Building SAAS Application with Flask

The App's Architecture

• Gunicorn
• Flask
• Celery
• Redis (Backend Message Broker for Celery)
• PostgreSQL & SQLAlchemy
• Click (CLI)
• Stripe (Payment Gateway)
• Docker

Flask Blueprint

Blueprint helps to organize all routes and structures

• Blueprint allows to break the app into components
• With blueprint, templates and routes are neatly contained
• Eveything becomes maintainable
• It is easy to share code between blueprints

Jinja2

Jinja2 is a designer friendly templating language for Python. Jinja 2's main features are:

• Template Inheritance
• HTML escaping
• Speed and efficiency
• FLexibility and extensibility

It allows us to:

• Add programming constructs to HTML templates
• Transfer info from Flask to HTML templates
• lets us separate data from the presentation