Overview
dart_either is a Dart package providing an Either monad for type-safe error handling and railway-oriented programming. It enables clean, functional error management by representing results as either a successful value (Right) or an error (Left). The package supports Monad comprehensions, async map, and async flatMap operations, making it ideal for chaining asynchronous workflows with clear error propagation. Designed for Dart and Flutter, it enhances code readability and maintainability in complex data flows.
Use cases
- Error handling in async operations
- Functional programming patterns in Flutter
- Chaining multiple transformations safely
- Railway-oriented programming workflows
- Type-safe result handling
Key features
- Either monad implementation
- Async map and flatMap support
- Monad comprehensions
- Type-safe error handling
- Railway oriented programming
Suitable for
- Developers using functional patterns
- Flutter apps needing robust error handling
- Teams adopting railway-oriented programming
- Projects requiring clean async flow management
- Those seeking alternatives to try-catch blocks
Considerations
- Requires understanding of functional programming concepts
- May increase learning curve for beginners
- Best suited for projects embracing functional paradigms
- Not necessary for simple error handling
- Integration with existing code may require refactoring