This application was written on a Windows machine. It utilizes a bat file in order to set Flask environment variables and start the Flask server.
This application assumes Python 3 (3.7.4 at time of writing). Pipenv is used as the virtual envionment -- please visit their Github page for more information.
Inside the pipenv shell, start a Python command line. Run the create-db.py script.
Inside the frontend_src folder, run npm install.
In the pipenv shell, execute the server-start.bat file. This will spin up a Flask server in development mode.
This application utilizes HMR, and as such uses a webpack development server to proxy requests to the Flask server.
Navigate to the frontend_src folder and run the npm run dev command. This will start the Webpack dev server and should listen on a port that's different from your Flask server port. The terminal should display the port in which it's listening. In my case, it was localhost:8080.
Navigate to your Webpack dev server address and you should be all set. Your front end source files should be hot-reloaded onto the page, and all api requests should be proxied to the Flask backend. Data should be persisted inside the local SQLite database you created above.