Python Microservices Development

Configuration

When building applications, you will need to expose options to run them, like the information to connect to a database or any other variable that is specific to a deployment.

Flask uses a mechanism similar to Django in its configuration approach. The Flask object comes with an object called config, which contains some built-in variables, and which can be updated when you start your Flask app via your configuration objects.

For example, you can define a Config class in a prod_settings.py file as follows:

    class Config:         DEBUG = False         SQLURI = 'postgres://tarek:xxx@localhost/db' 

And then, load it from your app object using app.config.from_object :

>>> from flask import Flask >>> app = Flask(__name__) >>> app.config.from_object('prod_settings.Config') ...