@offlinesync/server

Reference in-memory sync server for testing and development.

SyncServer

import { SyncServer } from '@offlinesync/server'

const server = new SyncServer()

// Handle a sync request
const response = await server.sync({
  clientId: 'client-1',
  mutations: [],
  cursor: undefined,
})

// Handle a snapshot request
const snapshot = await server.snapshot({
  clientId: 'client-1',
  collections: ['tasks', 'users'],
})

// Server stats
console.log(server.getStats())

Methods

Method	Returns	Description
sync(request)	Promise<SyncResponse>	Process incremental sync
snapshot(request)	Promise<SnapshotResponse>	Process snapshot sync
getStats()	object	Server statistics

ServerChangeLog

Tracks server-side changes per client cursor. Supports cursor-based pagination and pruning.

ServerMutationTracker

Records mutations received from clients. Provides INV-5 deduplication — each mutation is processed exactly once.