Overview
cached_value is a lightweight Flutter/Dart package that provides an easy way to cache values derived from expensive operations. It ensures that once a value is computed, it is stored and reused without recomputation, improving performance and reducing latency. The package supports asynchronous operations and automatically handles caching with configurable expiration times. Ideal for scenarios like API responses, complex calculations, or data parsing where repeated computation should be avoided.
Use cases
- Caching API responses
- Storing computed results
- Reducing redundant data processing
- Improving app responsiveness
- Managing expensive initialization tasks
- Persisting temporary state
Key features
- Simple async caching
- Configurable expiration
- Automatic re-computation on expiry
- Supports null-safe values
- Lightweight and minimal dependencies
- Cross-platform compatibility
Suitable for
- Developers seeking simple caching
- Apps with frequent expensive computations
- Performance optimization projects
- State management with cached data
- Prototyping rapid caching solutions
Considerations
- Not suitable for large datasets
- No built-in persistence across app restarts
- Manual cache eviction required in some cases
- Limited to in-memory storage
- Best for short-lived cached values
- Does not support complex cache policies