sample mongoengine settings

mongo_engine_settings.py

# -*- coding: utf-8 -*-

import os

from mongoengine.connection import connect


DB_NAME = os.getenv('MONGO_DB_NAME') or'local-db'
DB_HOST = os.getenv('MONGO_DB_HOST') or 'localhost'
DB_USER = os.getenv('MONGO_DB_USER') or ''
DB_PASS = os.getenv('MONGO_DB_PASSWORD') or ''
DB_PORT = os.getenv('MONGO_DB_PORT') or '27017'

if DB_USER and DB_PASS:
    MONGO_CONNECTION = connect(DB_NAME,
                               host='mongodb://{user}:{password}@{host}:{db_port}/{db}'.format(user=DB_USER,
                                                                                               host=DB_HOST,
                                                                                               password=DB_PASS,
                                                                                               db_port=DB_PORT,
                                                                                               db=DB_NAME))
else:
    MONGO_CONNECTION = connect(DB_NAME, host='mongodb://{host}:{db_port}/{db}'.format(host=DB_HOST, 
                                                                                      db_port=DB_PORT
                                                                                      db=DB_NAME)