Configuration

Drakken’s default configuration dictionary is in drakken.config. You can override or extend the configuration by importing settings in a JSON or YAML file.

Create a myapp.json file containing the following:

{
 "APP_NAME": "My test app",
}

Add the following to app.py:

import drakken.config as config

config_file_path = os.getenv('MY_CONFIG_PATH')
config.load(config_file_path)
name = config.get('APP_NAME')

In your shell:

> export MY_CONFIG_PATH='/path/to/myapp.json'
> python app.py

Name	Usage
APP_NAME	Application name used in logging.
DATABASE_URL	Database connection string.
DEBUG	Boolean: set to True to display server error traceback during unit tests. Default: False.
STATIC_DIR	Static file path. If it’s not an absolute path, it’s treated as a path relative to the app module. Default: ‘static’.
TEMPLATE_DIR	Template file path.
TRAILING_SLASH_REDIRECT	Redirect visitors who forget a trailing slash or add one by accident. Default: False.
Session Handling
CSRF_TOKEN_BYTES	Cross-Site Request Forgery token length in bytes.
MIN_PASSWORD_LENGTH	Minimum number of password characters.
MAX_PASSWORD_LENGTH	Maximum number of password characters. Keep it small to prevent password DOS attacks.
SALT_BYTES	Password salt string length in bytes.
SESSION_COOKIE_AGE	Session cookie age in seconds. Set to 0 to close the session when the browser closes.
SESSION_COOKIE_SECURE	Boolean: if True, session ID cookie is sent only if SSL is detected.
SESSION_TOKEN_BYTES	Session token length in bytes.
USERNAME	Boolean: if True, log in with user name. If False, log in with email address.
Email
ADMINS	List of administrator email addresses to receive server mail.
DEFAULT_FROM_EMAIL	Email From address the server uses.
EMAIL_HOST	Email host name. Default: ‘localhost’.
EMAIL_HOST_PASSWORD	Email server password.
EMAIL_HOST_USER	Email server user name, for logging into an external mail provider.
EMAIL_PORT	Email port.
EMAIL_REQUIRE_SSL	Boolean: if True, email server requires SSL. Default: False
Email Rate Limiting
ADMIN_MAIL_LIMIT	Integer: maximum amount of admin email sent.
ADMIN_MAIL_UNIT	SECOND, MINUTE, HOUR, or DAY.