Cashier App

Goals

• Learn how to read and write to a CSV file (database concept)
• Learn CRUD operations
• Learn how to render data to the frontend
• Learn how to make and call APIs
• Learn code reuse: common repository code is reused by different frontend (terminal & API)

3 modes

Terminal Mode

Video (click the image):

TView Mode

Video (click the image):

API Mode

Video (click the image):

Available APIs:

• /api/user/login?username=<username>&password=<password>
• /api/user/logout?username=<username>
• /api/dashboard?cash=<cash>
• /api/products
• /api/cart/add?product_name=<product_name>
• /api/cart/clear
• /api/carts

For simplicity, we only use HTTP GET here. The API also doesn't support multiple concurrent sessions. We will learn about this later :)