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Flutter Code Generation: Getting Started

Learn how to use code generation to automatically create Dart models, eliminating tedious and repetitive tasks. By Aachman Garg.

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Contents

Flutter Code Generation: Getting Started

25 mins

Getting Started
Why Code Generation?
Setting up Your Initial Project
The Annotations Folder
The Generators Folder
Build.yaml
The Example Folder
Creating the Necessary Annotations
Creating the Annotation Classes
Creating the Generators
Finding Annotated Classes With ModelVisitor
Implementing a Generator for a Subclass
Implementing a Generator for an Extension
Making Builders from the Generators
Testing the Generators
Generating the Code
Where to Go From Here?

Contents

Where to Go From Here?

You can download the completed project files by clicking the Download Materials button at the top or bottom of the tutorial. Now, you know how to create a code generator. Even if you never need to build your own, it’s good to understand how they work under the hood.

If you want to learn more about code generation, here are a few useful resources:

Source Generation and Writing Your Own Package.
How to Speed up Code Generation With build_runner in Dart & Flutter.
The freezed Code Generator.
build_runner package
source_gen package

We hope you enjoyed this tutorial. If you have any questions or comments, please join the forum discussion below!

Contents

Flutter Code Generation: Getting Started

Where to Go From Here?

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