1import type {NextApiRequest, NextApiResponse} from 'next';
 2
 3type ResponseData = Array<{place_name: string; center: [number, number]}>;
 4
 5const {MAPBOX_TOKEN, MAPBOX_URL} = process.env;
 6
 7export default async function handler(
 8  req: NextApiRequest,
 9  res: NextApiResponse<ResponseData>
10) {
11  const {search, proximity = 'ip', locale} = req.query;
12  if (!search) return res.status(400);
13  else if (!MAPBOX_TOKEN) {
14    console.warn('No MAPBOX_TOKEN provided');
15    return res.status(500);
16  }
17
18  const url = `${MAPBOX_URL}geocoding/v5/mapbox.places/${search}.json?proximity=${proximity}&access_token=${MAPBOX_TOKEN}&language=${locale}`;
19
20  try {
21    const mapBoxResult = await fetch(url).then(response => {
22      if (response.status === 429)
23        throw new Error('MAPBOX_RATE_LIMIT_EXCEEDED');
24      else if (response.status === 401) throw new Error('MAPBOX_UNAUTHORIZED');
25      return response.json();
26    });
27
28    if (mapBoxResult?.features) {
29      res.status(200).send(mapBoxResult.features);
30      return;
31    } else throw new Error('MAPBOX_MALFORMED_RESPONSE');
32  } catch (error) {
33    console.error(error);
34    res.status(500);
35  }
36}