How To Write A Proper Dart Data Model (AI Prompt Included)

Here is how you can create professional Dart data models by hand, with various packages, and with AI assistance to make your life easier.

Made with Microsoft Designer

Writing good data models is essential for every developer. In this article I want to show you how to write a proper Dart data model manually, with package support, through AI assistance, or with a web tool. Take this as a starting point to write better models in the future.

What a proper data model should contain

A data model usually has the following capabilities:

1. Contains all required properties
   This should be obvious :)
2. Is immutable
   Immutable means you cannot change the object once it is created. Mutable object tend to produce more errors if you are not careful enough and can introduce bugs more easily.
3. Offers a copy option
   This is a way to handle the immutability. Instead of changing a value in your original object, you create a copy of it with the changes.
4. Has a serialization/deserialization feature
   When working with database or APIs, this is a must-have feature. JSON is the default data format of the internet but there are also other…