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Apple ⇄ Google Maps convert function
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| import * as logger from 'firebase-functions/logger' | |
| import { defineSecret } from 'firebase-functions/params' | |
| import { HttpsError, onRequest } from 'firebase-functions/v2/https' | |
| const secretKey = defineSecret('convertMapSecretKey') | |
| const googleMapsApiKey = defineSecret('convertMapGoogleMapsApiKey') | |
| async function getFtidFromShortUrl(shortUrl: string): Promise<string> { | |
| const response = await fetch(shortUrl, { | |
| method: 'GET', | |
| redirect: 'manual', | |
| }) | |
| const redirectUrl = response.headers.get('location') | |
| if (!redirectUrl) { | |
| throw new HttpsError('not-found', 'Failed to get redirect URL') | |
| } | |
| logger.info('Redirect URL:', redirectUrl) | |
| const urlParams = new URLSearchParams(redirectUrl.split('?')[1]) | |
| const ftid = urlParams.get('ftid') | |
| if (!ftid) { | |
| throw new HttpsError('invalid-argument', 'No ftid found in redirect URL') | |
| } | |
| return ftid | |
| } | |
| async function getPlaceInfoFromFtid( | |
| ftid: string, | |
| ): Promise<{ place: string; coordinate: string }> { | |
| const apiUrl = `https://maps.googleapis.com/maps/api/place/details/json?ftid=${ftid}&fields=name,geometry&language=ja&key=${googleMapsApiKey.value()}` | |
| const response = await fetch(apiUrl) | |
| const data = (await response.json()) as any | |
| if (data.status !== 'OK') { | |
| throw new HttpsError( | |
| 'not-found', | |
| `Places API error: ${data.status} - ${data.error_message || 'Unknown error'}`, | |
| ) | |
| } | |
| const place = data.result.name | |
| const location = data.result.geometry.location | |
| const coordinate = `${location.lat},${location.lng}` | |
| return { place, coordinate } | |
| } | |
| function extractAppleMapInfo(url: string): { | |
| place: string | |
| coordinate: string | |
| } { | |
| const urlParams = new URLSearchParams(url.split('?')[1]) | |
| const place = urlParams.get('name') | |
| const coordinate = urlParams.get('coordinate') | |
| if (!place || !coordinate) { | |
| throw new HttpsError('invalid-argument', 'Invalid Apple Maps URL') | |
| } | |
| return { place, coordinate } | |
| } | |
| export const convertMap = onRequest( | |
| { secrets: [googleMapsApiKey, secretKey] }, | |
| async (req, res) => { | |
| try { | |
| const secretHeader = req.get('X-Secret-String') | |
| if (!secretHeader || secretHeader !== secretKey.value()) { | |
| throw new HttpsError( | |
| 'permission-denied', | |
| 'Forbidden: Invalid or missing secret string', | |
| ) | |
| } | |
| const { url } = req.body | |
| if (!url || typeof url !== 'string') { | |
| throw new HttpsError('invalid-argument', 'URL is required') | |
| } | |
| if (url.includes('maps.app.goo.gl')) { | |
| const ftid = await getFtidFromShortUrl(url) | |
| const { place, coordinate } = await getPlaceInfoFromFtid(ftid) | |
| const appleMapUrl = `http://maps.apple.com/?q=${encodeURIComponent(place)}` | |
| res.status(200).json({ | |
| place, | |
| appleMapUrl, | |
| coordinate, | |
| }) | |
| return | |
| } | |
| if (url.includes('maps.apple.com')) { | |
| const { place, coordinate } = extractAppleMapInfo(url) | |
| const googleMapUrl = `https://www.google.com/maps/search/?api=1&query=${encodeURIComponent(place)}` | |
| res.status(200).json({ | |
| place, | |
| googleMapUrl, | |
| coordinate, | |
| }) | |
| return | |
| } | |
| throw new HttpsError('invalid-argument', 'Unsupported URL format') | |
| } catch (error) { | |
| if (error instanceof HttpsError) { | |
| res.status(error.httpErrorCode.status).json({ | |
| error: { | |
| code: error.code, | |
| message: error.message, | |
| }, | |
| }) | |
| } else { | |
| logger.error('Unexpected error:', error) | |
| res.status(500).json({ | |
| error: { | |
| code: 'internal', | |
| message: 'Internal server error', | |
| }, | |
| }) | |
| } | |
| } | |
| }, | |
| ) |
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