Async topic

Asynchronous work exposed as synchronous reactive state.

AsyncSignal runs a fetcher and publishes the outcome as an AsyncValue: idle, loading, data or error. Loading and error states carry the previous data, so a refetch keeps showing content instead of flashing a spinner, and a new run drops the outcome of any older one still in flight.

Tracking stays fully synchronous — the fetcher runs outside the graph and writes its result back.

Classes

AsyncData<T>

Operation completed with value.

AsyncError<T>

Operation failed with error, optionally carrying the previous data.

AsyncIdle<T>

No operation started yet.

AsyncLoading<T>

Operation in flight, optionally carrying the previous data.

AsyncSignal<T>

A Signal holding the AsyncValue of an asynchronous operation.

AsyncValue<T>

The state of an asynchronous operation exposed as a synchronous value.