effect-patterns-error-handling

Handle different error types in Effect-TS by defining custom tagged errors like NetworkError or ValidationError, then use Effect.mapError and Effect.catchTag to apply specific recovery strategies per error class.

Implement retry patterns in Effect-TS by combining tagged domain errors with retry and backoff strategies, ensuring precise recovery and clear error context across business-logic flows and network calls.

catchTag works in TypeScript functional programming by intercepting specific tagged errors within an Effect workflow, allowing you to transform or recover from distinct domain errors while letting other failures propagate.

Yes, you can use Effect-TS error handling for data validation and network calls by defining distinct tagged error classes and applying mapError to provide context-rich error propagation across different application layers.

Use catchAll for TypeScript error handling when you need a single recovery strategy for all remaining failures, whereas catchTag targets specific tagged domain errors for precise per-error recovery logic.

Tagged errors are needed for domain-aware error handling in Effect-TS because they enable the type system to distinguish between different failure types, allowing precise recovery strategies and clear error context across application layers.