@statesync/svelte

Svelte adapter for state-sync. Applies snapshots to a Svelte writable store.

Install

npm install @statesync/svelte @statesync/core

Quick Start

import { createRevisionSync } from '@statesync/core';
import { createSvelteSnapshotApplier } from '@statesync/svelte';
import { writable } from 'svelte/store';

const settings = writable({ theme: 'light', lang: 'en' });

const applier = createSvelteSnapshotApplier(settings);

const handle = createRevisionSync({
  topic: 'settings',
  subscriber: mySubscriber,
  provider: myProvider,
  applier,
});

await handle.start();

Modes

Patch (default)

const applier = createSvelteSnapshotApplier(store);
// Calls store.update(current => ({ ...current, ...patch }))

Replace

const applier = createSvelteSnapshotApplier(store, { mode: 'replace' });
// Full replacement: deletes missing keys, assigns new ones

Options

• toState(data, ctx) — map snapshot data to state patch
• pickKeys / omitKeys — limit which keys are updated
• strict (default: true) — throw if toState returns a non-object

See full documentation.