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@jorvel/state

v0.2.0

Published

a month ago

Lightweight shared-state primitives for JORVEL micro-frontends (Redux-style store + simple observable store).

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jorvel module-federation state store micro-frontend

@jorvel/state

Lightweight shared-state primitives for JORVEL micro-frontends. Provides:

createStore(initialState, reducer) — Redux-style reducer store with subscribe, dispatch, getState.
createSimpleStore(initial) — observable single-value store with set, get, subscribe.
getStore(key, ...) / getSimpleStore(key, ...) — globally-shared registries pinned to globalThis for safe cross-MFE singleton sharing.
'@jorvel/state/react' — useStore, useStoreSelector adapters built on useSyncExternalStore.

Install

pnpm add @jorvel/state

Why

When @jorvel/state is bundled multiple times (e.g. when the federation runtime fails to share it as singleton), every host/remote ends up with its own private registry — state silently bifurcates. The registries here are pinned to globalThis.__JORVEL_STATE_REGISTRY__ so duplicate bundles still see the same Map.

See the repo root README for the full framework story.