36 lines
1.1 KiB
TypeScript
36 lines
1.1 KiB
TypeScript
import { GeoCoordinates } from "../../types";
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import { CodedError, ErrorCode } from "../../errors";
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import { httpJSONRequest } from "../weather";
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import { Geocoder } from "./Geocoder";
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export default class GoogleMaps extends Geocoder {
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private readonly API_KEY: string;
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public constructor() {
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super();
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this.API_KEY = process.env.GOOGLE_MAPS_API_KEY;
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if ( !this.API_KEY ) {
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throw "GOOGLE_MAPS_API_KEY environment variable is not defined.";
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}
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}
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public async geocodeLocation( location: string ): Promise<GeoCoordinates> {
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// Generate URL for Google Maps geocoding request
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const url = `https://maps.googleapis.com/maps/api/geocode/json?key=${ this.API_KEY }&address=${ encodeURIComponent( location ) }`;
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let data;
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try {
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data = await httpJSONRequest( url );
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} catch ( err ) {
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// If the request fails, indicate no data was found.
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throw new CodedError( ErrorCode.LocationServiceApiError );
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}
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if ( !data.results.length ) {
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throw new CodedError( ErrorCode.NoLocationFound );
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}
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return [ data.results[ 0 ].geometry.location.lat, data.results[ 0 ].geometry.location.lng ];
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}
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}
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