forked from MapComplete/MapComplete
42 lines
1.3 KiB
TypeScript
42 lines
1.3 KiB
TypeScript
import { Utils } from "../../Utils"
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import { BBox } from "../BBox"
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import Constants from "../../Models/Constants"
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import { FeatureCollection } from "geojson"
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export interface GeoCodeResult {
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display_name: string
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lat: number
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lon: number
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/**
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* Format:
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* [lat, lat, lon, lon]
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*/
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boundingbox: number[]
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osm_type: "node" | "way" | "relation"
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osm_id: string
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}
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export class Geocoding {
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public static readonly host = Constants.nominatimEndpoint
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static async Search(query: string, bbox: BBox): Promise<GeoCodeResult[]> {
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const b = bbox ?? BBox.global
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const url = `${
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Geocoding.host
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}search?format=json&limit=1&viewbox=${b.getEast()},${b.getNorth()},${b.getWest()},${b.getSouth()}&accept-language=nl&q=${query}`
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return Utils.downloadJson(url)
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}
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static async reverse(
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coordinate: { lon: number; lat: number },
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zoom: number = 17,
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language?: string
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): Promise<FeatureCollection> {
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// https://nominatim.org/release-docs/develop/api/Reverse/
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// IF the zoom is low, it'll only return a country instead of an address
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const url = `${Geocoding.host}reverse?format=geojson&lat=${coordinate.lat}&lon=${
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coordinate.lon
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}&zoom=${Math.ceil(zoom) + 1}&accept-language=${language}`
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return Utils.downloadJson(url)
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}
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}
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