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Persist with react-native-mmkv via @stainless-code/persist/backends/mmkv (createMmkvStorage). Sync JSON string-wire; id required; optional MMKV encryptionKey (≤16 bytes).
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Gate Alpine.js UI on Persist hydration (Alpine.plugin + useHydrated / $hydrated). Use when wiring HydrationSignal into Alpine data components.
Gate Angular UI on Persist hydration with useHydrated (readonly Signal). Call inside an injection context; use when avoiding flash of default state on async backends.
Gate Lit element UI on Persist hydration with HydrationController. Use when wiring HydrationSignal into a ReactiveControllerHost; not a hook.
Persist with React Native AsyncStorage via @stainless-code/persist/backends/async-storage. Use for RN string-wire JSON state; always gate with useHydrated.
Compress a string-wire StateStorage with @stainless-code/persist/backends/compressed (gzip/deflate). Backend wrapper — compose with createStorage; stack compress-then-encrypt.
Cross-tab sync for backends without storage events via @stainless-code/persist/transport/crosstab (createBroadcastCrossTab). Wrap storage + pass crossTabEventTarget; call close() on teardown.
| name | persist-mmkv |
| description | Persist with react-native-mmkv via @stainless-code/persist/backends/mmkv (createMmkvStorage). Sync JSON string-wire; id required; optional MMKV encryptionKey (≤16 bytes). |
| license | MIT |
| metadata | {"type":"composition","library":"@stainless-code/persist","library_version":"0.4.1","framework":"react-native-mmkv"} |
| requires | ["persist"] |
| sources | ["stainless-code/persist:src/adapters/backends/mmkv.ts"] |
Sync backend — no hydrate UI gate required for flash. JSON string-wire. id namespaces the MMKV file. encryptionKey is MMKV's own key (max 16 bytes), not persist-encrypted.
bun add @stainless-code/persist react-native-mmkv
Peer: react-native-mmkv >=4.0.0.
import { createMmkvStorage } from "@stainless-code/persist/backends/mmkv";
const storage = createMmkvStorage<Prefs>({ id: "app-prefs" })!;
encryptionKey with backends/encrypted.id.createMmkvStorage({ id, path?, encryptionKey? }) · mmkvStateStorage(instance)See also: persist-async-storage; persist-encrypted for WebCrypto AES-GCM.