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@polyweave/durability (1.0.1)

Published 2026-07-10 17:36:37 +00:00 by Dvorak

Installation

Set up this registry in your project .npmrc file:

@polyweave:registry=https://hub.kl1.tenere.ai/api/packages/Polyweave/npm/

To install the package using npm, run the following command:

npm install @polyweave/durability@1.0.1

or add it to the package.json file:

"@polyweave/durability": "1.0.1"

For more information on the npm registry, see the documentation.

About this package

@polyweave/durability

WAL-based crash recovery, segmented SSTable-style stores, checkpoint/recovery managers, durable pipelines and routers for Polyweave.

This package consolidates what was previously split across @polyweave/core/durability and @polyweave/persistence:

• WAL stores — MemoryWALStore, FileWALStore (Maplet-based, segmented), and the legacy JSONL FileWALStore
• Checkpoint / recovery managers — CheckpointManager, RecoveryManager
• Durable pipelines & routers — createDurablePipeline, createDurableRouter, createDurableSystem, createDurableConversation
• Snapshot helpers (formerly @polyweave/persistence) — createTreeSnapshotClient, createFactSnapshotClient, normalizeTreeCheckpoint, restoreStoreFromCheckpoint, checkpointTree, checkpointFacts, rebuildTextIndexFromTree
• WAL entry types & serializers — WALEntryType, createFrameEnqueuedEntry, etc.

Synopsis

import { FileWALStore, createDurablePipeline } from '@polyweave/durability';

const walStore = new FileWALStore({
  dataDir: '/var/lib/polyweave/wal',
  compaction: { autoCompaction: true, maxSegmentSize: 1 << 20 }
});

const pipeline = createDurablePipeline({
  inner: myAdapter,
  walStore,
  wrapperId: 'chat-1'
});

await pipeline.sink.write({ type: 'TEXT', content: { text: 'hello' } });

Snapshot helpers

import {
  createTreeSnapshotClient,
  checkpointTree,
  restoreStoreFromCheckpoint,
  normalizeTreeCheckpoint
} from '@polyweave/durability';

const snapshotClient = createTreeSnapshotClient(treeStore, 'full');

checkpointTree(walStore, snapshotClient, { wrapperId: 'tree', wrapperType: 'treeStore' }, (err) => {
  if (err) throw err;
});

restoreStoreFromCheckpoint({
  walStore,
  store: restoredStore,
  wrapperId: 'tree',
  wrapperType: 'treeStore',
  normalizeState: normalizeTreeCheckpoint
});

Install

npm install @polyweave/durability

Tests

npm run test:unit       # fast unit tests
npm run test:property   # property-based tests
npm test                # alias for test:unit

Requirements

Node.js 18 or later. ESM only. Peer-depends on @polyweave/core.

License

MIT

Dependencies

Development Dependencies

ID	Version
@rigor/core	*
fast-check	^3.23.2

Peer Dependencies

ID	Version
@polyweave/core	^1.0.0

Keywords

polyweave wal durability crash-recovery checkpoint maplet sstable

Details

npm

2026-07-10 17:36:37 +00:00

16

John Dvorak

SEE LICENSE IN LICENSE

30 KiB

Assets (1)

durability-1.0.1.tgz 30 KiB

Versions (6) View all

1.0.9 2026-07-11

1.0.6 2026-07-10

1.0.5 2026-07-10

1.0.2 2026-07-10

1.0.1 2026-07-10