Build A Saas App With Flask

Abstract

1. Introduction

You'll need to enable Docker Compose v2 support if you're using Docker Desktop. On native Linux without Docker Desktop you can install it as a plugin to Docker. It's been generally available for a while now and is stable. This project uses specific Docker Compose v2 features that only work with Docker Compose v2 2.20.2+.

Did you receive a depends_on "Additional property required is not allowed" error? Please update to at least Docker Compose v2.20.2+ or Docker Desktop

Did you receive an error about a port being in use? Chances are it's because something on your machine is already running on port 8000. Check out the docs in the .env file for the DOCKER_WEB_PORT_FORWARD variable to fix this.

2. Objective

Learn how to build a production ready web app with Flask and Docker.

This project demonstrates how HTML, Flask, Python can be applied to a real-world Full Stack Web Development problem.

4. Technology Stack

5. System Requirements

General requirements for this technology stack — check the README for exact versions.

• A modern web browser
• VS Code or any code editor
• Python 3.8 or later
• pip / virtualenv for dependencies
• VS Code, PyCharm or Jupyter Notebook
• Git (to clone the repository)

6. Installation & Setup

git clone https://github.com/nickjj/build-a-saas-app-with-flask.git
cd build-a-saas-app-with-flask

cp .env.example .env
docker compose up --build

Full setup instructions are in the project README.

7. Future Enhancements

Suggested extensions you can add to make this your own project.

• Add role-based access control
• Deploy on a VPS or cPanel hosting with a custom domain
• Add automated tests and a CI pipeline

8. Viva / Review Questions

Common questions examiners ask for projects in this domain.

1. Explain the frontend, backend and database layers of this application.
2. How is user authentication and authorisation implemented?
3. Describe the main database tables / collections and their relationships.
4. Which REST APIs or routes are exposed and what do they return?
5. How would you deploy this application to production?

9. Source Code & License

This project is developed by nickjj and published on GitHub under the MIT License. Please follow the license terms and credit the original author when you use or modify this code.