DB_TYPE = (mysql|sqlite|...)
DB_HOST = database_host
DB_NAME = database_name
DB_USERNAME = database_username
DB_PASSWORD = database_password

SERVER_PORT = portnumber

JWT_SECRET = ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890
JWT_EXPIRATION = [0-9]*(y|d|h|m|s)
REFRESH_EXPIRATION = [0-9]*(y|d|h|m|s)

MAIL_USERNAME = mail_username
MAIL_PASSWORD = mail_password
MAIL_HOST = mail_hoststring
MAIL_PORT = mail_portnumber
MAIL_SECURE (true|false) // true for port 465, fals for other ports

CLUB_NAME = clubname