FP-TS Error Handling
Implements type-safe error handling patterns using fp-ts Either and TaskEither to replace unpredictable try-catch blocks.
This skill provides a comprehensive guide to treating errors as values within TypeScript projects by leveraging the fp-ts library. It focuses on replacing traditional exception-based logic with predictable functional patterns like Either for synchronous failures and TaskEither for asynchronous operations. By using these patterns, developers can create cleaner code pipelines, implement robust validation that accumulates multiple errors, and ensure that all failure cases are explicitly handled via the TypeScript type system.
Key Features
01Asynchronous error handling for API calls and database operations
02129 GitHub stars
03Functional composition using pipe and flow for cleaner logic chains
04Advanced error accumulation for complex form validation
05Pattern matching with fold for exhaustive and safe result handling
06Transition from try-catch to type-safe Either and TaskEither patterns
Use Cases
01Refactoring deeply nested try-catch blocks into flat, readable pipelines
02Building API services where every possible failure is explicitly typed and handled
03Implementing form validators that return all validation errors at once instead of stopping at the first one