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@mailwoman/annotations

v7.5.0

Published

The annotations composer — a native typed AnnotationSet, the Annotator interface, and OpenCage/native serializers. Each recipe package (timezone, un-locode, coordinate formats, country reference) implements Annotator; this composes them into the block the

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@mailwoman/annotations

The composer for Mailwoman's OpenCage-style enrichment block. A resolved coordinate gets enriched with derived data — timezone, UN/LOCODE, ISO/NUTS, coordinate formats (DMS/MGRS/geohash/Maidenhead/Mercator), calling code, currency, sun times.

import { composeAnnotators, toOpenCage, type Annotator } from "@mailwoman/annotations"

const annotate = composeAnnotators([coordinateFormats, countryReference, timezone])
const set = await annotate({ lat: 38.8977, lon: -77.0365 })

// native (camelCase) for our own API:
set.timezone?.name // "America/New_York"

// OpenCage-keyed for the compat APIs:
toOpenCage(set).timezone // { name: "America/New_York", offset_sec: -18000 }

Design

AnnotationSet is the native typed representation (camelCase, source of truth). Each recipe package implements Annotator — (input: { lat, lon, place? }) => Partial<AnnotationSet> — and fills the slice it owns; composeAnnotators runs them concurrently and merges, skipping any that throw. Two serializers, toOpenCage() and toNative(), render the set at the API edge. One schema, two shapes (the hybrid decision).

Recipe packages: coordinate formats live in @mailwoman/spatial, country reference in @mailwoman/codex, and the data-backed lookups ship standalone (@mailwoman/timezone-lookup, @mailwoman/un-locode-lookup).