Скачать или смотреть Custom Classes in Flutterflow - a better shopping cart system. Code available too!

Build a powerful shopping cart in FlutterFlow! Learn e-commerce app development, custom class design, database integration, cart logic, product management, and advanced shipping + tax calculations. Discover step-by-step how to add widgets, output JSON, prevent duplicate carts, create custom functions, and lay the groundwork for shipping APIs like FedEx. Custom classes let you pack tight, complex logic into a few lines of code, replacing long-winded action chains for efficient, maintainable apps.

Resources
https://intelligentquestions.dev
https://vibreflow.com


00:00 Introduction
00:13 What's in this tutorial
01:31 Prerequisites - a working shopping cart design
03:51 Where to get my shopping cart designs
04:15 How to import my database
04:55 Adding my custom widgets to the project
06:00 The anatomy of a custom class
08:29 Adapting the custom class to our needs (Perplexity AI)
12:53 Adding Json output to custom class
14:33 Setting the application variables to the classes
17:25 Building the action chain
22:31 Preventing the action chain creating multiple shopping carts
24:08 Custom function to deal with image url to string conversion
28:17 Running the cart for the first time
30:55 Custom function to convert object to usable Json as a list
35:10 Testing the app for a Json list - setting the cart
36:26 Calling class methods
44:53 Set page variables to method results - Total, Shipping and Tax
50:53 Vibe coding the custom class for complex shipping and tax calculations
55:49 Testing the complex shipping and tax.
56:40 Even more complex shipping and tax calculations for API calling (Fedex etc)
01:00:02 Setting the new parameters for complex shipping and tax
01:03:28 It works!!
01:06:36 Conclusion