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@cnstra/persist

v0.2.0

Published

Persistence layer for CNStra: name<->object registry, resumable checkpoint (resume) serialization, and checkpoint repositories. Core-free (depends only on @cnstra/types).

Vulnerabilities

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Links

Maintainers

abaikov23abaikov23

Keywords

cnstrapersistregistryresumecheckpointresumable

Readme

@cnstra/persist

⚠️ Experimental: API and on-the-wire/stored shapes may change in future versions.

The resumable-execution engine for CNStra — the write side and storage seams behind resume, queue integrations, and the DevTools run/attempt/task view. Core-free (depends only on @cnstra/types + @cnstra/persist-dto); topology is referenced by name everywhere and never persisted (code is its source of truth).

What's in it

  • CNSProgressSerializer — serialize a live stimulation's frontier + context to/from the name-based TCNSProgress.
  • CNSStimulationPersistor — record the full Stimulation → Attempt → Task model (onResponse → an ICNSStimulationRepository). The recorder the queue workers and DevTools share.
  • CNSProgressRecorder — the narrower, frontier-only sibling (writes a checkpoint blob to an ICNSProgressRepository).
  • Storage seams — ICNSStimulationWriter / ICNSStimulationReader / ICNSStimulationRepository (run/attempt/task) and ICNSProgressRepository (frontier).
  • CNSInMemoryStimulationRepository / CNSInMemoryProgressRepository — in-memory reference stores. Bound the stimulation store (maxStimulations / ttlMs / deleteOnComplete) so observe-style use does not leak.
  • CNSPersistOptionsRegistry (+ CNSPersistOptionsRegistryFactory) — the name ⇄ object bridge every serialize/hydrate resolves through.

Postgres adapter: @cnstra/persist-postgres.

Docs

See the full guide: Resumable execution (the model, resume vs observe, stores & bounds) and Persistence & Resume.

License

MIT