Flutter Actions (mutations)

One-shot operations as first-class state, with declarative listeners. More in Github. An Action is a tiny piece of reactive state that represents a single imperative operation — logging in, completing a purchase, deleting a row. It exposes four observable states (idle, loading, success, error) and lets the UI subscribe to lifecycle callbacks (onSuccess, onError, onLoading) instead of awaiting futures and wrapping them in try/catch. This pattern is directly inspired by React Query's useMutatio...