This application will show an approach for structuring a REST Flask web application for testing, development and production environments.

• Python 3.5.2
• Python virtualenv
• pip3
• MongoDB

Install package requirements with

$ virtualenv -p python3 env
$ source env/bin/activate
$ pip3 install -r requirements.txt

Run application with:

$ python manage.py run

Open the following url on your browser to view swagger documentation https://127.0.0.1:5000/

We will be using a functional structure to modularize our application. Inside the main package, create three more packages namely: controller, service and model. The model package will contain all of our database models while the service package will contain all the business logic of our application and finally the controller package will contain all our application endpoints. The tree structure should now look as follows:

.
├── app
│   ├── __init__.py
│   ├── main
│   │   ├── controller
│   │   │   └── __init__.py
│   │   ├── __init__.py
│   │   ├── model
│   │   │   └── __init__.py
│   │   └── service
│   │       └── __init__.py
│   └── test
│       └── __init__.py
└── requirements.txt