Interface: TransformOptions

Caller/profile policy for a conversion.

Remarks

assumeTimezoneOffsetMinutes is the only way a naked v2 timestamp acquires a time-of-day in FHIR: the caller asserts the sender's offset (in minutes east of UTC - e.g. -300 for US Eastern standard time). It is a sender-asserted value, flagged as such; absent it, a naked timestamp is reduced to date precision, never assumed to be UTC.

Properties

assumeTimezoneOffsetMinutes?

readonly optional assumeTimezoneOffsetMinutes?: number

The sender's UTC offset in minutes, asserted by the caller to resolve naked timestamps.

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generateId?

readonly optional generateId?: () => string

Allocator for the urn:uuid: Bundle.entry.fullUrl / reference identities the assembler mints. Defaults to crypto.randomUUID. Inject a deterministic generator to make bundle output reproducible (e.g. for golden fixtures). It must return a fresh, unique value per call - the assembler relies on uniqueness for intra-bundle reference integrity.

Returns

string

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namingSystem?

readonly optional namingSystem?: NamingSystemRegistry

The NamingSystemRegistry the message-level transform threads into every datatype conversion (HD → Identifier.system, v2 mnemonic → canonical URI). When omitted, a default registry (createNamingSystem()) is used - it resolves only the FHIR-core-fixed systems and the two unambiguous HD auto-derivations, so an un-seeded assigning authority surfaces a typed issue rather than a guessed system.