_DIR environment variable can be set, which allows users to set the location where Reflex writes helper tools like Bun and NodeJS.

By default we use Platform specific directories:

On windows, C:/Users/<username>/AppData/Local/reflex is used.

On macOS, ~/Library/Application Support/reflex is used.

On linux, ~/.local/share/reflex is used.