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@kunickiaj/backstage-plugin-catalog-history-node

v0.5.0

Published

Backend-only contracts and service refs for the Backstage catalog history plugin family.

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Links

Git

Maintainers

kunickiajkunickiaj

Keywords

backstagebackstage-pluginnode-librarycatalogaudithistory

Readme

@kunickiaj/backstage-plugin-catalog-history-node

Backend-only contracts and service refs for the Backstage catalog history plugin family.

This package owns:

  • the HistoryStore write contract and its row/cycle types (EntityRow, CycleInput, CaptureSource);
  • historyStoreServiceRef, the plugin-scoped service ref that backend modules use to obtain a history store through Backstage DI;
  • HistoryQueryService, the backend-only read contract for timelines, cycles, versions, as-of reads, and diffs;
  • InMemoryHistoryStore and InMemoryHistoryQueryService, test doubles for history integrations, exported from the @kunickiaj/backstage-plugin-catalog-history-node/testUtils subpath so they stay out of the production contract surface.

Custom store implementations can optionally implement HistoryStore.ensureReady() for schema bootstrap or other startup preparation. Consumers call it before registering capture layers; simple in-memory or always-ready stores can omit it.

CaptureSource and MutationType are aliases of the isomorphic enums in @kunickiaj/backstage-plugin-catalog-history-common, so backend and frontend code share one vocabulary.

The default service factories ship with @kunickiaj/backstage-plugin-catalog-history-storage-node. The 0.2.0 query router and service wiring use the same history storage as the catalog writer rather than a separate plugin-scoped database. Frontend packages must not depend on this package.

For architecture and roadmap details, see the workspace README.