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Releases

partyserver@0.5.3

Patch Changes

• #386 8a3bc02 Thanks @threepointone! - Document and test the supported pattern for using PartyServer with Durable Object Facets. No runtime behavior change.

  Background. Facets spawned via ctx.facets.get(name, factory) without an explicit id in FacetStartupOptions inherit the parent DO's ctx.id — including ctx.id.name. PartyServer's name getter reads ctx.id.name straight through, so on an implicit-id facet this.name returns the parent's name rather than the facet's logical name. This is a faithful reflection of the workerd contract, but it's almost never what framework authors expect.

  The fix is at the call site, not in PartyServer: pass id: someBoundDONamespace.idFromName(facetName) to ctx.facets.get(...). The facet then gets its own native ctx.id.name === facetName and PartyServer's name getter does the right thing automatically. No setName() is required, no __ps_name storage record is written, and cold-wake recovery happens for free because the factory re-runs and idFromName is deterministic.

  This release adds:

  • A "Using PartyServer with Durable Object Facets" section in the README that walks through the recommended pattern with a code example, calls out the implicit-id footgun explicitly, and documents that plain-string id values are not a substitute for idFromName(facetName) (workerd treats string ids as idFromString-like, so the resulting facet has no ctx.id.name).
  • setName() docstring updated to clarify that facets are NOT a setName() use case — point to the explicit-id pattern instead. The original setName() ctx.id.name mismatch throw is preserved as a typo guard for the idFromName happy path.
  • End-to-end facet test coverage against the real workerd ctx.facets.get(...) API. A FacetParent / FacetChild fixture exercises both the implicit-id path (pinning the runtime contract that this.name returns the parent's name in that flow — i.e., behavior-as-documentation so framework authors are unsurprised) and the explicit-id path (recommended; verifies that all reasonable id-construction strategies work and that cold wake recovers without any storage record). Plain-string id is also tested; the test asserts it does NOT carry a name, pinning the contract so callers don't get tempted by the type signature.

  The runtime behavior of Server (the name getter, setName(), the legacy __ps_name hydrate inside #ensureInitialized()) is unchanged from 0.5.2.