Chopper is a powerful HTTP client generator for Dart and Flutter, built on source_gen. Inspired by Retrofit, it simplifies API integration by generating type-safe clients from annotations. Developers define endpoints using simple decorators, and Chopper automatically generates the corresponding client code, reducing boilerplate and improving maintainability. It supports serialization, interceptors, and modular design, making it ideal for structured RESTful services across multiple platforms.
Use cases
- Building type-safe REST APIs in Flutter apps
- Automating HTTP client generation from annotations
- Integrating with JSON serialization
- Creating reusable and maintainable network layers
- Supporting multi-platform applications
Key features
- Annotation-based API definition
- Automatic client code generation via source_gen
- Built-in support for JSON serialization
- Interceptor system for request/response manipulation
- Modular and extensible architecture
Suitable for
- Flutter developers seeking clean HTTP client patterns
- Teams using REST APIs with consistent data models
- Projects requiring reduced network-related boilerplate
- Developers familiar with Retrofit or similar libraries
- Applications targeting Android, iOS, Web, macOS, Windows, and Linux
Considerations
- Requires understanding of source_gen and build runners
- Initial setup involves build configuration
- Limited to REST-style APIs (not GraphQL)
- May increase build time due to code generation
- Depends on external serialization libraries like json_annotation
