State Management

You can manage shared mutable state in Effect-TS using fiber-safe primitives like Ref, SynchronizedRef, and SubscriptionRef to safely handle concurrent updates. These state references provide get, set, and update operations without race conditions.

Ref provides basic mutable reference operations like get and set, while SynchronizedRef offers effectful updates with enhanced concurrency safety for coordinating state across multiple fibers. SynchronizedRef is needed when updates involve effects that must run sequentially.

You implement reactive state in Effect-TS using SubscriptionRef, which provides built-in change notifications for reactive patterns across services. It allows services to subscribe and automatically react whenever the shared state is modified.

You need fiber-safe state primitives when coordinating counters, caches, or reactive configs across concurrent Effect-TS services. These mutable state references ensure safe shared updates and prevent race conditions during parallel fiber execution.

Yes, SubscriptionRef is specifically designed to coordinate reactive configs across Effect-TS services by emitting change notifications whenever state updates occur. This enables services to automatically react to shared configuration changes.